Latency- And Resilience-aware Networking (LARN)


This project is part of the DFG (Deutsche Forschungsgemeinschaft) priority programme SPP 1914 “Cyber-Physical Networking”. It started in October 2016 and is carried out in cooperation with Department of Computer Science 4 at Friedrich-Alexander-Universität Erlangen-Nürnberg.



We propose to develop transport channels for cyber-physical networks. Such channels need to be latency- and resilience-aware; i.e. the latency as seen by the application must be predictable and in certain limits, e.g. by balancing latency and resilience, be guaranteed. This is only possible by an innovative transport protocol stack and an appropriate fundament of operating system and low level networking support. Thereto the project unites the disciplines Operating Systems / Real-Time Processing and Telecommunications / Information-Theory.

Reliable Networking Atom (RNA) Architecture


Project target is the evolution of the PRRT (predictably reliable real-time transport) transport protocol stack towards a highly efficient multi-hop-protocol with transparent transmission segmentation. This is enabled by an interdisciplinary co-development with a latency-aware operating system kernel incl. wait-free synchronisation and the corresponding low level networking components. The statistical properties of the entire system (RNA, “reliable networking atom”) shall be optimised and documented.

software-defined networking testbed for validation of the system in a real-world wide area network scenario is available. The developed components are introduced during the workshops organised by the priority programme SPP1914 “Cyber-physical Networking” and is made available to other projects during the entire run-time of the priority programme.



  • Develop a latency- and resilience-aware atomic unit for cyber-physical networks.
  • Optimise the cross-layer communication while maintaining separability.
  • Validate the approach in theory and experiments.
  • Document the statistics of the predictable quality of communication (QoC).

Solutions & Results





The publications can also be found on Google Scholar.


  • Schmidt, Andreas; Reif, Stefan; Gil Pereira, Pablo; Hönig, Timo; Herfet, Thorsten; Schröder-Preikschat, Wolfgang: “Cross-layer Pacing for Predictably Low Latency”. 6th International IEEE Workshop on Ultra-Low Latency in Wireless Networks (ULLWN), Paris, France, April 2019
  • Hönig, Timo; Herzog, Benedict; Schröder-Preikschat, Wolfgang: “Energy-Demand Estimation of Embedded Devices Using Deep Artificial Neural Networks”, 34th ACM/SIGAPP Symposium on Applied Computing (SAC), Limassol, Cyprus, April 2019
  • Gallenmüller, Sebastian; Glebke, René; Günther, Stephan; Hauser, Eric; Leclaire, Maurice; Reif, Stefan; Rüth, Jan; Schmidt, Andreas; Carle, Georg; Herfet, Thorsten; Schröder-Preikschat, Wolfgang; Wehrle, Klaus: “Enabling Wireless Network Support for Gain Scheduled Control“. 2nd International Workshop on Edge Systems, Analytics and Networking (EdgeSys), Dresden, Germany, March 2019
  • Reif, Stefan; Gerhorst, Luis; Bender, Kilian; Hönig, Timo: “Towards Low-Jitter and Energy-Efficient Data Processing in Cyber-Physical Information Systems”, 52nd Hawaii International Conference on System Sciences (HICCS), Maui, Hawaii, USA, January 2019




Student Projects & Theses

  • Kai Vogelgesang, “Fast Transparent Transmission Segmentation with Kernel-Bypass Networking”, Bachelor Thesis, April 2019
  • Lukas Bard, “Network Protocol for Video Transport in Cyber-Physical Systems”, Master Thesis, November 2017
  • Daniel Birtel, “Transparent Transmission Segmentation for Multimedia Applications”, Master Thesis, January 2017
  • Philipp Tennigkeit, “NEAT – Network Experiment Automation Tool”, Project
  • Marlene Böhmer, “Demonstration and Evaluation Platforms for Cyber-Physical Networking”, Project
  • Ashkan Taslimi, “Hybrid Error Coding for Cyber-Physical Networking”, Project

People and Partners

Timo Hönig (FAU), Adwait Datar (TUHH), Andreas Schmidt (SIC), Florian Rosenthal (KIT), Stefan Reif (FAU), Thorsten Herfet (SIC) at the “Hands-On Cyber-Physical Networks” BarCamp of the DFG SPP1914 Winter School, January 2018


BarCamp Aachen Contributors (EdgeSys2019 Paper)

  • Sebastian Gallenmüller (Technical University of Munich)
  • René Glebke, MSc. (RWTH Aachen University)
  • Dr.-Ing. Stephan Günther (Technical University of Munich)
  • Eric Hauser (Technical University of Munich)
  • Maurice Leclaire, MSc. (Technical University of Munich)
  • Jan Rüth, MSc. (RWTH Aachen University)

BarCamp “Hands-On Cyber-Physical Networking” Contributors

  • Adwait Datar, MSc. (TUHH)
  • Christine Kloock, MSc. (TUHH)
  • Florian Rosenthal, MSc. (KIT)