The goal of HODRIAN is to develop reliable, wireless communication systems for industrial real-time applications. In this context, reliable data delivery with real-time guarantees in the area of milliseconds is of fundamental imporance. The developed concepts shall be applied to connect a monorail that is used in factories to transport tools and material to a central controller. Reliable real-time communication is essential to allow the monorail cars to communicate. If data delivery fails, the highly expensive cars might crash into each other. However, cable connections are not a viable alternative due to the mobility of the monorail cars.

To develop and evaluate highly-robust, wireless communication components for industrial applications (Höchstrobuste, drahtlose Kommunikationskomponenten für industrielle Anwendungen, HODRIAN) we pursue the following goals:

  • Analysis of the basic system "Token-Passing Ring" including the protocols for physical and link layer
  • Optimization w.r.t. latency, packet error rate, and complexity
  • Development and integration of an autonomous coexistence and interference management
  • Experimental evaluation of the basic system, as well as the investigated enhancements
  • Consulting industrial partners in implementation steps of field modules
  • Construction of a demonstrator in an industrial monorail


Our Team



  • Sebastian Kruse
  • Anil Thimme Gowda


  • Andreas Schumacher

Our Partners


HODRIAN is funded by the German Federal Ministry of Education and Research. Project management organization is the VDI/VDE Technik GmbH, Berlin.



 For questions regarding research and administrative aspects of the HODRIAN project, please contact:

 Christian Dombrowski

 E-Mail: christian.dombrowski[[at]]comsys.rwth-aachen.de


  For questions regarding research aspects of the HODRIAN project, please contact:

 Mirko Stoffers

 E-Mail: mirko.stoffers[[at]]comsys.rwth-aachen.de

HODRIAN Publications

Christian Dombrowski, Sebastian Junges, Joost-Pieter Katoen, and James Gross
Model-Checking Assisted Protocol Design for Ultra-reliable Low-Latency Wireless Networks
Proc. of IEEE 35th Symposium on Reliable Distributed Systems, page 307--316.
September 2016
ITG-Fachtagung "Zukunft der Netze 2015" – Poster Session, Tübingen, Germany
Publisher: VDE,
September 2015
EchoRing: A Low-Latency, Reliable Token-Passing MAC Protocol for Wireless Industrial Networks
Proc. of 21st European Wireless Conference (EW15)
Publisher: IEEE,
May 2015
ISBN: 978-3-8007-3976-9
Proc. of 2nd International Conference on Networked Systems, Demonstrations (NetSys15), page 1--3.
Publisher: IEEE,
March 2015
Andreas Schumacher, Christian Dombrowski, and James Gross
A Code-transparent MAC Simulator for WARP
Proc. of European workshop on testbed based wireless research
November 2014
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