Intern
Lehrstuhl für Informatik III

Dr. rer. nat. Stefan Geißler

Telefon (0931) 31-83134
Telefax (0931) 31-86632
E-Mail stefan.geissler@informatik.uni-wuerzburg.de
Raum A209
Anschrift

Lehrstuhl für Informatik III

Am Hubland
D-97074 Würzburg

Publications

2024[ to top ]
  • Loh, Frank ; Raffeck, Simon ; Geißler, Stefan ; Hoßfeld, Tobias: Plan the Access? Generic Hardware Independent Energy Consumption and Efficiency Model for Different LoRaWAN Channel Access Approaches. In: IEEE Internet of Things Journal, IEEE (2024)
  • Chatzieleftheriou, Livia Elena ; Gramaglia, Marco ; Garcia-Saavedra, Andres ; Gebert, Steffen ; Garc’i}a-Avilés, Ginés ; Geissler, Stefan ; Fiore, Marco ; Patras, Paul ; et al.: Towards 6G: Architectural Innovations and Challenges in the ORIGAMI Framework.. In: European Conference on Networks and Communications & 6G Summit, 2024, pp. 1–6
  • Seufert, Michael ; Dietz, Katharina ; Wehner, Nikolas ; Geißler, Stefan ; Schüler, Joshua ; Wolz, Manuel ; Hotho, Andreas ; Casas, Pedro ; et al.: Marina: Realizing ML-Driven Real-Time Network Traffic Monitoring at Terabit Scale. In: IEEE Transactions on Network and Service Management, IEEE (2024)
2023[ to top ]
  • Vomhoff, Viktoria ; Raffeck, Simon ; Gebert, Steffen ; Geissler, Stefan ; Hossfeld, Tobias: NB-IoT vs. LTE-M: Measurement Study of the Energy Consumption of LPWAN Technologies.. In: 2023 IEEE International Conference on Communications Workshops (ICC Workshops) : IEEE, 2023, pp. 403–408
  • Loh, Frank ; Hildebrand, Kathrin ; Wamser, Florian ; Geißler, Stefan ; Hoßfeld, Tobias: Machine Learning Based Study of QoE Metrics in Twitch. tv Live Streaming.. In: NOMS 2023-2023 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2023, pp. 1–7
  • Raffeck, Simon ; Geißler, Stefan ; Hoßfeld, Tobias: DBM: Decentralized Burst Mitigation for Periodic LoRa Devices Using Self-Organizing Radio Access.. In: ICC 2023-IEEE International Conference on Communications : IEEE, 2023, pp. 253–258
  • Loh, Frank ; Baur, Carina ; Geißler, Stefan ; ElBakoury, Hesham ; Hoßfeld, Tobias: Collision and Energy Efficiency Assessment of LoRaWANs with Cluster-based Gateway Placement.. In: 2023 IEEE International Conference on Communications Workshops (ICC Workshops) : IEEE, 2023, pp. 391–396
  • Geißler, Stefan ; Hoßfeld, Tobias: Performance evaluation of next-generation data plane architectures and their components.. In: NOMS 2023-2023 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2023, pp. 1–6
  • Geißler, Stefan ; Wamser, Florian ; Bauer, Wolfgang ; Gebert, Steffen ; Kounev, Samuel ; Hoßfeld, Tobias: MVNOCoreSim: A Digital Twin for Virtualized IoT-centric Mobile Core Networks. In: IEEE Internet of Things Journal, IEEE (2023)
  • Vomhoff, Viktoria ; Geissler, Stefan ; Gebert, Steffen ; Hossfeld, Tobias: Towards Understanding the Global IPX Network from an MVNO Perspective.. In: Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks (WueWoWAS’23), 2023
  • Straesser, Martin ; Geißler, Stefan ; Hoßfeld, Tobias ; Kounev, Samuel: Power to the Applications: The Vision of Continuous Decentralized Autoscaling.. In: 2023 IEEE/ACM 23rd International Symposium on Cluster, Cloud and Internet Computing Workshops (CCGridW) : IEEE, 2023, pp. 281–283
  • Loh, Frank ; Raffeck, Simon ; Geißler, Stefan ; Hoßfeld, Tobias: Paving the Way for an Energy Efficient and Sustainable Future Internet of Things.. In: Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks (WueWoWAS’23), 2023
  • Raffeck, Simon ; Geißler, Stefan ; Hoßfeld, Tobias: Towards Understanding the Signaling Traffic in 5G Core Networks.. In: Würzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks (WueWoWAS’23), 2023
  • Grigorjew, Alexej ; Geißler, Stefan ; Diederich, Philip ; Hoßfeld, Tobias ; Kellerer, Wolfgang: Resilience in Time-Sensitive Networking: An Overview and Open Research Directions.. In: 2023 13th International Workshop on Resilient Networks Design and Modeling (RNDM) : IEEE, 2023, pp. 1–8
  • Loh, Frank ; Mehling, Noah ; Geißler, Stefan ; Hoßfeld, Tobias: Efficient graph-based gateway placement for large-scale LoRaWAN deployments. In: Computer Communications vol. 204, Elsevier (2023), pp. 11–23
  • Loh, Frank ; Pimpinella, Andrea ; Geißler, Stefan ; Hoßfeld, Tobias: Uplink-based Live Session Model for Stalling Prediction in Video Streaming.. In: NOMS 2023-2023 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2023, pp. 1–9
  • Geißler, Stefan: Leistungsbewertung von Data Plane Architekturen der nächsten Generation sowie ihrer Komponenten, Gesellschaft für Informatik eV (2023)
2022[ to top ]
  • Raffeck, Simon ; Geissler, Stefan ; Krolikowski, Michael ; Gebert, Steffen ; Hoßfeld, Tobias: Data usage in iot: A characterization of gtp tunnels in m2m mobile networks.. In: NOMS 2022-2022 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2022, pp. 1–6
  • Loh, Frank ; Mehling, Noah ; Geißler, Stefan ; Hoßfeld, Tobias: Simulative Performance Study of Slotted Aloha for LoRaWAN Channel Access.. In: NOMS 2022-2022 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2022, pp. 1–9
  • Loh, Frank ; Raffeck, Simon ; Geißler, Stefan ; Hoßfeld, Tobias: Generic Model to Quantify Energy Consumption for Different LoRaWAN Channel Access Methods.. In: 2022 18th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) : IEEE, 2022, pp. 290–295
  • Vomhoff, Viktoria ; Geissler, Stefan ; Loh, Frank ; Bauer, Wolfgang ; Hossfeld, Tobias: Characterizing Mobile Signaling Anomalies in the Internet-of-Things.. In: NOMS 2022-2022 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2022, pp. 1–6
  • Hoßfeld, Tobias ; Raffeck, Simon ; Loh, Frank ; Geißler, Stefan: Analytical model for the energy efficiency in low power iot deployments.. In: 2022 IEEE 8th International Conference on Network Softwarization (NetSoft) : IEEE, 2022, pp. 19–24
  • Loh, Frank ; Wamser, Florian ; Poignée, Fabian ; Geißler, Stefan ; Hoßfeld, Tobias: Youtube dataset on mobile streaming for internet traffic modeling and streaming analysis. In: Scientific Data vol. 9, Nature Publishing Group UK London (2022), Nr. 1, p. 293
  • Raffeck, Simon ; Geißler, Stefan ; Hoßfeld, Tobias: DBM: Decentralized Burst Mitigation for Self-Organizing LoRa Deployments.. In: Würzburg Workshop on Next-Generation Communication Networks (WueWoWas’22), 2022
  • Metzger, Florian ; Geißler, Stefan ; Grigorjew, Alexej ; Loh, Frank ; Moldovan, Christian ; Seufert, Michael ; Hoßfeld, Tobias: An introduction to online video game QoS and QoE influencing factors. In: IEEE Communications Surveys & Tutorials vol. 24, IEEE (2022), Nr. 3, pp. 1894–1925
  • Vomhoff, Viktoria ; Geissler, Stefan ; Loh, Frank ; Bauer, Wolfgang ; Hossfeld, Tobias: Characterizing mobile signaling anomalies in the Internet-of-Things.. In: NOMS 2022-2022 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2022, pp. 1–6
  • Loh, Frank ; Geißler, Stefan ; Hoßfeld, Tobias: LoRaWAN Network Planning in Smart Environments: Towards Reliability, Scalability, and Cost Reduction.. In: Würzburg Workshop on Next-Generation Communication Networks (WueWoWas’22), 2022
  • Vomhoff, Viktoria ; Geißler, Stefan ; Hoßfeld, Tobias: Identification of Signaling Patterns in Mobile IoT Signaling Traffic.. In: Würzburg Workshop on Next-Generation Communication Networks (WueWoWas’22), 2022
  • Metzger, Florian ; Geißler, Stefan ; Grigorjew, Alexej ; Loh, Frank ; Moldovan, Christian ; Seufert, Michael ; Hoßfeld, Tobias: An introduction to online video game qos and qoe influencing factors. In: IEEE Communications Surveys & Tutorials vol. 24, IEEE (2022), Nr. 3, pp. 1894–1925
  • Loh, Frank ; Mehling, Noah ; Geißler, Stefan ; Hoßfeld, Tobias: Graph-based gateway placement for better performance in LoRaWAN deployments.. In: 2022 20th Mediterranean Communication and Computer Networking Conference (MedComNet) : IEEE, 2022, pp. 190–199
  • Raffeck, Simon ; Geissler, Stefan ; Krolikowski, Michael ; Gebert, Steffen ; Hoßfeld, Tobias: Data Usage in IoT: A Characterization of GTP Tunnels in M2M Mobile Networks.. In: NOMS 2022-2022 IEEE/IFIP Network Operations and Management Symposium : IEEE, 2022, pp. 1–6
2021[ to top ]
  • Geissler, Stefan ; Lange, Stanislav ; Linguaglossa, Leonardo ; Rossi, Dario ; Zinner, Thomas ; Hossfeld, Tobias: Discrete-time modeling of NFV accelerators that exploit batched processing. In: ACM Transactions on Modeling and Performance Evaluation of Computing Systems vol. 6, ACM New York, NY (2021), Nr. 3, pp. 1–27
  • Geissler, Stefan ; Lange, Stanislav ; Hossfeld, Tobias ; Tran-Gia, Phuoc: Discrete-time Analysis of Multicomponent GI/GI/1 Queueing Networks (2021)
  • Loh, Frank ; Geißler, Stefan ; Schaible, Fabian ; Hoßfeld, Tobias: Talk to Me: Investigating the Traffic Characteristics of Amazon Echo Dot and Google Home.. In: 2020 IEEE Eighth International Conference on Communications and Electronics (ICCE) : IEEE, 2021, pp. 521–526
  • Geissler, Stefan ; Lange, Stanislav ; Hossfeld, Tobias ; Tran-Gia, Phuoc: Discrete-time Analysis of Multicomponent GI/GI/1 Queueing Networks.. In: Conference on Networked Systems 2021, 2021
  • Geissler, Stefan ; Wamser, Florian ; Bauer, Wolfgang ; Krolikowski, Michael ; Gebert, Steffen ; Hoßfeld, Tobias: Signaling traffic in internet-of-things mobile networks.. In: 2021 IFIP/IEEE International Symposium on Integrated Network Management (IM) : IEEE, 2021, pp. 452–458
2019[ to top ]
  • Skwarek, Volker ; Reher, Julian ; Geißler, Stefan ; Zinner, Thomas: Automation und Digitalisierung: Potenzial und Einsatz von Blockchain-und Distributed-Ledger-Technologien in der Automatisierungstechnik, ZVEI (2019)
  • Wamser, Florian ; Tran-Gia, Phuoc ; Geißler, Stefan ; Hoßfeld, Tobias: Modeling of traffic flows in internet of things using renewal approximation. In: Advances in Optimization and Decision Science for Society, Services and Enterprises: ODS, Genoa, Italy, September 4-7, 2019, Springer International Publishing (2019), pp. 483–492
  • Iffländer, Lukas ; Geißler, Stefan ; Walter, Jürgen ; Beierlieb, Lukas ; Kounev, Samuel: Addressing Shortcomings of Existing DDoS Protection Software Using Software-Defined Networking. In: Softwaretechnik-Trends Band 39, Heft 3, Gesellschaft für Informatik eV (2019)
  • Geissler, Stefan ; Lange, Stanislav ; Wamser, Florian ; Zinner, Thomas ; Hoßfeld, Tobias: KOMon—Kernel-based online monitoring of VNF packet processing times.. In: 2019 International Conference on Networked Systems (NetSys) : IEEE, 2019, pp. 1–8
  • Iffländer, Lukas ; Geißler, Stefan ; Walter, Jürgen ; Beierlieb, Lukas ; Kounev, Samuel: Addressing Shortcomings of Existing DDoS Protection Software Using Software-Defined Networking, Gesellschaft für Informatik eV (2019)
  • Geissler, Stefan ; Herrnleben, Stefan ; Bauer, Robert ; Grigorjew, Alexej ; Zinner, Thomas ; Jarschel, Michael: The power of composition: Abstracting a multi-device SDN data path through a single API. In: IEEE Transactions on Network and Service Management vol. 17, IEEE (2019), Nr. 2, pp. 722–735
  • Lange, Stanislav ; Linguaglossa, Leonardo ; Geissler, Stefan ; Rossi, Dario ; Zinner, Thomas: Discrete-time modeling of nfv accelerators that exploit batched processing.. In: IEEE INFOCOM 2019-IEEE Conference on Computer Communications : IEEE, 2019, pp. 64–72
  • Geissler, Stefan ; Prantl, Thomas ; Lange, Stanislav ; Wamser, Florian ; Hossfeld, Tobias: Discrete-time analysis of the blockchain distributed ledger technology.. In: 2019 31st International Teletraffic Congress (ITC 31) : IEEE, 2019, pp. 130–137
2018[ to top ]
  • Nguyen-Ngoc, Anh ; Raffeck, Simon ; Lange, Stanislav ; Geissler, Stefan ; Zinner, Thomas ; Tran-Gia, Phuoc: Benchmarking the ONOS controller with OFCProbe.. In: 2018 IEEE Seventh International Conference on Communications and Electronics (ICCE) : IEEE, 2018, pp. 367–372
  • Geissler, Stefan ; Zinner, Thomas: Tablevisor 2.0: hardware-independent multi table processing. In: KuVS-Fachgespräch Fog Computing 2018 (2018), p. 33
  • Nguyen-Ngoc, Anh ; Lange, Stanislav ; Geissler, Stefan ; Zinner, Thomas ; Tran-Gia, Phuoc: Estimating the flow rule installation time of SDN switches when facing control plane delay.. In: Measurement, Modelling and Evaluation of Computing Systems: 19th International GI/ITG Conference, MMB 2018, Erlangen, Germany, February 26-28, 2018, Proceedings 19 : Springer International Publishing, 2018, pp. 113–126
  • Geissler, Stefan ; Lange, Stanislav ; Wamser, Florian ; Hoßfeld, Tobias: Deriving youtube playout phases from encrypted packet level traffic.. In: 2018 30th International Teletraffic Congress (ITC 30). vol. 1 : IEEE, 2018, pp. 97–100
  • Schwarzmann, Susanna ; Zinner, Thomas ; Geissler, Stefan ; Sieber, Christian: Evaluation of the benefits of variable segment durations for adaptive streaming.. In: 2018 Tenth International Conference on Quality of Multimedia Experience (QoMEX) : IEEE, 2018, pp. 1–6
2017[ to top ]
  • Zinner, Thomas ; Geissler, Stefan ; Helmschrott, Fabian ; Spinsante, Susanna ; Braeken, An: An AAL-oriented measurement-based evaluation of different HTTP-based data transport protocols.. In: 2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM) : IEEE, 2017, pp. 1162–1167
  • Zinner, Thomas ; Geissler, Stefan ; Helmschrott, Fabian ; Burger, Valentin: Comparison of the initial delay for video playout start for different HTTP-based transport protocols.. In: 2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM) : IEEE, 2017, pp. 1027–1030
  • Flittner, Matthias ; Bauer, Robert ; Rizk, Amr ; Geissler, Stefan ; Zinner, Thomas ; Zitterbart, Martina: Taming the complexity of artifact reproducibility.. In: Proceedings of the Reproducibility Workshop, 2017, pp. 14–16
  • Geissler, Stefan ; Herrnleben, Stefan ; Bauer, Robert ; Gebert, Steffen ; Zinner, Thomas ; Jarschel, Michael: Tablevisor 2.0: Towards full-featured, scalable and hardware-independent multi table processing.. In: 2017 IEEE Conference on Network Softwarization (NetSoft) : IEEE, 2017, pp. 1–8
  • Zinner, Thomas ; Geissler, Stefan ; Lange, Stanislav ; Gebert, Steffen ; Seufert, Michael ; Tran-Gia, Phuoc: A discrete-time model for optimizing the processing time of virtualized network functions. In: Computer Networks vol. 125, Elsevier (2017), pp. 4–14
2016[ to top ]
  • Gebert, Steffen ; Geissler, Stefan ; Zinner, Thomas ; Nguyen-Ngoc, Anh ; Lange, Stanislav ; Tran-Gia, Phuoc: Zoom: Lightweight sdn-based elephant detection.. In: 2016 28th International Teletraffic Congress (ITC 28). vol. 2 : IEEE, 2016, pp. 1–6