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CNI strengthens its 5G research with two additional projects


02.12.2019 – The Communication Networks Institute (CNI) receives funding notification for two interdisciplinary projects focusing on the transformative character of 5G and its impact on Smart Grid and Smart City environments. Both projects are realized in close cooperation with the Institute of Energy Systems, Energy Efficiency and Energy Economics (ie3) and strengthen the joint research activities on interactions of future energy systems and modern communication technologies.


LARUS project coordinated by CNI successfully tests unmanned aircraft system over the Baltic Sea to support maritime search and rescue


22.11.2019 – Three-year research project to improve communication and data exchange at sea brings important findings to practice.
Over the Baltic Sea, the German Maritime Search and Rescue Service (DGzRS), together with nine partners, has successfully tested an unmanned aircraft system for use in an emergency at sea. At the end of the LARUS (Latin: Seagull) research project, which was started three years ago, there is now an automatic fixed-wing aircraft that has already safely travelled around 660 nautical miles (about 1,220 kilometres) across the sea. An enhanced version could improve communication and data exchange in the coordination of search and rescue operations by the Maritime Rescue Co-ordination Centre (MRCC) Bremen of the DGzRS - and thus save human lives - even under difficult operating conditions. The Federal Ministry of Education and Research funded the project as part of the research program for civil security.


Workshop on Network Infrastructure for Cyber-Physical Systems (NI-CPS) at INFOCOM 2020 co-organized by CNI


20.11.2019 – Modern societies are witnessing the prevalence of a wide assortment of cyber-physical systems (CPS) built upon network infrastructure for mission-critical applications, such as industrial control systems (ICS), and society-enabling services, such as intelligent transportation systems (ITS). Such applications and services may demand various levels of performance of their CPS network infrastructure, from strict and deterministic to lenient or probabilistic ones, for system agility, safety, stability and resilience. The workshop which is co-chaired by Prof. Liang Cheng from Lehigh University and Prof. Christian Wietfeld from TU Dortmund addresses is an increasing interest in modeling and analyzing network infrastructure in CPS and advancing its design and application. Contributions are invited by January 15, 2020.


Competence Center 5G.NRW welcomes international experts on Software-Defined Radio (SDR) at TU Dortmund University


14.11.2019 – On the 13th and 14th of November, the Communication Networks Institute (CNI) and National Instruments jointly hosted a roundtable on "advanced wireless research" at TechnologieZentrum Dortmund/TU Dortmund University. Experts from across Europe came together to share their work on 5G and beyond technologies, such as massive MIMO and millimeter wave communications.


Kickoff for the Digital Week Dortmund (Digitale Woche Dortmund, diwodo) at the German Football Museum #diwodo19.


05.11.2019 – The Communication Networks Institute supported the kick-off event of the third season of the Digital Week Dortmund as representative of the Competence Center 5G.NRW. This year's opening event at the DFB Museum offered a dynamic mixture of accompanying exhibition, versatile conference contributions on the topic of digital transformation and networking opportunities. In addition to an associated information desk, CNI demonstrated the potential of local 5G networks for use at major sporting events. The mobile 5G laboratory platform was used to show interested visitors the performance of new Network Slicing functionalities compared to established technologies such as Wi-Fi or LTE.


Digital Summit of the Federal Government: 5G as an Essential Base for Digital Data Platforms


29.10.2019 – At this year's Digital Summit of the Federal Government (Digitalgipfel der Bundesregierung), which took place this year in Dortmund on October 28/29, Prof. Dr.-Ing. Christian Wietfeld, Head of the Communication Networks Institute, presented the Competence Centre on 5G of the State of North Rhine-Westphalia (CC5G.NRW) to the Federal Minister Peter Altmaier and the State Minister Prof. Dr. Andreas Pinkwart, in which the Institute is significantly involved. A unique feature of the competence centre is a mobile 5G laboratory located at the TU Dortmund University, which enables companies to implement 5G applications on-site in the shortest time.


Workshop Series on "Resource constraints in data science - Recent research results and future directions within the SFB 876"


10.10.2019 – The SFB 876 has kicked off a series of workshops with dedicated themes about recent advancements in data science, artificial intelligence and adjacent disciplines within the Collaborative Research Center.
The first workshop "Resource constraints - Recent research results and future directions within the SFB 876" addresses in two sessions methods and approaches for tackling resource constraints terms of energy consumption, memory, real-time capabilities, computation efficiency and radio communication.


Four publications addressing recent topics in automotive communication networks presented at IEEE VTC-Fall 2019


10.10.2019 – Key results of the vehicular research projects "SFB 876 (B4): Analysis and Communication for Dynamic Traffic Prognosis" and "Intelligente Verkehrsinfrastruktur für sicheres vernetztes Fahren in der Megacity" (InVerSiv) were presented by CNI researchers at the IEEE VTC-Fall 2019. The IEEE Vehicular Technonology Conference (VTC) is the flagship conference of the Vehicular Technology Society (VTS) of the IEEE and took place in Honolulu during the 22nd-25th september.

Two of our contributions focus on using machine learning methods to analyze and optimize cellular vehicular communication systems. In a comprehensive real world performance analysis, we analyzed online data rate prediction in different scenarios and networks of multiple operators. Based on the foundation of the obtained results, we demonstrated Data-driven Network Simulation (DDNS) as a novel approach for accurate and fast performance optimization of opportunistic vehicular transmission schemes. Hereby, a machine learning-based black box approach is applied for modeling the end-to-end behavior of a to be optimized network performance indicator. Futhermore, we made two open source contributions to recent topics in network simulation. Lightweight ICT-centric Mobility Simulation (LIMOSim) provides an integrated framework for the joint simulation of aerial- and ground-based communication systems and targets the integration of Unmanned Aerial Vehicles (UAVs) into vehicular traffic systems. In addition, we presented an open source simulation framework for the performance analysis of Cellular Vehicle-to-Everything (V2X) Mode 4 communication which is a controversially discussed candidate system for enabling connected cars.


Successful Opening Event of Competence Center CC5G.NRW

Minister Pinkwart and CC5G.NRW Consortium

27.08.2019 – At the opening event of the Competence Center 5G.NRW, Prof. Dr. Andreas Pinkwart (minister for economics, innovation, digitalization and energy of the federal state of North Rhine–Westphalia [NRW]) informed himself on-site about the upcoming mobile network technology 5G and its innovation potential for industrial companies. The Competence Center 5G.NRW aims to support a smooth introduction of 5G and the development of NRW’s companies into a 5G lead market player.


Dissertation on the "Scalability, Reliability and Energy Efficiency in Ultra-Wideband Indoor Localization" successfully defended


17.07.2019 – The CNI team is happy to annouce its newest completed dissertation and congratulates Janis Tiemann to his execllent research results, which have created already a considerable impact in the research community.
Recent developments in wireless localization highlight the potential that comes with this new dimension in wireless communication. While outdoor environments are mostly covered by Global Navigation Satellite Systems (GNSS), precise indoor localization is still a challenge. Both, research and industry have great interest in the added value that precise indoor location information can bring to future Information and Communication Technology (ICT) systems. This dissertation analyzes the requirements for those applications and provides deep insight into the solution space of Ultra-Wideband (UWB) communication technology, by analyzing the accuracy, energy efficiency and, as a specific focus of this dissertation, the multi-user scalability of existing systems. The comparison with the state of the art shows the need for a new solution, providing both, scalable real-time capabilities and energy efficiency. Given these requirements, the dissertation of Janis Tiemann proposes the Augmented Terrestrial Localization for Autonomous Systems (ATLAS) solution approach specifically targeted to improve the Key Performance Indicators (KPIs) for control-grade Real-Time Locating Systems (RTLS). The proposed channel access scheme providing scalable, real-time capable and reliable localization for heterogeneous applications is specified, implemented and validated. Furthermore, approaches for ultra-wideband specific signal quality assessment and sensor fusion to improve location accuracy are discussed, implemented and evaluated.


New Competence Centre on 5G started

TU_Dortmund_5G _Web

25.06.2019 – The new mobile network technology 5G is expected to serve as basis for new innovations in many new areas, such as robotics, autonomous driving and health. The new research project „Competence Center 5G.NRW“ (CC5G.NRW) aims to establish North-Rhine Westfalia (NRW) as lead market for this new industry. the state NRW supports the projects with 3,3 Mio. Euro funding for 3 years, 1,2 MIo. Euro are dedicated to activities at TU Dortmund.

The main contribution of CNI is an innovative and very flexible 5G experimental platform, which can be used merely ad-hoc at locations throughout NRW. Thereby new 5G applications (e.g. based on 5G mmWave) can be explored in real-life deployment environments. The funding certifcates were presented to the project consortium on June 17, 2019, in Düsseldorf by Prof. Andreas Pinkwart, NRW's minister for economics, innovation, digitalization and energy (see photo, centre position), Prof. Christian Wietfeld underlined that the specific focus of the project is placed on the exploration 5G network slicing to provide highly reliable and highly scalable communication links.


InVerSiV project successfully concluded in final demonstration


19.06.2019 – Sensors for environment recognition help to minimize dangers for road users in semi-automated and highly automated driving in complex environments, such as inner cities.


German 5G auction finalized - A closer look into the course of the auction


29.03.2019 – For all those who are interested in the 5G auction, CNI presents some statistical data derived from the auction results published by the BNetzA.

The statistics show first of all the progress of the bids and the sum of the frequency blocks associated to each bidding party. In addition to that the cost per frequency spectrum (in Euro/Hz) is calculated as well as the split of the frequency spectrum and its associated cost.

Based on the data, one can easily identify different phases of the auction (see below). After 3 months duration and almost 500 rounds the auction finally ended with a total of 6,550 Mio. Euro. The final outcome shows that the bidders associated with average bids of around 20 Euro/Hz more value to the 2 GHz-band compared to the 3,6 GHz-Band (with around 10 Euro/Hz average bid). This is due to the more favourable propagation characteristics of the lower frequency: the same coverage can be achieved with less base stations. 

The analysis has been originally prepared for the lectures "Mobile Radio Networks" and "Business Economics of Information & Communication Technologies". The discussion of the German 5G auction serves as a vivid and timely case study to demonstrate the close and complex interdependencies of technology and economics.


5G-Conference of VDE ITG committee with over 200 participants


21.03.2019 – The timing could not have been better: just one hour before the national auction of 5G frequency bands was started on March 19, 2019, in Mainz, the participants of the 5G-technology-related conference „Future of Networking / Zukunft der Netze 2019 “ were welcomed by the chairs of the VDE-ITG commitee on communication networks and systems, Joachim Sachs, Ericsson, and Prof. Christian Wietfeld, TU Dortmund. The 16th conference of the series was jointly organized with the NetSys conference at TU Munich. The well attended conference featured invited talks primarily from industry representatives: from public and potential private 5G network operators (Dt. Telekom, Vodafone and Bosch), 5G international academia and manufacturers (IMDEA Madrid, Ericsson, Nokia) as well as further 5G stakeholders (such as automation manufacturer Siemens) and representatives from 5G related projects. Many participants also used the opportunity to attend sessions and workshops of the NetSys conference discussing primarily recent results from academic research. Within the VDE-ITG committee KT2, industry and academia representatives jointly organize workshops on „hot topics“ and regular conferences related to communication networks, such as the „Future of Networking“ conference series. Prof. Christian Wietfeld, head of the CNI at TU Dortmund, has been a co-chair of the KT 2 committee for over 10 years.


First Prize, IEEE ComSoc Student Competition Winners, 2018, Supervisor: Fang-Jing Wu


03.02.2019 – The outcome of our students’ project group has been awarded the First Prize by IEEE ComSoc Member and Global Activities Council for the IEEE ComSoc Student Competition 2018 in Abu Dhabi, United Arab Emirates. The project group entitled “Passenger Flows: Crowd Mobility Analytics with Edge Computing in Public Transport” is supervised by Junior Professor Dr. Fang-Jing Wu at Department of Electrical Engineering and Information Technology, Communication Networks Institute, TU Dortmund. The student team formed by Lucas Döring, Stephanie Althoff, Kai Bitterschulte, Keng Yip Chai, Damian Grabarczyk, Yunfeng Huang, and Lidong Mao, exploits Internet-of-Things techniques combining with machine learning algorithms to solve one of the important issues in public transport in smart cities. The goal of the developed system is to monitor passenger flows in an automated public transport system. To achieve this goal, lightweight embedded devices are integrated with multiple types of sensors for sensing wireless network activities and environmental conditions, and the onboard passenger estimation algorithms are designed for analyzing real-time data and further visualization. Therefore, the technical issues in wireless opportunistic communications, multi-modal sensing and data analytics, and visualization are addressed by the team. To conduct real-world experiments, the designed prototype was validated in the H-Bahn Dortmund that is an automated hanging train in the TU Dortmund’s campus.

The developed system was evaluated by an international committee with 45 experts nominated by the Competition Co-Chairs and by IEEE ComSoc Technical Committee, covering all areas. Two-round evaluation processes were performed by the committee from different aspects of social impact, technical content, originality, practical applicability and results, and quality of presentation. The developed system is characterized by giving insight into the uncertain wireless traffic and environmental conditions via an integration of sensing techniques, statistical learning algorithms, prototyping, and practical experiments in the real world, which makes the work particularly compelling and provide a physical gateway to a connected cyber world. Congratulations to the team at Communication Networks Institute, TU Dortmund.


CNI at High-profile Event on NRW's Digitalization Strategy


02.11.2018 – CNI has been invited to present its latest 5G research results at the Digitalkonferenz.NRW. Following the invitation of Prime Minister of North Rhine-Westphalia Armin Laschet and Minister of Economics and Digital Affairs Prof. Dr. Andreas Pinkwart, over 500 guests from politics, business, science, culture and society came together to discuss the digital strategy for North Rhine-Westphalia with the state government on October 26, 2018.

At our booth we presented a 5G mmWave antenna tracking system, implementing a mmWave link at 28 GHz between a fixed base station equipped with a highly directional and electrically steerable pencil beam antenna and an Unmanned Aerial Vehicles (UAV). Beamforming and pencil beam antennas are expected to become a major component of 5G mmWave New Radio networks. While spatial separation and high gains are anticipated benefits, the suitability of those new antenna types in highly dynamic scenarios, such as the use on UAVs, requires appropriate real–time steering capabilities and needs to be proven in practice. In our testbed, a rail system is customized to generate precisely reproducible mobility trajectories of the UAV. In case the antennas are aligned within a given error margin, a stable air–to–ground highspeed connection (up to 3 Gbps) can be observed during the flight experiments.


TU Dortmund's CNI contributes to the establishment of the German Centre for Rescue Robotics in Dortmund


28.10.2018 – On October 1, 2018, a new project has started - funded by the German Ministry for Education and Research (BMBF) - which aims to establish a national competence center for rescue robotics. For the first time in Germany, first responders, researchers and industry will work closely together to realize autonomous rescue robots, which will become part of national as well as international robotic task forces for emergency rescue operations. Additionally, new test procedures will be developed, which will form the basis for standardization and certification of different robot systems acting outdoor on the ground, in the air, in water, as well as indoor. Based on its long-term track record in this research area, the Communication Networks Institute (CNI) will lead the work related to robust wireless communications of robotic systems, which allow for reliable operation even in challenging conditions of rescue operations


Excellent Paper Award at International Conference for 5G Edge Clouds


18.10.2018 – We are delighted to announce that the contribution “Evaluating Software-Defined Networking-Driven Edge Clouds for 5G Critical Communications”, by Fabian Kurtz, Igor Laukhin, Caner Bektas and Christian Wietfeld, was awarded as Excellent Paper at the 9th International Conference on ICT Convergence (ICTC) 2018. The flagship conference of the Korean Institute of Communications and Information Sciences, co-sponsored by the IEEE, took place in October in Jeju, South Korea. Within the context of the BMBF funded Franco-German project BERCOM (Blueprint for Pan-European Resilient Critical Infrastructures based on LTE Communications), the research discussed in the paper demonstrated the advantages of Edge Clouds in the scope of 5G critical infrastructure communications.


Dissertation on Software-Defined Networking for Energy Systems successfully completed

Dorsch Promotion 2018 klein

08.10.2018 – The CNI team is happy to announce that Nils Dorsch has successfully defended his dissertation on October 2, 2018. The dissertation titled "Software-Defined Networking (SDN) for Real-Time Capable, Reliable and Cost-Efficient Smart Grid Communication Infrastructures" has proposed and investigated innovative concepts for communication networks suitable for the so-called Smart Grid. The work has been carried out within the interdisciplinary DFG-funded research group 1511 on "Control and protection systems for the future energy system". Dr. Dorsch has proposed a dedicated SDN interface which enables energy system operators to control the underlying communication system through a so-called north-bound interface. These extension of the Floodlight SDN controller originally developed at Stanford University have been also made available as open source. As a unique solution approach, Nils Dorsch has integrated the Network Calculus method into the real-time SDN controller to ensure that the maximum delay bounds required by the energy system are met. The work of Nils Dorsch has attracted considerable attention: a first paper describing the overall system concept has been cited over 50 times since its publication in 2014 at the IEEE SmartGridComm conference. An analysis of the economic impact of SDN-based networks has been recently published as journal article in NETNOMICS (Springer). Another journal article on "Enabling Hard Service Guarantees in Software-Defined Smart Grid Infrastructures" is accepted to appear in Computer Networks (Elsevier).


IEEE Student Fellowship for Outstanding Contributions to Machine Learning in Communications based on research in DFG SFB 876

Sliwa Scholarship 2018 Web

11.09.2018 – We are very happy to announce that Benjamin Sliwa has received the 2018 Transportation Electronics Fellowship Award "For Outstanding Student Research Contributions to Machine Learning in Vehicular Communications and Intelligent Transportation Systems" of the Vehicular Technology Society (VTS) within the IEEE, which grants two student fellowships per year worldwide. The bestowal took place at the IEEE Vehicular Technology Conference (VTC) Fall 2018, in August in Chicago, USA, which is the flagship conference of the VTS. Within his research in project B4 "Analysis and Communication for Dynamic Traffic Prognosis" of the Collaborative Research Centre (SFB 876), Benjamin Sliwa has presented pioneering work in using machine learning for resource-efficient data transmissions within cellular vehicular networks.


Students, who visited CNI-lecture "Betriebswirtschaftliche Grundlagen der IKT", win Thyssenkrupp Manager Cup


16.07.2018 – Congratulations to the team of the IKT- and ET/IT-students Melina Geis, Thorsten Röper, Christoph Schmickler and Timo Sievernich (see photo), who have won this year's Thyssenkrupp Manager Cup. Once in a year, teams - consisting of students of TU Dortmund, FH Dortmund and the International School of Management (ISM) - compete in a corporate strategic planning simulation and try to gain additional market shares as rival companies. The winning team visited the Communication Networks Institute's lecture "Betriebswirtschaftliche Grundlagen der Informations- und Kommunikationstechnik (BGIKT)" as recently as last year. As an obligatory subject for the IKT-Bachelor's Degree (and as an elective subject for the course of studies in ET/IT), the specially tailored proposal of lectures rounds out the students' technic-scholarly qualification. The IKT-Bachelor's Degree prepares students extraordinarily to actively participate in our society's digitalization and contains a lot of practice, such as the preparation of an own business plan for a potential start-up.


IEEE Best Student Paper Award at Vehicular Technology Conference in Porto


14.07.2018 – We are very happy that Benjamin Sliwa has received the Best Student Paper award of the IEEE Vehicular Technology Conference (VTC) Spring-2018, which took place in June in Porto, Portugal (see photo). The VTC is the flagship conference of the Vehicular Technology Society within the IEEE and is typically attended by approx. 600 international scientists with a focus on wireless and mobile communications. The contribution "Efficient Machine-type Communication using Multi-metric Context-awareness for Cars used as Mobile Sensors in Upcoming 5G Network" has been co-authored by further CNI members Robert Falkenberg, Johannes Pillmann and Christian Wietfeld jointly with Thomas Liebig from the Computer Science department. It was selected from over 200 papers of the conference with PhD students as first author. The paper reports on key results of the research of the projects B4 "Analysis and Communication for Dynamic Traffic Prognosis" and A4 "Resource efficient and distributed platforms for integrative data analysis" within the Collaborative Research Center (SFB 876). The results of the paper demonstrate the significant potential of machine-learning for the optimization of mobile networks.


New VDE ITG discussion paper "Offenes Internet in Deutschland - Eine Bestandsaufnahme"


14.07.2018 – 16 experts of the field of science and industry - among them, also head of the CNI Prof. Dr.-Ing. Christian Wietfeld - have published a discussion paper dealing with questions all about the open internet and the advancement of network neutrality in Germany. Head of the ITG Prof. Dr.-Ing Hans Schotten gives a classification (translated from German): "Recommendations, which technical boundary conditions have to be kept in mind concerning the advancement of network neutrality, are given. The intention of this is to ensure the essential goal of a transparent network access free from discrimination, on the one hand, but then also to be able to support services having high demands towards data transmission quality. Since the idea of static defined special services, for which exceptions are accepted, could impede innovations, intelligent dynamic mechanisms, that allow the different demands towards the 'open internet' to be realized simultaneously and as conflict-free as possible, are needed. The discussion paper gives an excellent contribution by presenting technical opportunities for action to the social discussion."


BMBF State Secretary Rachel catches up on the LARUS-Project

Larus Rachel 2018

20.06.2018 – At the BMBF-Innovationsforum "Zivile Sicherheit", which took place on June 19 and 20, 2018 in Berlin, the joint research project LARUS, which is coordinated by the Communication Networks Institute, was presented by the project coordinator Prof. Dr.-Ing. Christian Wietfeld in the session "Robotiksysteme für das Rettungswesen". At the same time, this was an opportunity to present the project to the parliamentary BMBF State Secretary Thomas Rachel personally.
In a tweet by the BMBF, that has been written at the booth of the LARUS-Project, the project is described as an extraordinary leading example for the practical utility of civil security research. LARUS investigates a flight robotics system for the automatic finding of missing persons at sea. In October 2019, the overall system shall be presented at the Baltic Sea.


The AirBox project visited Communication Networks Institute (CNI), TU Dortmund


15.06.2018 – Dr. Ling-Jyh Chen, the key Principle Investigator of the AirBox Open Source Project in Taiwan, visited Communication Networks Institute (CNI), TU Dortmund on 15 June. He is the Director of Department of Information Technology Services of Academia Sinica. His most recent project is the “AirBox project", which is based in Taiwan and operated in a grassroots fashion with more than 4,000 deployments across 37 countries till March 2018. The project enables PM2.5 monitoring at a finer spatio-temporal granularity and enriches environmental data analysis by making all measurement data freely available for everyone. The data portal of this project has become the most popular data source about PM2.5 distributions in Taiwan. This project also inspires citizen science in which industrial and academic participants are making contributions to the open-source participatory ecosystem for PM2.5 monitoring.


5G Mobile Communications Lab at CPS.HUB/NRW Conference „Zukunft der Mobilität: Zwischen Datenschutz und Datenauswertung"

5G Mobile Communications Lab

28.05.2018 – Together with the Wirtschaftsförderung Dortmund, CPS.HUB/NRW has hosted the conference "Das nächste Level der Mobilität – Automatisierung, multimodale Services und die Rolle von Daten", at which internationally well-known scientists discuss the future of mobility. Among presentations by Prof. Dr. Fosca Gianotti of the KDD Lab in Pisa and Prof. Dr. Dimitrios Gunopulos of the University of Athens, there were also leading German scientists, who attended the conference, such as Prof. Dr. Katharina Morik. For the first time, as part of the associated exhibition, because of a recently purchased special vehicle of the Communication Networks Institute of TU Dortmund, the institute's powerful mmWave 5G New Radio test route could be brought into service in a field experiment. Due to the mobile 5G laboratory environment, with the aid of so-called Pencil Beams, it is possible to establish strongly directed communication links, which enable a data transmission rate from up to 2,8Gbit/s and therefore exceed current 4G systems in many respects. The usage of this 5G New Radio Hardware, that is not to be found at the market by now, enables the institute to actively work on the development of communication technologies of the future.


Sucessful Initiation of Unmanned Aerial Systems for the Support of See Rescue Operations

LARUS Early Demonstrator

26.04.2018 – In the case of the detection and rescue of shipwrecked people, every minute counts. Often, the voice-radio-based distress message is imprecise and does not contain all the necessary information for an efficient local rescue operation. This is exactly the point where the research project "LARUS - Lageunterstützung bei Seenoteinsätzen durch unbemannte Luftfahrtsysteme" begins. With the aid of a multisensor-platform in the shape of an autonomous flight system, the detection and rescue of the victims shall take place faster and more efficiently in the future. This was imposingly presented at an airfield in Rotenburg (Wümme) in front of an interested and impressed public. Here, the roundabout 30 guests had the chance to see the flight system in action and were presented with the project's innovations by understandable demonstrative superstructures by the consortium and detailed explanations.


Invited IEEE guest editorials related to electrical vehicle and rescue robotics research


23.01.2018 – Followed by a talk on a panel of the most recent IEEE Conference on Standards in Communications in Helsinki in September 2017, Prof. Wietfeld was recently invited to contribute two guest articles to IEEE e-publications. The most recent Newsletter of the IEEE Vehicular Society (VTS) features a short article on the relation of "Electric Vehicles and the Smart Power Grid", The article stresses the need for interoperability of E-Vehicle charging processes and reports on the contributions of CNI in this area. In the recent edition of the IEEE Standards E-Magazine, Prof. Wietfeld discusses "Networked Rescue Robots: Standards Pave the Way From Prototypes to Deployments". Since 25 years, Prof. Wietfeld has contributed to various international standards in the areas of road transport telematics, cellular networks, mobile Internet and most recently Cyber Physical Systems.


Starting 2018 with a Newly Appointed Junior Professorship


22.12.2017 – Happy holidays and a successful 2018 to all our staff, students, alumni, partners and friends of CNI! We are very delighted to have received numerous acknowledgments for our efforts in the fields of research and teaching. At the same time, we are looking forward to 2018, in which our new junior professor Fang-Jing Wu is going to strengthen our team in the area of "Software-Defined Communication Systems“. Furthermore, we are putting our 5G New Radio Laboratory System at 28 GHz as well as our mobile Radio Lab for outdoor use into service. We would like to thank everybody for the committed cooperation on numerous projects and are looking forward to all the challenges in the future.
Best wishes from Dortmund
Yours Christian Wietfeld


Best Paper Award for Papers on Software-Defined Networking in Smart-Grid


12.12.2017 – The best things come in threes: The institute is pleased to have the third Best-Paper Award given to researchers of the institute this year. This time it is a paper by Nils Dorsch, Fabian Kurtz and Christian Wietfeld, titled “Communications in Distributed Smart-Grid Control: Software-Defined vs. Legacy Networks“, which was presented at the international IEEE-Conference in Beijing, with the topic "Energy Internet and Energy System Integration". The research was partly conducted within the DFG-Research Group 1511 for protection and control technology for future energy supply and partly compiled within the German-French joint project BERCOM (Blueprint for Pan-European Resilient Critical Infrastructures based on LTE Communications, which is funded by the BMBF).


New Book on the Subject of "Underground Sensing" - A Contribution of the CNI


27.11.2017 – The results of an international book project on the subject of "Underground Sensing“ has been published this month. Within the TaMIS project (Talsperren-Mess- und Informationssystem), which is funded by the BMBF, the CNI has been dealing with a radio-based sensor system to measure moistness in the subsoil since 2015 (http://tamis.kn.e-technik.tu-dortmund.de/).
Respectively to this project the book project’s publisher Prof. Liang Cheng from the Lehigh University in the USA requested a contribution on that topic, which the CNI replied to with an article titled "Integration of UAVs with Underground Sensing: Systems and Applications“. Because of the thematic connection to the use of flight robots (Unmanned Aerial Vehicles - UAVs), the book-entry reaches beyond the current project and sketches future research outlooks. In 2012, Prof. Liang Cheng spent his sabbatical year at the Institute and is a long-standing research partner of Prof. Wietfeld.


ETSI "Best Presentation Award" for Papers on Interoperable Charger Interfaces


26.10.2017 – At the annually held ETSI-Conference "User Conference on Advanced Automated Testing“, Sven Gröning from the Communication Networks Institute was awarded the "Best Presentation Award“ after an assessment by all members. This award is an acknowledgment for the continuous activities of the institute in the field of automatized test processes for the Internet of Things, this time especially for the charger interface for electric mobility (Title of the Presentation: "S. Gröning, J. Schmutzler, C. Wietfeld, Conformance Testing of Electric Vehicle Charging Communication based on TTCN-3 von S. Gröning, J. Schmutzler, C. Wietfeld). This year, the conference took place at the Fraunhofer-Institute FOKUS in Berlin.


Oliver Fuhr’s Bachelor Thesis Got Awarded with the DRIVE-E Study Prize


26.10.2017 – The Federal Ministry for Education and Research (BMBF) and the Fraunhofer-Gesellschaft awarded four prize winners with up to 6,000 euros for their excellent theses on the issue of electric mobility at the Porsche museum in Stuttgart. Oliver Fuhr won the second prize in the category Project and Bachelor Theses. His thesis, which was developed at the Communication Networks Institute and supervised by Prof. Christian Wietfeld, deals with the question of how solar panels and vehicles can communicate with one another to enable remote charging.

Federal Research Minister Johanna Wanka said in celebration of the award ceremony (translated from German): "I congratulate all DRIVE-E winners. You work for sustainable mobility, that uses resources efficiently, is climate-friendly and maintains our quality of life. With your enthusiasm and your technical know-how, chances are good for Germany to keep up playing a prominent role as an automobile manufacturer and mobility provider in the future."


"Best Paper Award" for Contribution on UWB-Based Indoor-Navigation for Robotic Applications


25.09.2017 – Janis Tiemann won the highly-desirable "Best-Paper-Award“ at this year’s International Conference on Indoor Positioning and Indoor Navigation (IPIN) in Sapporo, Japan. In his paper, titled "Scalable and Precise Multi-UAV Indoor Navigation using TDOA-based UWB Localization“, Tiemann suggests a new method for highly precise and scalable radio-based positioning. This method fulfills an important requirement for the deployment of autonomous robots in areas such as logistics and emergency services. The judges honored the innovative system concept as well as the extensive validation through experiments. The papers are important contributions to the subproject A4 of the DFG SFB 876 "Ressourcen-effiziente und verteilte Plattformen zur integrativen Datenanalyse" and also to CPS.HUB/NRW.


New Simulator for Integrated Analysis of Communication Systems for Traffic Scenarios Got Honored with "Best Contribution Award"


25.09.2017 – Benjamin Sliwa got honored with the "Best Contribution Award“ on this year’s international OMNET-Summit at the University of Bremen for the simulator LIMoSIM (Lightweight ICT-centric Mobility Simulation), which was predominantly modeled by him in the course of his research in the subproject B4 "Analyse und Kommunikation für die dynamische Verkehrsprognose" as part of the DFG Collaborative Research Center 876. LIMoSIM is characterized by its ability to emulate traffic flows so that an analysis of technical communication aspects is made possible runtime-efficiently.
The method LIMoSIM is a welcomed addition to earlier approaches, that use simulators from traffic technology. These technologies are greatly detailed, but with further investigations on rare failure events, these methods show a disproportionate high run-time. LIMoSIM can, therefore, be of special use for investigations in the field of 5G Ultra-High-Reliability Communication for autonomous driving.


Another Team of Founders from the Institute Succeeded at Nationwide Competition


01.09.2017 – After comnovo GmbH, the first spin-off of the institute, won the IKT innovativ start-up prize from the Federal Ministry of Economics in 2013, Smart Robotic Systems GmbH, another spin-off, now won the first prize of the competition "Digital Innovationen“. The founders and CNI-Alumni Dr.-Ing. Niklas Goddemeier and Sebastian Rohde received the prize on September 1, 2017 at the International Consumer Electronics Fair in Berlin, handed over by Dirk Wiese, the Parliamentary State Secretary of the Federal Ministry for Economics and Energy. Based on results from perennial research, the Smart Robotic Systems - an extended system for unmanned flight devices SKIDER - uses open interfaces to enable a made-to-measure integration of unmanned flight systems for various applications in different areas, such as catastrophe prevention, energy sector or agriculture. The spin-off got supported by an EXIST funding of the Federal Ministry of Economics.


Dissertation on resource-efficient communication in distributed energy systems – successfully completed


28.06.2017 – On June 26, 2017, one could congratulate Stefan Feuerhahn on his passed doctoral examination.

The IEC 61850 specification defines a communication standard for the automation of energy systems and provides a powerful data model and various services for monitoring and navigating components of energy systems.
While the initial focus was on the automation of high and medium voltage networks and their substations, the IEC 61850 standard is also an option for navigating decentralized and distributed energy resources – such as photovoltaics. Feuerhahn addresses the question of whether this standard is eligible and which alternatives – like OPC UA – could be considered additionally. His motivation for this investigation developed while he was working on practical research projects at the Fraunhofer Institute ISE in Freiburg.
Considering the long investment cycles, it is of major importance that the "right" protocols are selected; since a specific system landscape will be set for years to come.

With his analysis, Feuerhahn makes a valuable contribution to the controversial discussions on alternative approaches in the field of Smart Grid.


IEEE Magazine Special Issue on Smart Grids published


04.05.2017 – Wireless communication systems are essential for realizing future energy systems, the so-called Smart-Grids. The current edition of the IEEE Wireless Communication Magazines, being a “Special Issue”, devoted itself to show various facets of applying wireless communication to Smart Grid.
The articles, for example, deal with cellular radio networks, satellite systems as well as energy harvesting for sensor networks. Prof. Wietfeld coordinated the review process and the compilation of the magazine as a senior guest editor.


Parliamentary Evening in Berlin: Domestic electricity for sustainable E-Mobility


26.04.2017 – On April 24, 2017, the TU Dortmund has organized a parliamentary evening with project partners in the course of the project SyncFuel - synchronized domestic electricity for charging electronic vehicles - in Berlin, where the potentials, chances and the necessities of using sustainable domestic electricity for electric mobility were shown.


Bernhard-Walke Dissertationspreis for CNI-Alumnus Niklas Goddemeier

07.04.2017 – This year, the award, that includes prize money of 1,500 euros, for the best Ph.D. thesis of all Communication Networks Institutes of the "Freunde und Förderer der ComNets-Einrichtungen" goes to Dr.-Ing. Niklas Goddemeier from TU Dortmund for his thesis "Communication and Cooperation Strategies for Aerial Robotic Systems". The best final paper of TU Dortmund, which was awarded with a prize money of 500 euros, was handed in by Benjamin Sliwa (M. Sc.) (title: "Intelligentes Routing in mobilen Ad-Hoc-Netzen durch multifaktorielle Mobilitätsprädiktion"), who works at his PhD thesis at the Communication Networks Institute (SFB 876) now.

Congratulations to both winners!


CNI-Key Note at the "Wireless Days 2017" in Porto

07.04.2017 – Prof. Wietfeld informed about current research of the Communication Networks Institute (CNI) in the introductory presentation with the title "Wireless Networking for Cyber Physical Systems: Providing Reliable Connectivity in Challenging Environments". This year in Porto, the international conference supported by the IEEE and IFIP was hosted by the Electrical Engineering Faculty of the University of Porto. The contribution "Payload-Size and Deadline-Aware Scheduling for Time-critical Cyber Physical Systems" was also part of the conference's technological program.


5G-Initiative for Germany - TU Dortmund Is a Part of It

06.04.2017 – 5G-Initiative for Germany - TU Dortmund is a part of it: The Federal Minister for Traffic and Digital Infrastructure has started an initiative, that shall define the development of a strategy for the initiation of the next mobile communications generation 5G in Germany. The Communication Networks Institute (CNI) contributes to this with its projects concerning the use of machine learning approaches for mobile communications (SFB 876), networked driving (InVerSiV), rescue robotics (LARUS) and wireless communication for critical infrastructures (TaMIS and BERCOM).


Communication Networks Institute hosts the 5th international Testing Symposium concerning the CCS charging interface in South Korea


20.12.2016 – The fifth international ISO/IEC 15118 Testing Symposium concerning the e-vehicle charging interface took place in South Korea on November 10 and 11, 2016. 36 companies from 10 nations came together on the South Korean island Jeju in order to test their newest control device developments for the Combined Charging System. The CNI organized the event in close collaboration with the Korea Smart Grid Institute (KSGI), Gridwiz, the CharIn e.V. and the ISO/IEC 15118 Joint Working Group. Furthermore, the CNI was on-site with its innovative Test System to draw its further conclusions about current research in the BMWi projects eBusCS and DELTA.


Awards for Staff Members of the Institute


06.12.2016 – At the end of 2016, we are delighted that two scientists of the institute have been honored with notable awards for their research. Dr.-Ing. Christoph Ide received one of the prestigious junior awards by the Informationstechnische Gesellschaft (ITG) in the VDE for his thesis "Resource-Efficient LTE Machine-Type Communication in Vehicular Environments". Some days later, Benjamin Sliwa, who currently does research on innovative routing protocols for networked vehicles in the SFB 876 in the subproject B4, received the ABB-Award for the best Mater's Degree in Electrical Engineering and Information Technology of 2016


Excellent wireless localization technology - CNI team wins IPIN competition


07.10.2016 – The CNI team (Janis Tiemann, Fabian Eckermann and Christian Wietfeld) won first prize in the "Indoor Mobile Robot Localization" category within the framework of IPIN Indoor Localization Competition at the International Conference on Indoor Positioning and Indoor Navigation (IPIN). We are very pleased with this success in our first participation in the competition! At the same time, two scientific contributions to the work created in the context of SFB 876 and CPS.HUBs / NRW were presented at the conference. The conference was held in Alcalá de Henares / Madrid / Spain.


New projects for the networking of autonomous vehicles with 5G mobile radio


05.07.2016 – Over the past few years, the Chair for Communication Networks has developed an international reputation for the research of new technologies for the networking of autonomous vehicles, whether on the road or in the air. In near future, research projects will once again offer the opportunity to work as a doctoral candidate or as a student in the development of future mobile radio systems of the 5th generation.


TU Dortmund joins the OAI Software Alliance


17.06.2016 – Initiated by the Institute for Communication Networks, TU Dortmund joins the OpenAirInterface Software Alliance (OSA). The OSA is a consortium of research institutions and industry partners that drives the open source development of LTE network elements towards a 5G mobile stacks. The Institute for Communication Networks is actively involved in the development of the project.


IEEE Communications Magazine „Feature Topic“ for the networking of UAVs


02.06.2016 – The latest edition of the international widespread IEEE Communication Magazine dedicates a "Feature Topic" on "Wireless Communications, Networking, and Positioning with Unmanned Aerial Vehicles". Prof. Wietfeld co-created this „Feature Topic“ as a guest editor. The strict rules of this Communication Magazines prohibit that guest editors contribute to a „Feature Topic“ submit, even if the subject area of the special edition concerns the field of leading scientists.


Dissertation on swarm based, networked robotic systems for emergency personnel successfully completed


17.05.2016 – On 17.05.2016 Niklas Goddemeier successfully defended his dissertation on “Communication and Cooperation Strategies for Aerial Robotic Systems”. The entire chair heartily congratulates.
Reliable networking of robotic-systems is an important requirement for their deployment in various scenarios, for example the exploration of damage situations by rescue services. Especially the usage of unmanned aircrafts as sensor- and communication-platforms offer great potential because of their wide flexibility in disaster scenarios, in which infrastructure might be heavily damaged. The system design for communication- and cooperation strategies as well as the comprehensive performance assessment and validation presented in the thesis are using model based methods, including multi-scale-simulation trough software- and hardware-in-the-loop-concepts and experiments in the field. This paper provides an excellent contribution to the international research in this field due to innovative, scientific concepts reaching a high level of maturity.


CPS am Beispiel von Connected Cars „anfassbar“ gemacht: Perspektiven der Car-2-X Kommunikation

CPS HUB Connected Cars

09.05.2016 – The Possibilities of car networking as well as new digital business models formed the primary focus of the event: “CPS am Beispiel von Connected Cars “anfassbar” gemacht: Perspektiven der Car-2-X Kommunikation”, that took place at the Cross-Innovation-Center of the chair for Communication Networks at TU Dortmund on the 28th of April. More than 50 participants followed an invitation of the CPS.HUB specialist group for communication networks and an interesting program awaited them on topics about Car-to-Car, Car-to-Infrastructure, Car-to-Grid and Car-to-Cloud communication.


Research results of the chair present at Hanover Fair


25.04.2016 – An advanced form of the wrong-way-driver-warning-system developed as a BMWi-ZIM-project with participation of the chair, will be presented at the Hanover Fair from 25.04 – 29.04.2016.


Invitation to the event: „CPS am Beispiel von Connected Cars „anfassbar“ gemacht: Perspektiven der Car-2-X Kommunikation“


15.04.2016 – Autonomous driving cars will shape our street scene in the future. Sensors installed in today’s vehicles have already enabled an increasingly stronger automatization of traffic – even though information processing takes places manly within the vehicle. Connected Cars offer enormous potential. The connection of vehicles (Car-to-Car) and their surroundings (Car-to-X) creates new business models and contributes to road safety. We would like to discuss current and future possibilities of vehicle communication together with you and are delighted to invite you to our event.


Special Issue on Smart Grids


01.03.2016 – As leading guest publisher Prof. Wietfeld takes responsibility for a special edition of the international IEEE Wireless Communication Magazines regarding the networking of future energy systems, the so called Smart Grids. Scientist from all over the world are invited, to hand in their manuscripts until 5 June 2016. These will pass through an intense reviewing process. The special edition will be released in February 2017.


Locate cars with traffic lane accuracy – the results of a dissertation show how it works…

Niehöfer Diss

29.02.2016 – On 15 February 2016, Brian Niehöfer of the CNI has successfully completed his dissertation regarding “Modellbasierte Interferenzkompensation für die satellitengestützte Ortung in urbanen Szenarien” – we congratulate cordially!

So called Cyber-Physical Systems depends on precise location information, to reliably locate participating systems. For the derivation of dynamic traffic card data, that take short-term changes like temporary road works into account, it is therefore necessary to capture automotive movement at least traffic lane accurate. The precise localization is also essential for future autonomous vehicles. Today’s satellite based navigation systems do not offer the necessary accuracy, especially in inner city scenarios. Buildings disturb the visual contact to the satellite and distort the for the positioning required distance measurement to the satellite through multipath propagation. The work of Mr. Niehöfer takes care of the also known as “Urban Canyon” problem and presents a novel solution approach.


New project group for SS2016 – Wireless Warehouse – Self-organizing warehouse due to ultra-low-energy communication


01.02.2016 – Circuit design, micro-controller programming and the development of a communication protocol for a self-inventorying stock using LEGO-bricks. The project group “Wireless Warehouse” will deal with these tasks at the institute of communication networks during summer semester 2016 and by that create a bridge between the Internet of Things (IoT) and a practical oriented application in
context of Industry 4.0


Successful Final Presentation of the Project Group LINKED Localization for Inductive Charging Systems for Electric Mobility


17.12.2015 – As part of the project group LINKED, an autonomous parking system with inductive energy transmission and modulated communication has been developed.

By using an innovative ultra-wideband-based localization system, the robot has been enabled to execute high precision parking on a designated parking spot. An inductive charging system for electronic vehicles based on Qi-standards has been created. The usual electric vehicle low-level-signaling through IEC 61851-1 has been replaced by modulation of wireless energy transfer. Automated charging control in accordance with ISO/IEC 15118 has been altered and expanded for wireless charging processes. The extraordinary commitment of the students and the interdisciplinary, economically relevant topic led to the particularly successful completion of the project group.


Doctorate for the evaluation of radio-based machine-to-machine communication in Smart Grid applications successfully finished


02.12.2015 – On 1.12.2015 Mr. Ph.D. Christian Hägerling completed a doctorate on the subject of “Performance Evaluation of Wireless Machine-to-Machine Communications for Smart Grid Applications” with success. We congratulate cordially. The thesis is concerned with the highly topical issue of the design and the comparative assessment of different cellular technology options for the networked energy system of the future, the so-called Smart Grids.


Doctorate in resource-efficient LTE Communication completed successfully


26.11.2015 – On 26.11.2015 Mr. Ph.D. Christoph Ide successfully passed the oral examination for a doctorate. We congratulate cordially!

The dissertation titled “Resource-Efficient LTE Machine-Type Communication in Vehicular Environments“ discusses a novel terminal controlled data transmission strategy, which reduces the correlation of Machine-2-Machine (M2M) data transfer to a quality of service of Human-2-Human (H2H) communication.

The recent multi criteria predictive Channel-Aware Transmission technique includes current and predicted channel quality, next to application requirements as well as client speed to calculate stochastic probability of delivery.


TU Dortmund gathers an international body of experts in a “Testival” for power refueling


12.11.2015 – Japan and South Korea fly in electric vehicle prototypes

Each vehicle shall be able to refuel at any charging station regardless the manufacturer – whether direct- or alternating current, whether speed- or steady charger. This is a requirement in the course of the implementation of electro mobility, convincing drivers to buy electric vehicles. The chair of communication networks under the supervision of Prof. Christian Wietfeld conducted research on smart interoperable power refueling and therefore has invited to the “Conformance & Interoperability Testival”. In doing so the experts were brought up to date to what extent the introduction of an international charging standard has advanced to.


SecInCoRe Advisory Board Meeting in Athens


11.09.2015 – From 10 to 11 September the second Advisory Board Meeting took place in Athens. The Advisory Board consists of representatives of public institutions of the civil defense from several European countries. The members of the consortium SecInCoRe exchange views in particular on information management with special focus on the current migration and refugee situation and introduce new concepts to improve communication between countries and their organizations. A special feature of SecInCoRe is the interdisciplinary composition, so that in addition to technical developments and processes, regulatory social and ethical issues were discussed.


Doctorate in Secure Mesh Protocols completed successfully


04.09.2015 – On the 21.08.2015 Mr. Ph.D. Mohamed Sbeiti successfully passed the oral examination for a doctorate. We congratulate cordially!

The dissertation entitled “Secure and efficient routing in highly dynamic WLAN mesh networks” depicts design and performance evaluation of the innovative PASER protocol. PASER stands for Position- Aware, Secure and Efficient mesh Routing and offers a higher safety in routing attacks than existing IEEE 802.11s/i- safety mechanisms. It is shown, that PASER reaches a comparable performance in realistic scenarios, that the currently widely used, but insecure routing protocol hybrid wireless mesh protocol (HWMP) in combination with IEEE 802.11s safety mechanisms reach. The PASER protocol in particular provides protection against the so-called wormhole attack, that attackers use to sabotage a network. Thus PASER is especially well suited for communication networks with increased security requirements: in automatization technics, for Industry 4.0-szenarios and for cyber physical systems (CPS).

The dissertation will soon be published in the series “Dortmunder contributions to communication networks and systems” by Shaker Verlag.


New Staff Members Wanted

14.08.2015 – For new, exciting research projects in the fields of "Smart Grid", "Connected Car", "Industry 4.0" and "Cyber-Physical Systems", we are constantly looking for new staff members.


Excursion to Telekom - Insights in Planning and Operating of Cellular Networks


30.06.2015 – At midsummer temperatures, the almost traditional excursion of the Communication Networks Institute to Telekom Technik in Dortmund took place on June 30, 2015.

There, students of the master's lecture "Mobilfunknetze" (English translation: "Cellular Networks") and the bachelor's lecture "Betriebswirtschaftliche Grundlagen der IKT" (English translation: "Economic Basics of ICT") had the possibility to get exciting and practical insights into the network operation of Deutsche Telekom. From network planning through to successive testing and optimizing of the network quality by measuring vehicles, several stations within the company, at which respective experts presented their workspace, have been visited in small groups. This way, the students were able to monitor, how last white spots of the cellular network are systematically eliminated by complex planning methods.

The highly interesting excursion was topped off by a collective snack, which allowed for deepening contacts to the practical working world.


Doctoral Studies Concerning Hybrid Simulation of Energy Grids and Communication Networks Successfully Finished


25.06.2015 – On June 10, 2015, Dr.-Ing Hanno Georg successfully passed his doctoral examination to the topic "Co-Simulation Based Performance Evaluation of ICT-Infrastructures for Smart Grids".

The institute congratulates the newly minted Doctor of Engineering and, at the same time, is happy about a small jubilee, for this Ph.D. thesis was the tenth since Prof. Wietfeld's accession to office.

In his thesis, Dr.-Ing Hanno Georg deals with the conception and realization of the simulation platform "Integrated Co-Simulation of Power and ICT Systems for Real-Time Evaluation (INSPIRE)". The research has been conducted within the Forschergruppe 1511 "Schutz - und Leittechnik für eine zukünftige, sichere Energieversorgung". Georg's contribution to the research group's idea of the co-simulation of energy grids and communication networks especially lies within the suggestion of using the High-Level-Architecture (HLA) approach. He has to be given credit for the detailed draft, realization and validation by case studies.

The thesis will be published in the series "Dortmunder Beiträge zu Kommunikationsnetzen und -systemen" by Shaker Verlag, soon.


CNI-Scientists nominated

25.06.2015 – CNI-Scientists are nominated for awards in the competition "Zukunft.Erfinden.NRW 2015" in the categories "Engineering" and "Progress in Transfer".


ICT-Foundation of the Year

07.05.2015 – Spin-Off of the institute awarded as "IKT-Gründung des Jahres" (English translation: "ICT-Foundation of the Year") by the Federal Minister of Economy.


ComNets-Awards for Graduates of the Institute


23.04.2015 – The coveted awards by the "Verein der Freunde und Förderer der ComNets-Einrichtungen", who dedicated themselves to the research on future communication networks, were handed over in Aachen on March 13, 2015.

The Bernhard-Walke-Preis for the best Ph.D. thesis in 2014, which includes prize money of 1,500 euros, went to Dr.-Ing. Björn Dusza, who wrote his thesis with the title "Context-Aware Battery Lifetime Modeling for Next Generation Wireless Networks" as part of the DFG SFBs 876 "Datenanalyse unter Ressourcenbeschränkungen". With his research, Dr. Dusza puts the terminal device at the heart of analysis and stochastic modeling of all substantial influences on the power consumption of terminal-sided LTE communication processes. The results of his research enable network operators to measure the influence of network planning and allocation of network resources to individual terminal devices on the battery life systematically and quantitatively, for the first time.

The award for the best final paper in Dortmund was handed over to the Master's graduate Michael Baumeister. The title of his paper, which belongs to the field of the DFG research group "Schutz- und Leittechnik für zukünftige Energiesysteme", is "Leistungsbewertung von drahtlosen Zugangstechnologien zur Realisierung weitverkehrsbasierter Schutzanwendungen im Smart Grid".


Successful Operation of Networked Sensor Robots at Large Scale Operation Drill by the Fire Department


23.04.2015 – A severe traffic accident, which has led to the damage of a nearby radioactive material testing source - That was the scenario of a large scale operation drill by Dortmund's Fire Department on the site of the former Westfalenhütte. More than 150 rescue workers were on duty on April 18, 2015. For the head of operations, the key question concerning the extent of a potential danger towards citizens and rescue workers by radioactive radiation, which has been reconstructed by use of a real source, arose. The hazardous materials drill was designed in a way that the operations management was able to test a networked robot system for hazard determination of nuclear substances for the first time. The cooperating robots, which are equipped with various sensors, have been investigated since 2012 as part of the German-French research project ANCHORS.

The Communication Networks Institute of TU Dortmund as the initiator in charge provides with Prof. Wietfeld the speaker of the consortium with 16 partners. ANCHORS is, from the German side, supported by the Federal Ministry of Education and Research (BMBF). As part of the project, the Communication Networks Institute is responsible for the investigation of the highly reliable networking and control of the sensor flock. The innovative approach of the project lies within the networking of specialized robots on the ground and in the air via a novel software platform, which has been developed at TU Dortmund. The roundabout 50 guests (among others, the Federal Research Ministry as well as the Federal Offices of Civil Protection and Disaster Assistance and for Radiation Protection have been represented) were impressed by the innovations in the field of sensor technology, robotics and communication. Prof. Wietfeld sums up the outcome as follows (translated from German): "We are very happy that, with the successful large scale operation drill, it was possible to demonstrate the actual added benefit of the research, which is conducted for the support of rescue workers by networked robots at TU Dortmund."


Ph.D. Thesis about Frequency Hopping for Femtocells Successfully Finished


08.01.2015 – The institute congratulates Markus Putzke to his successful doctoral examination, which he passed in December 2014. The title of his Ph.D. thesis is "Selbstorganisierende Minimierung der Interferenz von Femtozellen in heterogenen Netzen durch zufällige Frequenzsprungverfahren". Femtocells have great potential to satisfy the enormous data growth in mobile networks. In order that femtocell networks profit of a higher areal spectral efficiency, self-organizing methods for the interference minimization are needed, which Markus Putzke has - as part of his research - developed and extensively analytically evaluated in terms of their performance ability.

Within the scope of the Ph.D. thesis, which will soon be published in the series "Dortmunder Beiträge zu Kommunikationsnetzen und -systemen" by Shaker Verlag, an increase of the signal-to-interference-plus-noise ratio of femtocell as well as macrocell users by up to 50% in comparison to conventional hopping techniques can be shown.


Collaborative Research Center with CNI-Participation Approved for 4 More Years

08.01.2015 – In the Collaborative Research Center 876 (SFB 876), the combination of data analysis (Data Mining/Big Data) with networked, embedded systems (so-called Cyber-Physical Systems) is investigated in order to solve an abundance of problems of Information Technology, Electrical Engineering, Biomedicine, Physics and Mechanical Engineering. On the one hand, embedded systems are optimized by data analysis, on the other hand, analysis algorithms can, for example, be realized with the aid of FPGAs. At this, the Communication Networks Institute is involved in two sub-projects of the SFB:

- In one sub-project (A4), resource-efficient and distributed platforms for the integrative data analysis in the context of Industry 4.0 are investigated together with experts of Logistics and Information Technology

- In another sub-project (B4), scientists of the institute work together with colleagues of the fields of Information Technology and Physics of Traffic on novel methods for dynamic traffic forecast and control in inner cities using LTE-based vehicle-to-infrastructure-communication


CNI @ Vodafone Innovation Days


13.11.2014 – We are happy to announce that CNI successfully presented two innovative solutions at Vodafone innovation days on 4th and 5th November 2014 at the Vodafone Campus in Düsseldorf, Germany. The presented solutions enable process-oriented, secure, and reliable emergency group communication between rescue fighters at incident scenes, see SLIDES. We thank Vodafone, Nokia, SmartMobileLabs, and our visitors for their collaboration and feedback.


CNI @ Vodafone Innovation Days


13.11.2014 – We are happy to announce that CNI successfully presented two innovative solutions at Vodafone innovation days on 4th and 5th November 2014 at the Vodafone Campus in Düsseldorf, Germany. The presented solutions enable process-oriented, secure, and reliable emergency group communication between rescue fighters at incident scenes, see SLIDES. We thank Vodafone, Nokia, SmartMobileLabs, and our visitors for their collaboration and feedback.


National Testival about the ISO/IEC 15118 Vehicle-to-Grid Communication Interface on October 1 and 2, 2014 at the CNI


30.09.2014 – Within the context of the energy revolution, the integration of electric mobility into the Smart Grid takes a key position. So far, electric vehicles, charging infrastructures and the distribution network behind these have been self-developed to a great extent. With this, a special challenge is the insurance of interoperability. In the international standardization process, specifications for the communication between the electric vehicle and the charging station as well as between the charging infrastructure and the distribution network are in development at present. In the course of this, the standard ISO/IEC 15118 specifies the communication protocols for AC and DC charging with Demand Side Management and automized authorization mechanisms between the electric vehicle and the charging infrastructure. In doing so, it provides the basis for the Smart Grid integration of electric vehicles.

Within the scope of the project "eNterop", which is supported by the BMWi, a conformity system is being developed, with the aid of which producers can prove their systems in terms of conformity to the communication standard ISO/IEC 15118 for AC and DC charging independently of each other. This way, the project means a first and significant step in the direction of interoperability of electric vehicles and charging infrastructures.

In the light of this project goal, the CNI hosts a project-overlapping testival in cooperation with the "eNterop" consortium consisting of Siemens AG, BMW AG, Volkswagen AG, Daimler AG, RWE AG, Continental AG, Fraunhofer (IFF & IWES) as well as of TU Dortmund (CNI). The aim of this event is to bring together experts and developers and to conduct conformity tests of first implementations of the ISO/IEC 15118 with them, with the aid of the "eNterop" testing system. At that, the exchange of experiences between the participants and the test of the respective implementations in connection with the "eNterop" ISO/IEC 15118 conformity system are in the focus of the event.


Nationales Testival zum ISO/IEC 15118 Vehicle-to-Grid Communication Interface am 1./2. Oktober 2014 beim CNI


30.09.2014 – Im Rahmen der Energiewende nimmt die Integration der Elektromobilität in das Smart Grid eine Schlüsselposition ein. Bisher wurden Elektrofahrzeuge, Ladeinfrastrukturen und das dahinterliegende Verteilnetz weitgehend eigenständig entwickelt. Eine besondere Herausforderung ist dabei die Sicherstellung der Interoperabilität. Derzeit werden in der internationalen Standardisierung Spezifikationen für die Kommunikation zwischen Elektrofahrzeug und Ladepunkt sowie zwischen Ladeinfrastruktur und Verteilnetz erarbeitet. Dabei spezifiziert der Standard ISO/IEC 15118 die Kommunikationsprotokolle für AC- und DC-Laden mit Last-Management sowie automatisierten Autorisierungsmechanismen zwischen Elektrofahrzeug und Ladeinfrastruktur. Er bildet damit die Basis für die Smart-Grid Integration von Elektrofahrzeugen.

Im Rahmen des vom BMWi geförderten Projekts »eNterop« wird ein Konformitätstestsystem entwickelt, mit dessen Hilfe Hersteller unabhängig voneinander ihre Systeme auf Konformität zum Kommunikationsstandard ISO/IEC 15118 für AC- und DC-Laden prüfen können. Damit wird durch das Projekt ein erster und wichtiger Schritt in Richtung Interoperabilität von Elektrofahrzeugen und Ladeinfrastrukturen geleistet.

Vor dem Hintergrund dieses Projektziels veranstaltet das CNI in Kooperation mit dem »eNterop« Konsortium, bestehend aus Siemens AG, BMW AG, Volkswagen AG, Daimler AG, RWE AG, Continental AG, Fraunhofer (IFF & IWES) sowie der TU Dortmund (CNI) ein projektübergreifendes Testival. Ziel der Veranstaltung ist es Experten und Entwickler zusammenzuführen und mit ihnen Konformitätstests erster Implementierungen der ISO/IEC 15118 mit Hilfe des »eNterop« Testsystems durchzuführen. Dabei stehen der Erfahrungsaustausch zwischen den Teilnehmern und der Test der jeweiligen Implementierungen in Verbindung mit dem »eNterop« ISO/IEC 15118 Konformitätstestsystem im Mittelpunkt der Veranstaltung.


DFG Research Group Extended


21.08.2014 – The demands to energy grids are continually becoming more complex because of the use of renewable sources of energy - and with that also the demands to their management, surveillance and their safety. During the last three years, the interdisciplinary DFG research group 1511 has developed innovative safety and guidance systems for future energy systems. The results of this research were presented to the peer reviewers of the DFG as part of an inspection with the result that the research project has been extended for three more years.

As it has been during the first period, Prof. Wietfeld also leads the two subprojects concerning the hybrid simulation of energy grids and communication networks as well as the research on tolerant and real-time capable information and communication networks during the second period of the research group. In the scope of another subproject, he will be in charge of the investigation of new communication solutions for the peripheral agent-based coordination of power flow and voltage control.


DFG Forschergruppe verlängert


21.08.2014 – Die Anforderungen an die Energienetze werden durch den Einsatz regenerativer Energiequellen immer komplexer – und damit auch die Anforderungen an ihre Steuerung, Überwachung und ihren Schutz. Die interdisziplinäre DFG Forschergruppe 1511 hat in den vergangenen drei Jahren innovative Schutz- und Leitsysteme für die Energiesysteme der Zukunft entwickelt. Die Ergebnisse dieser Arbeiten wurden im Rahmen einer Begehung erfolgreich den Gutachtern der DFG vorgestellt, sodass das Forschungsprojekt nun um weitere drei Jahre verlängert wurde.

Wie bereits in der ersten Phase, leitet Prof. Wietfeld auch in der zweiten Phase der Forschergruppe die beiden Teilprojekte zur Hybridsimulation von Energie- und Kommunikationsnetzen sowie zur Erforschung fehlertoleranter und echtzeitfähiger Informations- und Kommunikationsinfrastrukturen. Zusätzlich wird er im Rahmen eines weiteren Teilprojektes die Erforschung neuer Kommunikationslösungen für die dezentrale, agenten-basierte Koordinierung von Leistungsfluss- und Spannungsregelungen federführend übernehmen.


CNI with Vehicle-to-Grid Demonstrator at W3C Workshop on "Web of Things" in Berlin


17.07.2014 – At the "W3C Workshop on Web of Things - Enablers and Services for an open Web of Devices", which took place on June 25 and 26, 2014 in Berlin, the CNI presented its research concerning ISO/IEC 15118 standardization for the Vehicle-to-Grid (V2G) Communication Interface. The workshop addressed future research by the W3C (World Wide Web Consortium) for the Web of Things. Assuming that there is more and more networking in the Internet of Things, current issues of how the value creation process of underlying data in the Web of Things can be designed technologically. At that, the integration of electric vehicles into smart grids is a concrete case of application, in which W3C web technologies from the area of Web of Things come into effect.

The CNI is part of the development of the V2G Communication Interface as part of the ISO/IEC 15118 Joint Working Group since years, supported the specification process based on web technologies and leads the Working Group concerned with the development of conformance test standards. For demonstration purposes, a prototype which has been developed by the CNI as part of the eNterop project on the basis of these web technologies has been presented at the W3C Workshop. This prototype demonstrates the communication interface between electric vehicle and charging infrastructure on the basis of ISO/IEC 15118-2 and -3.


CNI mit Vehicle-to-Grid Demonstrator auf dem W3C Workshop on "Web of Things" in Berlin


17.07.2014 – Das CNI präsentierte auf dem "W3C Workshop on Web of Things - Enablers and Services for an open Web of Devices" am 25. und 26. Juni 2014 in Berlin seine Arbeiten im Rahmen der ISO/IEC 15118 Standardisierung für das Vehicle-to-Grid (V2G) Communication Interface. Der Workshop adressierte die zukünftigen Arbeiten des W3C (World Wide Web Consortium) für das Web of Things. Ausgehend von einer zunehmenden Vernetzung im Internet of Things wurden aktuelle Fragestellungen behandelt, wie der Wertschöpfungsprozess zugrundeliegender Daten im Web of Things technologisch gestaltet werden kann. Dabei stellt die Integration von Elektrofahrzeugen in intelligente Stromnetze einen konkreten Anwendungsfall dar, in dem W3C Web Technologien aus dem Web of Things Umfeld zum Tragen kommen.

Das CNI ist seit Jahren an der Entwicklung der V2G Kommunikationsschnittstelle im Rahmen der ISO/IEC 15118 Joint Working Group beteiligt und unterstützte den Spezifikationsprozess basierend auf Web Technologien und leitet die Arbeitsgruppe zur Erarbeitung der Konformitätsteststandards. Zu Demonstrationszwecken wurde auf dem W3C Workshop ein durch das CNI im Rahmen des eNterop Projekts entwickelter Prototyp auf Basis dieser Web Technologien vorgestellt, der die Kommunikationsschnittstelle zwischen Elektrofahrzeug und Ladeinfrastrukturen auf Basis der ISO/IEC 15118-2 & -3 demonstriert.


Excursion to Vodafone as Part of the Lecture "Mobilfunknetze" and "Betriebswirtschaftliche Grundlagen der IKT"


03.07.2014 – Also this year, an interesting excursion could be offered to students of the lectures of the summer semester - this time to the "Vodafone Innovation Park" in Dusseldorf. Here, the approximately 20 participants had the opportunity to gain insights into the practical implementation of current trends of mobile communications. Finally, the participants had the chance to exchange face to face with experts of Vodafone while having lunch together. The excursion was especially offered for the lecture "Mobilfunknetze" (English translation: "Mobile Communication Networks") which dealt with the fundamental system properties of cellular, satellite and local networks during the summer semester. The second part of the lecture takes place from September 24 to 30, 2014. Above all, the guest lecturer Dr.-Ing. Lars Berlemann (Telekom Deutschland GmbH, Bonn) will cover the topic of advanced network concepts (LTE-Advanced, Mesh Networks, Femtocells, HetNets, etc.). Furthermore, students of the lecture "Betriebswirtschaftliche Grundlagen der IKT" (English translation: "Economic Basics of ICT" ) were also invited to attend the excursion.


Exkursion zu Vodafone im Rahmen der Vorlesungen "Mobilfunknetze" und "Betriebswirtschaftliche Grundlagen der IKT"


03.07.2014 – Auch in diesem Jahr konnte den Studierenden der Vorlesungen des Sommersemesters eine interessante Exkursion angeboten werden - diesmal zum „Vodafone Innovation Park“ in Düsseldorf. Hier konnten die ca. 20 Teilnehmer spannende Einblicke in die praktische Umsetzung aktueller Mobilfunktrends erhalten. Zum Abschluss hatten die Teilnehmer Gelegenheit, sich bei einem Mittagessen im direkten Gespräch mit den Experten von Vodafone auszutauschen. Die Exkursion wurde insbesondere im Rahmen der Vorlesung "Mobilfunknetze" angeboten, die im Sommersemester die wesentlichen Systemeigenschaften von Zellularfunknetzen, Satellitenfunknetzen und Lokalen Netzen behandelt hat. Der zweite Teil der Vorlesung findet vom 24.09 bis 30.09.2014 statt. Der Gastdozent Dr.-Ing. Lars Berlemann (Dt. Telekom, Bonn) wird vor allem fortgeschrittene Netzkonzepte (LTE-Advanced, Mesh Networks, Femtocells, HetNets, etc.) behandeln. Darüber hinaus hatten auch Studierende der Vorlesung "Betriebswirtschaftliche Grundlagen der IKT" die Möglichkeit an der Exkursion teilgenommen.


New European Research Project SecInCoRe Started


24.06.2014 – The European research project SecInCoRe (Secure Dynamic Cloud for Information, Communication and Resource Interoperability based on Pan-European Disaster Inventory) has successfully started with the contribution of the CNI on May 1, 2014. The aim of the project is to enhance the cross-border cooperation of police, emergency services, fire departments and other rescue organizations. For this purpose, two subject areas have been defined within the project. The first one deals with the analysis of past and current European crisis situations and deduces an information database for future operations. Within the second subject area, the development of a cloud-based Common Information Space is focused on in order to provide rescue organizations with the results and the deduced services of the first part of the project.

The first meeting of the consortium which consists of eight partners took place from June 4 to 6 in Paderborn.


Neues europäisches Forschungsprojekt SecInCoRe gestartet


24.06.2014 – Das europäische Forschungsprojekt SecInCoRe (Secure Dynamic Cloud for Information, Communication and Resource Interoperability based on Pan-European Disaster Inventory) mit Beteiligung des CNI ist am 1.5.2014 erfolgreich gestartet. Das Projekt hat zum Ziel die Zusammenarbeit von Polizei, Rettungsdiensten, Feuerwehren und sonstigen Rettungsorganisationen grenzüberschreitend zu verbessern. Hierzu wurden innerhalb des Projektes zwei Themenkomplexe definiert. Der Erste befasst sich mit der Analyse von vergangenen und aktuellen europäischen Krisensituationen und leitet eine Informationsdatenbank für zukünftige Einsätze ab. Innerhalb des zweiten Blocks steht die Entwicklung eines cloud-basierten gemeinsamen Informationsraums (Common Information Space) im Fokus um die Ergebnisse und die abgeleitenden Dienste des ersten Projektteils den Rettungsorganisationen zur Verfügung zu stellen.

Das erste Treffen des aus acht Partnern bestehenden Konsortiums fand vom 4.-6.6. in Paderborn statt.


CNI @ Vehicular Technology Conference 2014 in Seoul


23.05.2014 – Der Lehrstuhl war mit insgesamt fünf Beiträgen auf der in der Mobilfunkforschung besonders relevanten internationalen IEEE-Fachtagung Vehicular Technology Conference, die vom 18.-21. Mai 2014 in Seoul, Südkorea, stattfand, beteiligt. Das Spektrum der vorgestellten CNI-Forschungsarbeiten reichte dabei von Beiträgen zur Optimierung von 4G (LTE)-Netzen und dem Entwurf von zukünftigen 5G-Netzen bis zu dem Einsatz von Funktechnologien für vernetzte autonome Fahrzeuge und ein neuartiges Falschfahrerwarnsystem. Ebenfalls vorgestellt wurden die mit einem taiwanesischen Gastwissenschaftler erarbeiteten Ergebnisse zur Optimierung von Voice over LTE Diensten für sich schnell bewegende Fahrzeuge. Die Resonanz auf die Beiträge war sehr gut und befruchtend für die zukünftigen Forschungsarbeiten.


CNI @ Vehicular Technology Conference 2014 in Seoul


23.05.2014 – The institute provided the international IEEE Vehicular Technology Conference which is exceptionally relevant for the research of mobile communications and took place from May 18 to 21, 2014, in Seoul, South Korea, with altogether five contributions. The spectrum of the presented CNI research ranges from contributions concerning the optimization of 4G (LTE) networks and the draft of future 5G networks to the application of radio technologies for networked autonomous vehicles and an innovative warning system for wrong-way drivers.

Likewise, the results which have been elaborated in cooperation with a Taiwanese guest researcher concerning the optimization of Voice over LTE services for fast-moving vehicles have been presented. Responses to the contributions were very good and prolific for future research.


ComNets-Absolventenpreis 2014 für Dennis Kaulbars


24.03.2014 – Am 14.3.2014 wurde auf dem ComNets--Workshop an der RWTH Aachen der diesjährige Preis für die beste Abschlussarbeit am Standort TU Dortmund an Dennis Kaulbars, M.Sc., vergeben. In seiner Arbeit mit dem Titel "Fair and Energy-Efficient Dynamic Scheduling for Heterogeneous Mobile Networks" hat er sich mit neuartigen Ressourcenzuweisungsverfahren für LTE-Advanced beschäftigt. Mit Hilfe der Verfahren ist es z.B. möglich, einer Gruppe von Feuerwehreinsatzkräften bei einem Dauereinsatz die Funkressourcen so zuzuweisen, dass die Batterielaufzeit der eingesetzten LTE-Endgeräte für die gesamte Gruppe optimiert wird. Zum Einsatz kommt dabei auch das am Lehrstuhl entwickelte Energiemodell für LTE CoPoMo.


ComNets Graduation Award 2014 for Dennis Kaulbars


24.03.2014 – On March 14, 2014, this year's award for the best final paper of TU Dortmund has been handed over to Dennis Kaulbars, M.Sc., at the ComNets Workshop at RWTH Aachen. In his paper with the title "Fair and Energy-Efficient Dynamic Scheduling for Heterogeneous Mobile Networks", he addresses innovative resource allocation methods for LTE-Advanced. With the help of these methods, it is, for example, possible to allocate radio resources to a group of emergency personnel in a continuous operation in such a way that the battery lifetime of the used LTE terminal devices is optimized for the whole group. Here, also the power consumption model for LTE, namely CoPoMo, which has been developed at the institute, is being used.


VDE-Award for Master's Graduates of the Institute


28.02.2014 – Once a year, the VDE Rhein-Ruhr e.V. awards junior engineers for excellent bachelor's and master's degrees. Also this year, the organization honored excellent degrees and continued its active dedication to young engineers. The solemn ceremony took place at the trade fair "E-world" in Essen on February 12, 2014, for the first time. For TU Dortmund, David Öhmann, whose master thesis "Kooperatives Verbindungsmanagement von heterogenen Funkzugangssystemen im Automobilumfeld" was supervised by the CNI and collaborated with BMW in Munich, has been awarded.


VDE Preis für Master-Absolventen des Lehrstuhls


28.02.2014 – Alljährlich vergibt der VDE Rhein-Ruhr e.V. den Preis für herausragende Bachelor- und Masterabschlüsse an Nachwuchsingenieure. Auch in diesem Jahr zeichnete der Verband wieder hervorragende Studienabschlüsse aus und setzte damit sein aktives Engagement für Jung-Ingenieure fort. Die feierliche Preisverleihung fand erstmalig im Rahmen der Messe „E-World“ in Essen am 12. Februar 2014 statt. Für die TU Dortmund wurde David Öhmann ausgezeichnet, dessen in Zusammenarbeit mit BMW, München, durchgeführten Masterarbeit "Kooperatives Verbindungsmanagement von heterogenen Funkzugangssystemen im Automobilumfeld" durch das CNI betreut wurde.


Erfolgreicher Abschluss der Promotion von Björn Dusza im SFB 876


28.02.2014 – Aufgrund des stark ansteigenden Datenverkehrs im Mobilfunk rückt der Einfluss der intensiven Mobilfunknutzung auf die Batterielaufzeit der Endgeräte stärker in den Fokus von Anwendern, Anwendungsprogrammierern und Netzbetreibern. Basierend auf dem von Björn Dusza entwickelten neuen kontextsensitiven Energiemodell (CoPoMo) können quantitative Analysen des Zusammenhanges zwischen Ressourcenzuweisung durch das Netz und Batterielaufzeit ermöglicht werden. Eine Erweiterung des Modells zur Untersuchung von LTE-Advanced Systemen zeigt, dass die CoPoMo zugrundeliegenden Ansätze auch für zukünftige Mobilfunkgenerationen anwendbar sind. Das vorgestellte analytische Modell konnte durch realitätsnah modellierte Simulationen und Experimente mit spezifischen Laboraufbauten validiert werden. CoPoMo ist ein wesentliches Ergebnis des TP A4 des Dortmunder SFB 876.


Successful Completion of Björn Dusza's Doctoral Studies in the Collaborative Research Center 876


28.02.2014 – Due to strongly increasing data traffic in mobile communications, the influence of the intensive use of mobile services on the battery life of terminal devices comes to the fore for users, application developers and network operators. Based on the new Context-Aware Power Consumption Model (CoPoMo) developed by Björn Dusza, quantitative analyses of the correlation between network resource allocation and battery lifetime can be enabled. An extension of the model for investigating LTE-advanced systems shows that the approaches, upon which CoPoMo is based, are also applicable for future generations of mobile communications. The validation of the presented analytical model was conducted with the aid of realistically modeled simulations and experiments with specific laboratory set-ups. CoPoMo is a substantial outcome of the sub-project A4 of Dortmund's Collaborative Research Center 876.


tu>startup award: Gründerteam des Lehrstuhls gewinnt ersten Platz


10.01.2014 – Höhepunkt des tu>start-up Jahresempfangs am 9.1.2014 war die Verleihung des tu>startup AWARD für die besten Gründerinnen und Gründer des Jahres aus der TU Dortmund. Das Unternehmen comnovo GmbH mit Sitz in Dortmund, das im März 2013 aus dem Lehrstuhl heraus gegründet wurde, ermöglicht es mit Hilfe eines funkbasierten Warnsystems, die Risiken für Kollisionen zwischen schweren Fahrzeugen und Personen im innerbetrieblichen Verkehr drastisch zu reduzieren. Wie Albrecht Ehlers, der Kanzler der TU Dortmund, bei der Preisvergabe betonte, waren neben dem hohen wissenschaftlichen Anspruch das Wachstums- und Arbeitsplatzpotenzial, die Qualität der Alleinstellungsmerkmale und die gesellschaftliche Relevanz für die Auszeichnung ausschlaggebend.


tu>startup award: Founding Team of the Institute Wins the First Prize


10.01.2014 – The highlight of the tu>startup AWARD's annual reception on January 9, 2014, was the presentation of the tu>startup AWARD for TU Dortmund's best founders of the year. Thanks to Comnovo GmbH, a spin-off of the institute which is located in Dortmund and was founded in March 2013, it is possible to reduce the risks of collisions between heavy mobile vehicles and humans in industrial environments drastically with the aid of radio-based warning systems. As Albrecht Ehlers, the Chancellor of TU Dortmund, pointed out during the festivities, the key criteria for winning the award had been the high scientific requirements together with the potential for growth and employment, the quality of uniqueness and the relevance for society.


Project Group at the CNI in the Summer Semester


03.01.2014 – The CNI offers students the possibility to join the project group "Postbote 4.0 - die moderne Luftpost" (English translation: "Postman 4.0 - the modern airmail") in the summer semester. Amazon and DHL have announced the use of UAVs for the transportation of deliveries. The scheme puts high requirements on the navigation and communication of the UAVs so that adequate communication solutions need to be developed. Furthermore, UGVs have to be utilized additionally for in-house deliveries. A combined approach of autonomous UAVs and UGV is therefore addressed in this project group. Further information is available on the project groups website of the department.


Projektgruppe am CNI im Sommersemester


03.01.2014 – Das CNI bietet im Sommersemester die Projektgruppe "Postbote 4.0 - die moderne Luftpost" an. Amazon und DHL haben den Einsatz von UAVs zum Transport von Lieferungen angekündigt. Das Vorhaben stellt an Steuerung und Kommunikation der UAVs hohe Anforderungen, sodass adäquate Kommunikationslösungen zu entwickeln sind. Für Inhouse-Anlieferungen müssen zudem zusätzlich UGVs eingesetzt werden. Ein kombinierter Ansatz aus autonomen UAVs und UGVs wird daher in dieser Projektgruppe adressiert. Weitere Informationen sind auf der Fakultätswebseite Projektgruppen zu finden.


Absolventin des Lehrstuhls mit Jahrgangsbestenpreis ausgezeichnet


20.12.2013 – Die Informatikstudentin Sarah Gillet wurde für ihre, am Lehrstuhl für Kommunikationsnetze durchgeführte Bachelorarbeit mit dem Titel „Kommunikationssensitive Navigationsplanung für agentenbasierte UAV Schwärme“ von der Gesellschaft der Freunde der Technischen Universität Dortmund e.V. mit dem Jahrgangsbestenpreis ausgezeichnet. Die Arbeit wurde in Kooperation mit Prof. Dr. Heiko Krumm (LS IV) durchgeführt.

Die Einsatzplanung des im Rahmen der Arbeit untersuchten, vernetzten Robotiksystems erfolgt auf Basis dezentraler Bieter- und Wahlverfahren. Durch das weitgehend selbstorganisierende Verhalten der Messrobotor sollen Einsatzkräfte in Katastropheneinsätze optimal unterstützt werden, z.B. um Verschüttete schnell zu entdecken oder Schadstoffbelastungen zu messen, ohne dafür die Retter selbst in Gefahr zu bringen.


ITG-Preise 2013 für Niklas Goddemeier, Kai Daniel und Christian Wietfeld


06.12.2013 – Für ihre Forschungsarbeiten im Bereich der vernetzten Robotiksysteme erhielten Niklas Goddemeier, Dr.-Ing. Kai Daniel und Prof. Dr.-Ing. Christian Wietfeld am 12.11.2013 in der Berlin-Brandenburgischen Akademie der Wissenschaften in Berlin die begehrten ITG-Preise 2013 der Informationstechnischen Gesellschaft im VDE.

Der ITG-Preis wird jährlich bundesweit ausgeschrieben und für herausragende Veröffentlichungen verliehen, in diesem Fall für einen Beitrag zum international renommierten IEEE Journal on Selected Areas of Communications.


Best Paper Award für Brian Niehöfer, Florian Schweikowski und Christian Wietfeld


26.11.2013 – Mit dem Beitrag "Smart Constellation Selection for Precise Vehicle Positioning in Urban Canyons using a Software-Defined Receiver Solution" konnten Brian Niehöfer, Florian Schweikowski und Christian Wietfeld beim 20th IEEE Symposium on Communications and Vehicular Technology (SCVT) den begehrten Best Student Paper Award gewinnen.

Der im Rahmen des Sonderforschungsbereiches 876, Teilprojekt B4 und des Projektes Airbeam entstandene Beitrag behandelt eine Ressourcen-effiziente Genauigkeitssteigerung für globale Satellitennavigationssysteme (Global Navigation Satellite System - GNSS). Umsetzung und Performanz der Smart Constellation Selection wurde anhand eines eigens entwickelten Software-Defined GNSS Receivers in mehr als 500 Messungen mit zwei Georeferenzpunkten auf dem Campus der Technischen Universität Dortmund quantifiziert. Anwendungsbeispiele Beispiele sind eine genauere Verkehrsprognose durch das Erfassen von spurspezifischen Events (Tagesbaustelle etc.) im Straßenverkehr oder Georouting-Algorithmen für Unmanned Aerial Vehicles (UAVs).


Erfolgreiches Review des EU FP7 Projekts e-DASH


14.11.2013 – Am 24.10.2013 wurden die Zwischenergebnisse des im 7. Rahmenprogramm geförderten EU Projekts e‑DASH - Electricity Demand and Supply Harmonization for EVs in der Volkswagen Arena in Wolfsburg erfolgreich vorgestellt.Im Projekte-DASH erforschen unter der Leitung der Volkswagen AG insgesamt 14 internationale Partner die Einbindung von Elektrofahrzeugflotten in zukünftige europäische Energienetze.

Das CNI verantwortet im Projekt den Entwurf, die Evaluierung und Optimierung einer neuartigen Telematikschnittstelle zwischen Elektrofahrzeug und OEM Backend System. Mittels dieser Telematikschnittstelle sollen wertvolle Informationen über Ladeprozesse von Elektrofahrzeugen gewonnen werden. Über eine Elektrofahrzeugflotte hinweg soll mit der Schnittstelle die Erbringung von Ausgleichsenergie unter Berücksichtigung von Energienetzanforderungen gesteuert werden. Zu Demonstrationszwecken wurde während des 24-Monats-Reviews ein durch das CNI entwickelter Prototyp vorgestellt, der die Anbindung an ein derartiges Backend System mit Standards zur Ladekommunikation wie IEC 61851-1 und ISO/IEC 15118 in Einklang bringt. Weitere Informationen zum e-DASH Projekt sind unter www.edash.eu verfügbar.


Abschluss des BMBF-Projekts Sec 2 am CNI


21.10.2013 – Das BMBF Forschungsprojekt Sec2 – Secure Ad-hoc On Demand Virtual Private Storage – konnte am 16. Oktober im Rahmen einer Abschlusspräsentation erfolgreich präsentiert werden. Das Projekt hat zum Ziel ein neuartiges Sicherheitskonzept für Cloud Computing für mobile Endgeräte bereitzustellen. Hierbei werden die Datenpakete so verschlüsselt, dass sie auf dem gesamten Weg vom Sender über einen möglichen Cloud Service bis hin zum Empfänger sicher versendet werden können.

Teilprojekt des CNI war die Entwicklung eines mobilen Kommunikationssystems für sichere nahtlose Dienstnutzung in einer heterogenen Netzumgebung. Dieses hat zum Ziel die Verfügbarkeit von Diensten für den mobilen Nutzer zu erhöhen. In diesem Rahmen wurden insbesondere vertikale Handoverlösungen und –algorithmen erfolgreich entwickelt und analysiert.

Weitere Informationen zum Gesamtprojekt sind unter http://www.sec2.org/ zu finden.


Promotion zu Ad-hoc-Netzen für das Rettungswesen erfolgreich abgeschlossen


01.10.2013 – Der Lehrstuhl gratuliert Herrn Dr.-Ing. Andreas Wolff herzlich zur erfolgreich abgeschlossenen Promotion. In seiner Dissertation "Entwurf und Leistungsbewertung von Ad-hoc-Kommunikationsnetzen für den Katastrophenschutz" werden verschiedene Lösungsansätze vorgestellt, die es den Rettungskräften durch den Einsatz von angepassten Protokollen bzw. eines neuartigen Interferenzvermeidungsalgorithmus ermöglichen, in einem frei verfügbaren WLAN-Frequenzband zuverlässige und breitbandiges Kommunikationsverbindungen aufzubauen.