Klaus Wehrle (Professor)

Klaus Wehrle, Dr.-Ing., Professor





RWTH Aachen University
Chair of Communication and Distributed Systems (COMSYS, Informatik 4) 
Ahornstraße 55, building E3, office 9011
D-52074 Aachen / Germany

Phone: (+49) 241/80-21402, Fax: (+49) 241/80-22222
Email: wehrle <at> comsys.rwth-aachen.de





Email / Exam Policy

Email / Exam Policy


Exam Dates and Procedure:

Dates for oral exams are offered biweekly, every second Wednesday from 3pm till 6pm.

If you plan to do an oral exam, please follow this procedure:

  1. reserve a slot in advance at the COMSYS office (office(at)comsys.rwth-aachen.de) with mentioning your study program and the planned lectures to be examined. We will confirm the combination subsequently. Please download our examination sheet, fill it in, and keep it till you exam date.
  2. confirm the exam slot latest four weeks ahead of your exam at the COMSYS office (office(at)comsys.rwth-aachen.de). but be sure, that you are well prepared for the exam at that time.
  3. if you plan to have an oral exam with two professors, please check first the availability of slots with the ComSys office and then find a joint date with the other examiner. Then book the final date at the ComSys office.
  4. after reserving a slot please register at ZPA (Central Exam Registry, Zentrales Prüfungsamt) for the oral exam! As for all other exams, a registration with ZPA is mandatory before the exam date. Note that on our examination sheet you have to sign that you are registered with ZPA.
  5. bring the examination sheet with you on the exam day, and hand it over to us at the beginning of the exam.

For teaching related emails, please use the following mail address: teaching (at) comsys.rwth-aachen.de If you are looking for a second advisor (Zweitgutachter) for your Bachelor's / Master's thesis, please consult the following website.

For scientific, project or other research/universiy-related purposes,
please use the following address: wehrle (at) comsys.rwth-aachen.de



Klaus Wehrle is Professor of Computer Science and Head of the Communication and Distributed Systems Group (Informatik 4) at RWTH Aachen University,
He received his diploma (1999) and his doctorate (Dr.-Ing., 2002) from the University of Karlsruhe (now KIT), both with distinction. His doctoral thesis on flexible and scalable Quality of Service mechanisms for the next generation Internet was awarded the Doctoral Dissertation Prize of Südwestmetall and the FZI Doctoral Dissertation Prize (Research Center for Information Technology, FZI).

In 2002 and 2003, Klaus was a postdoctoral fellow at the International Computer Science Institute at the University of California at Berkeley (UCB).
In 2004, he received a DFG Emmy Noether (starting) grant to establish a junior research group on protocol engineering and distributed systems at the University of Tübingen. 
In 2006 he joined RWTH Aachen University as an associate professor, since 2010 as a full professor. From 2019 to 2022 he will be acting head of the Department of Computer Science at RWTH Aachen University.

His research activities focus on (but are not limited to) the engineering of network protocols, (formal) methods for protocol engineering and network analysis, network simulation, reliable communication software, and all operating system issues of networking. 
His research is mainly funded by the German Research Foundation (DFG), the European Research Council (through an ERC CoG and an ERC PoC grant), the EU, the German government (BMBF, BMWi), the state of North Rhine-Westphalia (NRW), and industrial partners.
From 2015 to 2023 he was coordinating the DFG Priority Program on Cyber-Physical Networking.
He is a member of IEEE, ACM, Sigcomm, GI (Gesellschaft für Informatik), VDE and GI/ITG-Fachgruppe KuVS.
He was/is a member of several evaluation boards of the Alexander-von-Humboldt Foundation and serves as an elected representative for communication systems at the German Research Foundation (DFG).




Proceedings of the 1st ACM SIGCOMM Workshop on Virtualized Infastructure Systems and Architectures, Barcelona, Spain, page 45--52.
Publisher: ACM Press, New York, NY, USA
August 2009
ISBN: 978-1-60558-595-6
Oscar Garcia-Morchon, Thomas Falck, Tobias Heer, and Klaus Wehrle
6th Annual International Conference on Mobile and Ubiquitous Systems (MobiQuitous 2009), Toronto Volume 1
Publisher: IEEE Press, Washington, DC, USA
July 2009
ISBN: 978-963-9799-59-2
Proceedings of the 6th Annual International Conference on Mobile and Ubiquitous Systems (MobiQuitous 2009), Toronto, ON, Canada, page 1--2.
Publisher: IEEE, New York City, NY, USA
July 2009
ISBN: 978-963-9799-59-2
Publisher: USENIX Association, Berkeley, CA, USA
April 2009
Elias Weingaertner, Christoph Terwelp, and Klaus Wehrle
ProMoX: A protocol stack monitoring framework
Electronic Communications of the EASST, 17(2009):1-10
March 2009
ISSN: 1863-2122
PIK Journal, Special Issue on Energy Aware Systems, 32(2):127-132
February 2009
ISSN: 0930-5157
Proceedings of the 11th Joint International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS/Performance 2009), 37(2):49-50
ISSN: 0163-5999
Dresden, Germany
Publisher: IEEE,
Proceedings of the Fourth ACM International Workshop on Mobility in the Evolving Internet Architecture (ACM MobiArch '09), page 43-50.
ACM Sigcomm/Sigmobile
Publisher: ACM, New York, NY, USA
Oscar Garcia-Morchon, Tobias Heer, Ludo Tolhuizen, and Klaus Wehrle
Lightweight Key Agreement and Digital Certificates for Wireles Sensor Networks
Proceedings of the 28th ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing (PODC 2009), Calgary Volume 1, page 326-327.
Publisher: ACM, New York, NY, USA
ISBN: 978-963-9799-59-2
Proceedings of the IEEE International Conference on Communications 2009 (ICC 2009), Dresden, Gemany Volume 1, page 791-796.
Publisher: Piscataway, NJ, USA, Dresden, Germany
ISBN: 978-1-4244-3435-0
Tobias Heer, Miika Komu, and Klaus Wehrle
End-Host Authentication for HIP Middleboxes (Version 2)
Document number: draft-heer-hip-midauth-02
Internet Engineering Task Force,


Stefan Götz, Christian Beckel, Tobias Heer, and Klaus Wehrle
Proceedings of the 3rd International Workshop on Self-Organizing Systems, Vienna, Austria Volume 5343/2008of Lecture Notes in Computer Science, page 287-292.
Publisher: Springer-Verlag, Tiergartenstraße 17, 69121 Heidelberg, Germany
December 2008
ISBN: 978-3-540-92156-1
Tobias Heer, Stefan Götz, Oscar Garcia-Morchon, and Klaus Wehrle
Proceedings of the 2008 ACM CoNEXT Conference, Madrid, Spain Volume 1of CoNEXT '08, page 23:1--23:12.
Publisher: ACM, New York, NY, USA
December 2008
ISBN: 978-1-60558-210-8
Proceedings of the 6th ACM conference on Embedded network sensor systems (SenSys'08), Raleigh, NC, USA, page 425--426.
Publisher: ACM, New York, NY, USA
November 2008
ISBN: 978-1-59593-990-6
Johannes Thiele, Okuary Osechas, Jó Agila Bitsch Link, and Klaus Wehrle
Proceedings of IEEE Sensors 2008, Lecce, Italy, page 709 -- 711.
Publisher: IEEE, New York City, NY, USA
October 2008
ISBN: 978-1-4244-2580-8
Simon Rieche, Bui The Vinh, and Klaus Wehrle
Proceedings of 33rd Annual IEEE Conference on Local Computer Networks (LCN 2008) , page 28-35.
Publisher: IEEE Press,
October 2008
RWTH Aachen University - Distributed Systems Group
ISBN: 978-1-4244-2412-2
Chair of Communication and Distributed Systems (ComSys), Berlin, Germany
September 2008
Okuary Osechas, Johannes Thiele, Jó Agila Bitsch Link, and Klaus Wehrle
Proceedings of the 30th Annual International IEEE Engineering in Medicine and Biology Conference, Vancouver, BC, Canada, page 538--541.
Publisher: The Printing House, Stoughton, WI, USA
August 2008
ISBN: 978-1-4244-1814-5
Jó Agila Bitsch Link, Klaus Wehrle, Okuary Osechas, and Johannes Thiele
ACM SIGCOMM 2008 Poster Proceedings, Seattle, WA, USA, page 467--468.
Publisher: ACM, New York City, NY, USA
August 2008
ISBN: 978-1-60558-175-0
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A small note for potential applicants

A small note for potential applicants

Please note:

The COMSYS Team is a very open-minded and technology-oriented research group. But we are receiving dozens of (mostly unserious spam-)applications per week. To focus on serious applications, we only accept applications sent in by non-electronic mail. Email applications will neither be processed, nor answered, nor accepted.

Email applications of any kind will be deleted immediately!

If you are seriously considering to apply for a position (researcher, PhD student, teaching assistant, internship, student research assistant) within the COMSYS Team, please spend the small amount of postage for sending your application by postal mail -- you will definitely get an answer. Many thanks for your cooperation!

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