Cyber-Physical Systems Group

"Making the interconnected world work in a flexible and efficient, but safe and reliable manner to the benefit of society"

Cyber-physical Systems that combine the physical world with the virtual world are starting to play an ever more important role in our daily lives. In this research group, we're looking at the fundamental concepts and challenges to realize the vision of an interconnected world. In particular, we focus on industrial communication systems.

In contrast to human-to-human communication, communication between machines requires a fundamentally new approach. While humans are inherently able to cope with imperfections in communication, machines require predictability. This covers aspects of correctness, latency, and context sensitivity, but also new sensing paradigms.

In our group, we especially focus on (safety-)critical industrial applications (Industry 4.0), but also on enabling new simulation methodologies for complex networked systems. Solving the fundamental challenges in these areas therefore enables the Internet of Everything.

Hot Topics

  • In-network processing techniques for industrial control
    • Co-design approaches
    • Predictable system behavior
    • Theoretical and practical limits
  • Low-latency ultra-reliable wireless systems
    • Network design
    • Reliability-enhancing strategies
    • Theoretical and practical limits
  • Systems engineering and tool development
    • Replacement of Expected Values (mean), with hard guarantees
    • Guided design

Methodology and Tools

To convince stakeholders, new approaches need a solid base in theory, but – more importantly – also need validation and demonstration in practical prototypes. This leads to the following design circle.

  1. Requirements analysis
  2. Analytical studies using abstract models
  3. Simulations and/or verification
  4. Real-world experiments
  5. Start over

Projects

Current Projects

  • Internet of Production: Technical foundations enabling cross-domain collaboration in production
    (Interdisciplinary Cluster of Excellence)
  • REFLEXES: A Co-Designed Architecture for In-Network Control
    (DFG within Priority Program 1914 "Cyber-Physical Networking")

Selected Past Projects

  • CONSENT: Conformance-driven and Auto-configured Security for Home and Industrial Networks
    (within the NRW Postgraduate Training Programme)
  • FootPath: Infrastructure-less indoor navigation on smartphones
  • HODRIAN: Development of a frequency agile, decentralized, reliable wireless system
  • KoI: Development of a centralized, reliable, 1ms wireless system
  • MemoSim: Avoiding of Redundant Computations in Simulation Parameter Studies by Memoization
    (DFG project)
  • PREserv: Privacy Enhanced Sensing, Encoding, Relaying & Visualization
  • Psychologist in a Pocket: Mental health (depression) screening on smartphones
  • RatPack: Analysis of animal ecological and social networks with programmable sensor nodes
  • WARPsim: A code-transparent simulation environment for WARP devices

Available Theses

The Cyber-Physical Systems Group always has a range of thesis topics available for motivated and talented students. An excerpt of available theses can be seen from inside the RWTH University network.

Group publications

26.
Proceedings of the 18th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, Cancún, Mexico (MSWiM'15), page 291-300.
Publisher: ACM, New York, NY
November 2015
25.
40th IEEE Conference on Local Computer Networks (LCN), Clearwater Beach, USA, page 19-27.
Publisher: IEEE,
October 2015
24.
ITG-Fachtagung "Zukunft der Netze 2015" – Poster Session, Tübingen, Germany
Publisher: VDE,
September 2015
23.
Proceedings of the 43rd ACM SIGCOMM Conference (SIGCOMM '15), London, United Kingdom
Publisher: ACM,
August 2015
22.
12th IEEE International Conference on Sensing, Communication, and Networking (SECON 2015), Seattle, USA, page 256-264.
Publisher: IEEE,
June 2015
21.
16th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks: Demos (IEEE WoWMoM 2015 - Demos), Boston, USA
Publisher: IEEE,
June 2015
20.
Proceedings of the 3rd ACM SIGSIM/PADS Conference on Principles of Advanced Discrete Simulation (SIGSIM-PADS’15), London, United Kingdom, page 73-74.
Publisher: ACM, New York, NY
June 2015
19.
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
18.
Di Li, Zhichao Lin, Mirko Stoffers, and James Gross
Proc. of the 14th International IFIP TC6 Networking Conference (NETWORKING'15), Toulouse, France
Publisher: IFIP, Laxenburg, Austria
May 2015
17.
Proc. of 2nd International Conference on Networked Systems, Demonstrations (NetSys15), page 1--3.
Publisher: IEEE,
March 2015
16.
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
15.
Proceedings of the 9th ACM MobiCom Workshop on Challenged Networks (CHANTS 2014), Maui, USA, page 1-8.
Publisher: ACM,
September 2014
ISBN: 978-1-4503-3071-8
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