Workshop Program
June 9, 2025 |
June 10, 2025 |
June 11, 2025 |
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(9:30-10:30) |
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Coffee break |
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Keynote Talk I |
Closing Session |
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| June 9, 2025 | ||
| Registration + Coffee break (10:30 - 11:00) | ||
| Opening Session (11:00 - 11:30) Poul Heegaard (NO), Jacek Rak (PL) |
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| Keynote Talk I (11:30 - 12:30) |
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| Toward Resilient NextG Networks: Challenges, Strategies, and Future Directions David Tipper (University of Pittsburgh, USA) |
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Abstract
Next-generation (NextG) mobile networks promise to transform connectivity by supporting both human users and an increasingly dense ecosystem of devices through dynamic, composable services. At the heart of this vision is an agile network infrastructure capable of delivering customized network slices with performance guarantees - on demand and at scale. This evolution will deepen societal and critical infrastructure dependence on mobile networks across sectors such as transportation, power, and emergency services. Yet, recent history reminds us that today’s networks are fragile, with large outages stemming from power failures, extreme weather, software misconfigurations, and other systemic vulnerabilities. In this talk, we examine the architectural trends and operational characteristics of NextG mobile networks that complicate the pursuit of resilience. We will discuss the technical and policy-based levers that can be employed to enhance robustness - from smarter redundancy and automated recovery to policy coordination. We conclude by identifying open research directions that are essential for designing resilient NextG networks.
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Biography David Tipper is a Professor in the School of Computing and Information at the University of Pittsburgh (Pitt). He was Director of the Graduate Telecommunications and Networking Program at the University of Pittsburgh from 2007 to 2014. He is a graduate of the University of Arizona (PhD Electrical Engineering, MS Systems Engineering) and Virginia Tech (BS in Electrical Engineering). At Pitt, Tipper teaches courses on communication systems, wireless networks, network performance, network design, and infrastructure protection. Tipper’s research has been supported by grants from various government and corporate sources such as NSF, NSA, ARO, DARPA, NIST, IBM, and AT&T. His current research interests are resilient critical infrastructures, network design, time varying performance and reliability analysis techniques. |
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| Lunch (12:30 - 13:30) | ||
| Tutorial - An Empirical Analysis of Quantum Key Distribution in Realistic Networks (13:30 - 15:00) Maria Caterina D’Aloia, Christian Esposito (University of Salerno, IT) |
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| Coffee break (15:00 - 15:30) | ||
| Technical Session I - Markov Models for Resilience (15:30 - 17:00) Chair: David Tipper (University of Pittsburgh, USA) |
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| 1. |
Theory Meets Practice: Assessment of Decomposition-Based Approximation in 2D Markov Models for Server Cluster Resilience
(FP; 15:30-16:00)
Carina Baur (University of Würzburg, Germany); Frank Loh (University of Wuerzburg, Germany); Tobias Hossfeld (University of Würzburg, Germany) |
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| 2. |
Markov Model of the Performability of Physical Servers and Virtual Machines with Failures (SP; 16:00-16:25) Poul E. Heegaard (Norwegian University of Science and Technology, Norway); Tobias Hoßfeld (University of Würzburg, Germany) |
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| 3. |
On the Service Resilience Benefits of Multi-Operator Network Sharing with NFV
(FP; 16:25-16:55)
Trond Vatten (Norwegian University of Science and Technology, Norway); Marija Furdek (Chalmers University of Technology, Sweden); Marija Gajić and Poul E. Heegaard (Norwegian University of Science and Technology, Norway) |
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| Hiking in Bymarka (19:30- ) |
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| June 10, 2025 | ||
| Technical Session II - Anomaly Detection and Load Predictions (9:00 - 10:30) Chair: Stanislav Lange (Norwegian University of Science and Technology, Norway) |
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| 1. |
Towards Detecting Traffic Changes in Real-World Heterogeneous Multi-Cloud Environments
(SP; 9:00-9:25)
Marleen Sichermann (University of Wuerzburg, Germany); Katharina Dietz(University of Würzburg, Germany); Leticia Serejo Kunz (University of Wuerzburg, Germany); Jochen Kögel (IsarNet Software Solutions GmbH, Germany); Stefan Geissler (University of Wuerzburg, Germany); Tobias Hoßfeld (University of Würzburg, Germany) |
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| 2. |
Dynamic ML Model Updating Strategies for Detection of Evolving Network Attacks
(SP; 9:25-9:50) Aleksandra Knapińska and Marija Furdek (Chalmers University of Technology, Sweden) |
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| 3. |
On Traffic Prediction in Backbone Networks for Adaptive Proactive Protection
(SP; 9:50-10:15)
Attila Dobai-Pataky (Babes-Bolyai University of Cluj-Napoca, Romania); Balázs Vass (Budapest University of Technology and Economics, Hungary & Babes Bolyai University, Cluj Napoca, Romania); Lehel Csato (Babes-Bolyai University of Cluj-Napoca, Romania) |
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| Coffee break (10:30 - 11:00) | ||
| Industrial Session (11:00 - 12:30) |
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| Lunch (12:30 - 13:30) | ||
| Technical Session III - Resilience of Optical Systems (13:30 - 15:00) Chair: Trond Vatten (Norwegian University of Science and Technology, Norway) |
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| 1. |
Availability-Aware Optical Transport Network Reconfigurations with Minimum Disruption Time
(FP; 13:30-14:00)
Malek Bekri (Technische Universität Chemnitz & Fakultät für Elektrotechnik und Informationstechnik, Germany); Ronald Romero Reyes (Technische Universität Chemnitz, Germany) |
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| 2. |
Comparative Analysis of Type-C approaches in Protected PON
(FP; 14:00-14:30) Anjali Sharma (University of the Bundeswehr Munich, Germany); Ritanshi Agarwal (University of the Bundeswehr, Munich, Germany); Cristian Bermudez Serna(Technical University of Munich, Germany); Carmen Mas-Machuca (University of the Bundeswehr Munich (UniBW), Germany) |
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| 3. |
Design of Filterless Metro-Aggregation Networks Resilient to Frequent Local Power Outages
(SP; 14:30-14:55)
Joao Pedro (Nokia Portugal, Portugal & Instituto de Telecomunicações, Portugal); Mohammad Hosseini (Nokia, Germany & Mohammad Mohammad Hosseini, Germany); Antonio Napoli (Infinera, Germany); Johan Bäck (Infinera Sweden, Germany) |
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| Coffee break (15:00 - 15:30) | ||
| Keynote Talk II (15:30 - 17:00) |
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| Addressing Network Adaptability in Geographically Correlated Failures Deepankar Medhi (U.S. National Science Foundation, USA) |
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Abstract
Increasingly, large networks need to recover quickly from significant network disruptions caused by events such as natural disasters and major weather events. In this talk, we will discuss how networks can be adapted to address geographically correlated failures through mechanisms such as multi-topology routing.
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Biography Deep Medhi is a program director at the U.S. National Science Foundation (NSF) where he manages networking research programs and research infrastructure programs. He joined the University of Missouri-Kansas City (UMKC), USA in 1989 and retired as Curators' Distinguished Professor in 2022, now designated with the Curators' Distinguished Professor Emeritus by the Board of Curators of the University of Missouri System. Prior to joining UMKC in 1989, he was a member of the technical staff at AT&T Bell Laboratories from 1987 to 1989. He received B.Sc. in Mathematics from Cotton College, Gauhati University, India, M.Sc. in Mathematics from St. Stephen's College, University of Delhi, India, and his M.S. and Ph.D. in Computer Sciences from the University of Wisconsin-Madison, USA. He is an IEEE Fellow. |
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| Dinner (19:30- ) |
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| June 11, 2025 | ||
| Keynote Talk III (9:30 - 10:30) |
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| Fortifying Data Availability and Synchronization in Decentralized Storage Systems Hein Meling (University of Stavanger, NO) |
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Abstract
Resiliency in decentralized storage hinges on two orthogonal capabilities: keeping file chunks accessible despite peer churn, and reconciling peer replicas to maintain redundancy. We present Snarl, which entangles Merkle trees to embed redundancy in the hash hierarchy—boosting storage utilization by up to 5× while preserving availability under 50 % chunk loss. We also introduce SNIPS, a succinct non-interactive proof-of-storage scheme that uses only a few bits per chunk, cutting synchronization traffic significantly while creating and verifying proofs in tens of microseconds per chunk. Together, these techniques keep decentralized networks robust to massive failures while keeping synchronization lightweight. |
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Biography Hein Meling is Professor of Computer Science at the University of Stavanger, Norway, where he directs the Reliable Systems Lab. He led the BBChain project—funded by the Research Council of Norway—to investigate efficient, trustworthy computing using blockchains and biometric authentication, and previously served as co-principal investigator on three major RCN-supported initiatives. Meling holds a PhD from the Norwegian University of Science and Technology (2006) and has co-authored over 75 peer-reviewed publications. His research centers on fault-tolerant and secure distributed computing, with particular emphasis on blockchain technologies, Byzantine fault tolerance, and decentralized storage. His team develops high-level programming models, middleware platforms, and protocols that enhance the robustness and reliability of large-scale network services. |
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| Coffee break (10:30 - 11:00) | ||
| Technical Session IV - Measurements and Tools (11:00 - 12:00) Chair: Joao Pedro (Nokia Portugal, Portugal & Instituto de Telecomunicações, Portugal) |
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| 1. |
PyRBD++: An Open-Source Fast Reliability Block Diagram Evaluation Tool
(SP; 11:00-11:25)
Shakthivelu Janardhanan and Yaxuan Chen (Technical University of Munich, Germany); Carmen Mas-Machuca (University of the Bundeswehr Munich (UniBW), Germany) |
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| 2. |
Measuring Mobile Network Coverage During Extended Road trips in the Nordics (FP; 11:25-11:55) Jan Marius Evang (Simula Metropolitan Center for Digital Engineering, Norway & Oslo Metropolitan University, Norway); Thomas Dreibholz (Simula Metropolitan Centre for Digital Engineering, Norway); Somnath Mazumdar (Copenhagen Business School, Denmark) |
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| Closing Session (12:00 - 12:30) | ||
| Lunch (12:30 - 13:30) | ||