Welcome!

Welcome to the Chair of Communication and Distributed Systems at RWTH Aachen University. The chair, headed by Prof. Dr.-Ing. Klaus Wehrle, conducts research in diverse areas related to computer networks and distributed systems:

  • Mobile and Wireless Networks
  • Wireless Sensor Networks
  • Network and System Reliability and Security
  • Massively Distributed Systems
  • Performance Evaluation and Hybrid Evaluation Platforms
  • Cross-Layer Techniques & Platforms

Please find here more about our …

Team
Teaching
Research

Latest News

Sep 10, 2025
COMSYS Chair Outing 2025
COMSYS Chair Outing 2025

On Wednesday, September 10, COMSYS had its annual chair outing.

Sep 8, 2025
Guest Talk by Prof. Martin Karsten: "Sustainable Software: Performance ≠ Efficiency"
Guest Talk by Prof. Martin Karsten: "Sustainable Software: Performance ≠ Efficiency"

We are pleased to announce a guest talk by Prof. Martin Karsten (University of Waterloo) on sustainable software and efficiency improvements to the Linux kernel.

Sep 2, 2025
COMSYS-led RFC 9817 Published

Request for Comments (RFC) 9817 discusses “Use Cases for In-Network Computing” and is the product of long-standing COMSYS contributions to the IRTF Computing in the Network research group

Jul 31, 2025
COMSYS @ ANRW 2025
COMSYS @ ANRW 2025

COMSYS researcher Ike Kunze attended this year’s ANRW (co-located with IETF 123) to present recent work on network tomography.

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Teaching@COMSYS

Latest Publications

Jan Pennekamp, Lennart Bader, Emildeon Thevaraj, Stefanie Berninger, Martin Perau, Tobias Schröer, Wolfgang Boos, Salil S. Kanhere, Klaus Wehrle. PRepChain: A Versatile Privacy-Preserving Reputation System for Dynamic Supply Chain Environments. Future Generation Computer Systems, vol. 175. February 2026.
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Johannes Lohmöller, Hajeong Jeon, Jael Hentschel, Klaus Wehrle, Jan Pennekamp. Between Promise and Practice: Challenges and Misperceptions of Applying Privacy Enhancing Technologies in Business Contexts. Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS ‘26), Jan 6 - Jan 9, 2026, Lahaina, HI, USA. January 2026.
Accepted
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Marlena Flüh, Soo-Yon Kim, Carolin Victoria Schneider, Sandra Geisler. FAIR GraphRAG: A Retrieval-Augmented Generation Approach for Semantic Data Analysis. Proceedings of the 16th IEEE International Conference on Knowledge Graph (ICKG ‘25), Nov 13 - Nov 14, 2025, Limassol, Cyprus. November 2025.
Accepted
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Michael Klopsch, Constantin Sander, Klaus Wehrle, Markus Dahlmanns. Time To Scan: Digging into NTP-based IPv6 Scanning. Proceedings of the ACM Internet Measurement Conference (IMC ‘25), Oct 28 - Oct 31, 2025, Madison, WI, USA. October 2025.
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Ina Berenice Fink, William Köhler, Martin Serror, Klaus Wehrle. P4Ward: Fine-Grained Behavioral Policy Enforcement for Industrial Networks. Proceedings of the 50th IEEE Conference on Local Computer Networks (LCN ‘25), Oct 14 - Oct 16, 2025, Sydney, Australia. October 2025.
Accepted
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