Ongoing Projects

Since 2024Ilmenau School of Green Electronics. Funded by Zeis Foundation.
Since 20246G Campus Ilmenau (6GCI) – Flexibly expandable 5G campus network. Funded by Ministry of Economics, Science and Digital Society Thuringia, co-financed ERDF, coordinated by Thüringer Aufbaubank.
Since 2021  (2014)DFG funded Collaborative Research Center 1053 MAKI with ~40 researchers cooperating towards the Internet of the future.
Roles: PI in subproject C2. Former Managing director (2014-2017).
Since 2021Research Council of Norway. Parrot: Privacy Engineering for Real-Time Analytics in Human-Centered Internet of Things.   
Since 2020University of Groningen: CogniGron: Groningen Cognitive Systems and Materials Center.

Selection of Finished Projects (with key publications)

2020-2023DFG-CRC Transfer project: Dyn-SDN. The project is concerned with methods for the dynamic management of reconfigurable Industrie 4.0 real-time communication networks in Software-defined infrastructures.

Christoph Gärtner, Amr Rizk, Boris Koldehofe, René Guillaume, Ralf Kundel, Ralf Steinmetz. Fast incremental reconfiguration of dynamic time-sensitive networks at runtime. Computer Networks, vol. 224, 13 pages, Elsevier, 2023. 
2017-2021Dynamische Netze. Deutsche Telekom   AG.

Ralf Kundel, Leonhard Nobach, Jeremias Blendin, Hans-Jörg Kolbe, Georg Schyguda, Vladimir Gurevich, Boris Koldehofe, Ralf Steinmetz. OpenBNG: Central Office Network Functions on Programmable Data Plane Hardware. In International Journal of Network Management, Vol. 31(e2134), 25 pages, Wiley 2021.

Ralf Kundel, Fridolin Siegmund, Jeremias Blendin, Amr Rizk, Boris Koldehofe. P4STA: High Performance Packet Timestamping with Programmable Packet Processors. In Proceedings of the IEEE/IFIP Network Operations and Management Symposium (NOMS 2020), 9 pages, IEEE.

Ralf Kundel, Amr Rizk, Jeremias Blendin, Boris Koldehofe, Rhaban Hark, Ralf Steinmetz. P4-CoDel: Experiences on Programmable Data Plane Hardware. In Proceedings of the IEEE International Conference on Communications (ICC 2021): Next-Generation Networking and Internet Symposium, 6 pages, IEEE.
2011-2014CEP in the Large. BW-Stiftung.

Ruben Mayer, Boris Koldehofe, Kurt Rothermel. Predictable Low-Latency Event Detection with Parallel Complex Event Processing.  Internet of Things Journal, vol. 2(14), pp. 274–286. 2015. IEEE. 

Beate Ottenwälder, Boris Koldehofe; Kurt Rothermel, and Umakishore Ramachandran. MCEP: A Mobility-aware Complex Event Processing System. In ACM Transactions on Internet Technology, vol. 14 (1), article 6, 24 pages, 2014. 

Boris Koldehofe, Ruben Mayer, Umakishore Ramachandran, Kurt Rothermel, and Marco Völz. Rollback-Recovery without Checkpoints in Distributed Event Processing Systems. In Proceedings of the 7th ACM International Conference on Distributed Event-Based Systems (DEBS 2013), pp. 27–38. ACM press. 

Björn Schilling, Boris Koldehofe, Kurt Rothermel and Umakishore Ramachandran. Access Policy Consolidation for Complex Event Processing. In Proceedings of the Conference on Networked Systems (NetSys 2013), pp. 92–101. IEEE.
2008-2013
Global Sensor Grid: DFG funded project within the German cluster of excellence on simulation technology (SimTech).

Andreas Benzing, Boris Koldehofe, and Kurt Rothermel. Bandwidth-Minimized Distribution of Measurements in Global Sensor Networks. In Proceedings of the 14th IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS 2014), pp. 156–170. Springer.

Andreas Benzing, Boris Koldehofe, and Kurt Rothermel. Efficient Support for Multi-Resolution Queries in Global Sensor Networks. In Proceedings of the 5th ACM International Confer­ence on COMmunication System softWAre and middleware (COMSWARE 2011), article 11, 12 pages. ACM press.

Andreas Benzing, Boris Koldehofe, and Kurt Rothermel. Multilevel Predictions for the Ag­gregation of Data in Global Sensor Networks. In Proceedings of the 14th IEEE/ACM Inter­national Symposium on Distributed Simulation and Real Time Applications (DS-RT 2010), pp. 169–178. IEEE. 
2006-2012Spontaneous Virtual Networks 1+2. BW-Stiftung.

M. Adnan Tariq, Boris Koldehofe, Kurt Rothermel. Securing broker-less publish/subscribe systems using identity-based encryption. In IEEE Transactions on Parallel and Distributed Systems, vol. 25(2), pp. 518–528, 2014. 

M. Adnan Tariq, Boris Koldehofe, Gerald Koch, Imran Khan, and Kurt Rothermel. Meeting subscriber-defined QoS constraints in publish/subscribe systems. Journal on Concurrency and Computation: Practice and Experience, vol. 23(17), pp. 2140–2153, 2011. 

Gerald Koch, Boris Koldehofe, and Kurt Rothermel. Cordies: Expressive event correlation in distributed systems. In Proceedings of the 4th ACM International Conference on Distributed Event-Based Systems (DEBS 2010), pp. 26–37, ACM press. 

Oliver Waldhorst, Christian Blankenhorn, Dirk Haage, Ralph Holz, Gerald Koch, Boris Kold­ehofe, Fleming Lampi, Christoph Mayer, and Sebastian Mies. Spontaneous Virtual Net­works: On the Road towards the Internet’s Next Generation. In IT – Information Technology Special Issue on Next Generation Internet, vol. 50(6), pp. 367–375, 2008. Oldenburg.
2008-2010
 		Distributed Hierarchical Event Processing. Industry coopera­tion with IBM.

Björn Schilling, Boris Koldehofe, Kurt Rothermel. Efficient and Distributed Rule Placement in Heavy Constraint-Driven Event Systems. In Proceedings of the 13th IEEE International Conference on High Performance Computing and Communications (HPCC 2011), pp. 355–364. IEEE. 

Björn Schilling, Boris Koldehofe, Udo Pletat, and Kurt Rothermel. Distributed Heteroge­neous Event Processing: Enhancing Scalability and Interoperability of CEP in an Industrial Context. In Proceedings of the 4th ACM International Conference on Distributed Event-Based Systems (DEBS 2010), pp. 150–159, ACM press.