@techreport{NavadeMaileGerman2023,
  type      = {Working Paper},
  author    = {Navade, Piyush and Maile, Lisa and German, Reinhard},
  title     = {Multiple DCLC Routing Algorithms for Ultra-Reliable and Time-Sensitive Applications},
  series = {KuVS Fachgespr{\"a}ch - W{\"u}rzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS'23)},
  journal   = {KuVS Fachgespr{\"a}ch - W{\"u}rzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS'23)},
  doi       = {10.25972/OPUS-32217},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322177},
  pages     = {4},
  year      = {2023},
  abstract  = {This paper discusses the problem of finding multiple shortest disjoint paths in modern communication networks, which is essential for ultra-reliable and time-sensitive applications. Dijkstra's algorithm has been a popular solution for the shortest path problem, but repetitive use of it to find multiple paths is not scalable. The Multiple Disjoint Path Algorithm (MDPAlg), published in 2021, proposes the use of a single full graph to construct multiple disjoint paths. This paper proposes modifications to the algorithm to include a delay constraint, which is important in time-sensitive applications. Different delay constraint least-cost routing algorithms are compared in a comprehensive manner to evaluate the benefits of the adapted MDPAlg algorithm. Fault tolerance, and thereby reliability, is ensured by generating multiple link-disjoint paths from source to destination.},
  language  = {en}
}
@techreport{OdhahGrassKraemer2022,
  type      = {Working Paper},
  author    = {Odhah, Najib and Grass, Eckhard and Kraemer, Rolf},
  title     = {Effective Rate of URLLC with Short Block-Length Information Theory},
  series = {W{\"u}rzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)},
  journal   = {W{\"u}rzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)},
  doi       = {10.25972/OPUS-28085},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280859},
  pages     = {4},
  year      = {2022},
  abstract  = {Shannon channel capacity estimation, based on large packet length is used in traditional Radio Resource Management (RRM) optimization. This is good for the normal transmission of data in a wired or wireless system. For industrial automation and control, rather short packages are used due to the short-latency requirements. Using Shannon's formula leads in this case to inaccurate RRM solutions, thus another formula should be used to optimize radio resources in short block-length packet transmission, which is the basic of Ultra-Reliable Low-Latency Communications (URLLCs). The stringent requirement of delay Quality of Service (QoS) for URLLCs requires a link-level channel model rather than a physical level channel model. After finding the basic and accurate formula of the achievable rate of short block-length packet transmission, the RRM optimization problem can be accurately formulated and solved under the new constraints of URLLCs. In this short paper, the current mathematical models, which are used in formulating the effective transmission rate of URLLCs, will be briefly explained. Then, using this rate in RRM for URLLC will be discussed.},
  subject      = {Datennetz},
  language  = {en}
}
@techreport{RauberBrechtelSchotten2023,
  type      = {Working Paper},
  author    = {Rauber, Christof A. O. and Brechtel, Lukas and Schotten, Hans D.},
  title     = {JCAS-Enabled Sensing as a Service in 6th-Generation Mobile Communication Networks},
  series = {KuVS Fachgespr{\"a}ch - W{\"u}rzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS'23)},
  journal   = {KuVS Fachgespr{\"a}ch - W{\"u}rzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS'23)},
  doi       = {10.25972/OPUS-32213},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322135},
  pages     = {4},
  year      = {2023},
  abstract  = {The introduction of new types of frequency spectrum in 6G technology facilitates the convergence of conventional mobile communications and radar functions. Thus, the mobile network itself becomes a versatile sensor system. This enables mobile network operators to offer a sensing service in addition to conventional data and telephony services. The potential benefits are expected to accrue to various stakeholders, including individuals, the environment, and society in general. The paper discusses technological development, possible integration, and use cases, as well as future development areas.},
  language  = {en}
}
@inproceedings{SanusiKlemke2021,
  author    = {Sanusi, Khaleel Asyraaf Mat and Klemke, Roland},
  title     = {Immersive Multimodal Environments for Psychomotor Skills Training},
  series = {Proceedings of the 1st Games Technology Summit},
  booktitle = {Proceedings of the 1st Games Technology Summit},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-246016},
  pages     = {9-15},
  year      = {2021},
  abstract  = {Modern immersive multimodal technologies enable the learners to completely get immersed in various learning situations in a way that feels like experiencing an authentic learning environment. These environments also allow the collection of multimodal data, which can be used with artificial intelligence to further improve the immersion and learning outcomes. The use of artificial intelligence has been widely explored for the interpretation of multimodal data collected from multiple sensors, thus giving insights to support learners' performance by providing personalised feedback. In this paper, we present a conceptual approach for creating immersive learning environments, integrated with multi-sensor setup to help learners improve their psychomotor skills in a remote setting.},
  language  = {en}
}
@techreport{SavvidisRothTutsch2022,
  type      = {Working Paper},
  author    = {Savvidis, Dimitrios and Roth, Robert and Tutsch, Dietmar},
  title     = {Static Evaluation of a Wheel-Topology for an SDN-based Network Usecase},
  series = {W{\"u}rzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)},
  journal   = {W{\"u}rzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)},
  doi       = {10.25972/OPUS-28071},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280715},
  pages     = {3},
  year      = {2022},
  abstract  = {The increased occurrence of Software-Defined-Networking (SDN) not only improves the dynamics and maintenance of network architectures, but also opens up new use cases and application possibilities. Based on these observations, we propose a new network topology consisting of a star and a ring topology. This hybrid topology will be called wheel topology in this paper. We have considered the static characteristics of the wheel topology and compare them with known other topologies.},
  subject      = {Datennetz},
  language  = {en}
}
@techreport{SertbasBuelbuelErgencFischer2022,
  type      = {Working Paper},
  author    = {Sertbas B{\"u}lb{\"u}l, Nurefsan and Ergenc, Doganalp and Fischer, Mathias},
  title     = {Evaluating Dynamic Path Reconfiguration for Time Sensitive Networks},
  series = {W{\"u}rzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)},
  journal   = {W{\"u}rzburg Workshop on Next-Generation Communication Networks (WueWoWas'22)},
  doi       = {10.25972/OPUS-28074},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280743},
  pages     = {5},
  year      = {2022},
  abstract  = {In time-sensitive networks (TSN) based on 802.1Qbv, i.e., the time-aware Shaper (TAS) protocol, precise transmission schedules and, paths are used to ensure end-to-end deterministic communication. Such resource reservations for data flows are usually established at the startup time of an application and remain untouched until the flow ends. There is no way to migrate existing flows easily to alternative paths without inducing additional delay or wasting resources. Therefore, some of the new flows cannot be embedded due to capacity limitations on certain links which leads to sub-optimal flow assignment. As future networks will need to support a large number of lowlatency flows, accommodating new flows at runtime and adapting existing flows accordingly becomes a challenging problem. In this extended abstract we summarize a previously published paper of us [1]. We combine software-defined networking (SDN), which provides better control of network flows, with TSN to be able to seamlessly migrate time-sensitive flows. For that, we formulate an optimization problem and propose different dynamic path configuration strategies under deterministic communication requirements. Our simulation results indicate that regularly reconfiguring the flow assignments can improve the latency of time-sensitive flows and can increase the number of flows embedded in the network around 4\% in worst-case scenarios while still satisfying individual flow deadlines.},
  subject      = {Datennetz},
  language  = {en}
}
@techreport{SimonGallenmuellerCarle2023,
  type      = {Working Paper},
  author    = {Simon, Manuel and Gallenm{\"u}ller, Sebastian and Carle, Georg},
  title     = {Never Miss Twice - Add-On-Miss Table Updates in Software Data Planes},
  series = {KuVS Fachgespr{\"a}ch - W{\"u}rzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS'23)},
  journal   = {KuVS Fachgespr{\"a}ch - W{\"u}rzburg Workshop on Modeling, Analysis and Simulation of Next-Generation Communication Networks 2023 (WueWoWAS'23)},
  doi       = {10.25972/OPUS-32207},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322071},
  pages     = {5},
  year      = {2023},
  abstract  = {State Management at line rate is crucial for critical applications in next-generation networks. P4 is a language used in software-defined networking to program the data plane. The data plane can profit in many circumstances when it is allowed to manage its state without any detour over a controller. This work is based on a previous study by investigating the potential and performance of add-on-miss insertions of state by the data plane. The state keeping capabilities of P4 are limited regarding the amount of data and the update frequency. We follow the tentative specification of an upcoming portable-NIC-architecture and implement these changes into the software P4 target T4P4S. We show that insertions are possible with only a slight overhead compared to lookups and evaluate the influence of the rate of insertions on their latency.},
  language  = {en}
}