Communication Networks Working Group



The main research focus of the ComNets group at the University of Bremen is performance analysis of communication networks and their protocols. This includes the implementation of prototypes as well as performance studies by mathematical analysis and simulation. The main keywords are: mobility support, mobile communications, wireless communications, simulation technology, rare event simulation, teletraffic engineering. Research projects are mainly funded by national and international government institutions and direct industry collaborations.

The group consists of several post-docs as well as several fully employed research assistants working on research projects and their doctoral thesis. Additionally there is a small technical and assisting team and many students working as student workers or doing their thesis.


ComNets goes on air

ComNets now has its own YouTube channel where you will find our inverted-classroom teaching videos as well as information about our research and related topics. As a first step, the videos for the inverted-classroom lecture series "Grundlagen der Informatik" (German) are available. The videos are published in the course of the ongoing lecture.

General Studies Seminar "Aspects of Sustainability"

In the seminar "Aspects of Sustainability" we will learn about the different and sometimes contradictory aspects of sustainability by viewing various documentary films (English with German subtitles) and have a discussion after each film. The seminar is part of the General Studies and open for all university members. The seminar starts on Thursday, 25th October at 18:00 hrs in lecture hall H2. More information is available here.

Presentation in Ruzena Bajcsy Lectures on Communications

The head of the Sustainable Communication Networks Department, Prof. Anna Förster, gave a presentation titled "Organic Data Dissemination in Opportunistic Networks" in the context of the lecture series "Ruzena Bajcsy Lectures on Communications" at University of Darmstadt, Germany. A summary of the event can be found here.

ComNets goes to space!

Just a couple of days ago, ComNets became partner in the European Space Agency Topical Team on Tissue Healing in Space, where it will contribute to the communication and data analysis system for innovative sensor devices.

PhD student of ComNets develops miner location system

In cooperation with the Wits mining institute in South Africa, a PhD student of the ComNets department, Idrees Zaman, is working on a system which assists miners by providing information about possible threats and supporting rescue staff to locate miners who have become lost in case of a disaster. The system is based on a wireless underground sensor network which is under development at the ComNets department. There is an article about the project in the South African newspaper "Sowetan" and a video by Wits university available on Youtube.

New General Studies seminar "Aspects of Sustainability"

A new seminar with the title "Aspects of Sustainability" is offered by the ComNets department in this winter semester. In this seminar, we will discuss the different and sometimes contradictory aspects of sustainability. We will use various materials, mainly documentaries and online readings. This seminar is part of the General Studies and open for all university members. More details can be found here.


kids4mint - ran an die Elektrotechnik!

Gerade ist die erste kids4mint Kinder-Sommerschule erfolgreich abgeschlossen! Wir hatten viel Spass, gutes Wetter und tolle Experimente zusammen gemacht. 12 Kinder im Alter von 10 bis 12 Jahren haben Motoren gebastelt, elektrotechnische Schaltungen kennengelernt und kleine Maschinen gebastelt. 

Nächstes Jahr im Sommer geht es weiter - also sofort auf die Mailing Liste setzen und gespannt bleiben!

We are member of the high-profile area Minds, Media, Machines

ComNets has become a member of the the high-profile area Minds, Media, Machines which is a cooperation between researchers of different disciplines in the topic of intelligence, cognition in autonomous agents and teams of agents in the context of mediatized worlds. More information is available under this link.

Paper about teaching Internet of Things published

We have published a paper about the concept and evaluation of our Internet of Things lecture. Details about the paper can be found here.

Prof. Förster's TECxTUHH talk now available online

Prof. Förster gave a talk with the topic "Gossiping in digital communication networks" in the 2015 TEDxTUHH event in Hamburg. The video of the talk is now available online.

The book "Introduction to Wireless Sensor Networks” finally published!

The book “Introduction to Wireless Sensor Networks” by Anna Förster has been published by Wiley and IEEE Press and is currently already available as an online version and very soon also as a hard-copy (July 2016). The online companion with slides, further information and links for purchasing is here. Comments are highly welcome!

Vortrag "Entscheidungsprozesse in Kommunikationsnetzen: Naturinspirierte Verfahren"

Im Rahmen der Ringvorlesung "Universelle Eigenschaften des Entscheidens" hält Frau Prof. Anna Förster am 11. Mai einen Vortrag zum Thema "Entscheidungsprozesse in Kommunikationsnetzen: Naturinspirierte Verfahren".


Nicht nur wir Menschen stehen ständig vor Entscheidungen, sondern auch unsere Geräte. Vor allem unsere heiss geliebten Computer stehen andauernd vor Entscheidungen, wie und wann sie welche Informationen wohin senden. Wenn ich einer Freundin eine Email schicke, gebe ich einfach eine Adresse ein. Aber wie kommt meine Email von meinem Rechner zum Rechner meiner Freundin? Findet die Email auch wirklich den kürzesten Weg dahin?

In diesem Vortrag werden wir eine Reihe von Entscheidungsprozessen für Computer & Co kennenlernen. Und zwar nicht die einfachen, trivialen Prozesse, sondern die naturinspirierten und intelligenten Prozesse. Was hat eine Ameise damit zu tun? Oder ein Vogelschwarm? Oder ein Baum? Das werden wir gemeinsam erkunden.


Der Vortrag findet statt am Mittwoch, 11. Mai, von 16 bis 18 Uhr in der Rotunde im Cartesium, Enrique-Schmidt-Str. 5, 28359 Bremen.

Talk: Pervasive Systems at a Glance

The Department of Sustainable Communication Networks had the pleasure to welcome Prof. Paul Havinga and Prof. Nirvana Meratnia from the University of Twente, Netherlands, for a Talk on Pervasive Systems.

Abstract: In this presentation, we will provide a short overview of core research themes and their related recent projects of the Pervasive Systems group. The common areas of research within Pervasive Systems are opportunistic sensing and wireless networking and  sensor data analytics. We will also show how major research and development challenges such as energy-efficienty, reliability, robustness, and accuracy, faced in these themes have been addressed and how the research results have been integrated through addressing practical deployment and development issues in real-world applications.


Prof. Paul Havinga is full professor and chair of the Pervasive Systems research group at the Computer Science department at the University of Twente in the Netherlands. He received in 2000 the 'DOW Dissertation Energy Award' for his Phd thesis. He has a broad background in various aspects of communication systems, including wireless communication, sensor networks, smart sensor systems, Cyber Physical Systems, QoS over wireless networks, reconfigurable computing, and on interconnection architectures for multiprocessor systems. The common themes in his area of research is the development of large-scale, heterogeneous, wireless, distributed systems. Research questions cover architectures, protocols, programming paradigms, algorithms, and applications. He has a significant experience as project manager in several national and international research projects on wireless sensor networks. In 2001 he initiated the first European project on wireless sensor networks EYES, and many national and international projects evolved from this. In May 2007 he received the ICT Innovation Award for the successful transfer of knowledge from university to industrial use. In June 2007 he received the "van den Kroonenberg award" for being a successful innovative entrepreneur.  


Dr. Nirvana Meratnia is associate professor in the Pervasive Systems Group at the University of Twente. Her research interests are in the area of Internet of Things (IoT), distributed sensor data analytics, (underwater) wireless sensor networks, and wearable/implantable communication and computing. The common themes in her area of research are energy-efficient, accurate, and reliable sensor data processing, reasoning, and interpretation. This goes hand in hand with requirements and limitations posed by the wireless communication being in air, in body, or underwater. This in turn requires a cross-layer optimization. She is and has been involved in many EU and national projects related to these themes. 

Free-WLAN-Spots for refugees installed

This week, two "Freifunk"-WLAN spots were installed at the NW1 and the refugee tent behind. The bandwith supports about 30 people on low-demand services like E-Mail, Whatsapp etc. Find more information on Freifunk and their free WiFi spots on their website.

Two papers accepted

Two papers accepted at OMNeT++ Summit 2015 in Zürich!  Link zu OMNeT

Winners of the Maniac Challenge 2013

Isaac Supeene from the University of Alberta, Canada (visiting the ComNets group of TZI, University of Bremen based on a student research fellowship), René Steinrücken of the Hamburg University of Technology (TUHH) and Asanga Udugama from the ComNets group of TZI, University of Bremen, won the Mainac Challenge 2013 hosted in Berlin which is a competition to better understand the cooperation and interoperability in mobile ad hoc networks (MANETs). Full article

Yasir Zaki together with Prof. Walke and Prof. Görg showing his award certificate

Award for ComNets scientist


Yasir Zaki gets the "Bernhard Walke Doctoral Graduation Award" which includes 1,500 € for his dissertation completed in 2012 with the title "Future Mobile Communications: LTE Optimization and Mobile Network Virtualization".


Office hour Anna Förster

Thursday, 11-12



MSc studies in CIT/CMM





ComNets TUHH

ComNets FFV

Minds, Media, Machines

ESA Topical Team

OMNeT++ Summit