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

Group Photo of the Project Group LINKED

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 The usual electric vehicle low-level-signaling through IEC 61851-1 has been replaced by modulation of wireless energy transfer.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

Christian Hägerling with Mortarboard

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

Christoph Ide with Mortarboard

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

Aerial View on the Testival Bustle

12.11.2015 – Japan and South Korea fly in electric vehicle prototypes

Each vehicle shall be able to refuel at any charging station regardless of 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.


SecInCoRe Advisory Board Meeting in Athens

Group Photo at the 2nd 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

Mohamed Sbeiti with Mortarboard

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

Group Photo in front of the Telekom Building

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

Hanno Georg with Mortarboard

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

Collage of Two Photos of the Award Winners

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

Aerial View on the Audience of the Operation

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

Markus Putzke with Mortarboard

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