@incollection{Rishi2023, author = {Rishi, Tushar}, title = {Marxism and Contemporary Cultural Studies}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-79}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305882}, publisher = {W{\"u}rzburg University Press}, pages = {79-85}, year = {2023}, abstract = {No abstract available.}, subject = {Kulturwissenschaften}, language = {en} } @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{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} } @techreport{BrischKasslerVestinetal.2023, type = {Working Paper}, author = {Brisch, Fabian and Kassler, Andreas and Vestin, Jonathan and Pieska, Marcus and Amend, Markus}, title = {Accelerating Transport Layer Multipath Packet Scheduling for 5G-ATSSS}, 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-32205}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322052}, pages = {4}, year = {2023}, abstract = {Utilizing multiple access networks such as 5G, 4G, and Wi-Fi simultaneously can lead to increased robustness, resiliency, and capacity for mobile users. However, transparently implementing packet distribution over multiple paths within the core of the network faces multiple challenges including scalability to a large number of customers, low latency, and high-capacity packet processing requirements. In this paper, we offload congestion-aware multipath packet scheduling to a smartNIC. However, such hardware acceleration faces multiple challenges due to programming language and platform limitations. We implement different multipath schedulers in P4 with different complexity in order to cope with dynamically changing path capacities. Using testbed measurements, we show that our CMon scheduler, which monitors path congestion in the data plane and dynamically adjusts scheduling weights for the different paths based on path state information, can process more than 3.5 Mpps packets 25 μs latency.}, language = {en} } @techreport{HasslingerNtougiasHasslingeretal.2023, type = {Working Paper}, author = {Hasslinger, Gerhard and Ntougias, Konstantinos and Hasslinger, Frank and Hohlfeld, Oliver}, title = {Performance Analysis of Basic Web Caching Strategies (LFU, LRU, FIFO, ...) with Time-To-Live Data Validation}, 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-32204}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322048}, pages = {5}, year = {2023}, abstract = {Web caches often use a Time-to-live (TTL) limit to validate data consistency with web servers. We study the impact of TTL constraints on the hit ratio of basic strategies in caches of fixed size. We derive analytical results and confirm their accuracy in comparison to simulations. We propose a score-based caching method with awareness of the current TTL per data for improving the hit ratio close to the upper bound.}, language = {en} } @techreport{FundaMarinGarciaGermanetal.2023, type = {Working Paper}, author = {Funda, Christoph and Mar{\´i}n Garc{\´i}a, Pablo and German, Reinhard and Hielscher, Kai-Steffen}, title = {Online Algorithm for Arrival \& Service Curve Estimation}, 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-32211}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322112}, pages = {5}, year = {2023}, abstract = {This paper presents a novel concept to extend state-of-the-art buffer monitoring with additional measures to estimate service-curves. The online algorithm for service-curve estimation replaces the state-of-the-art timestamp logging, as we expect it to overcome the main disadvantages of generating a huge amount of data and using a lot of CPU resources to store the data to a file during operation. We prove the accuracy of the online-algorithm offline with timestamp data and compare the derived bounds to the measured delay and backlog. We also do a proof-of- concept of the online-algorithm, implement it in LabVIEW and compare its performance to the timestamp logging by CPU load and data-size of the log-file. However, the implementation is still work-in-progress.}, language = {en} } @techreport{MazighBeausencourtBodeetal.2023, type = {Working Paper}, author = {Mazigh, Sadok Mehdi and Beausencourt, Marcel and Bode, Max Julius and Scheffler, Thomas}, title = {Using P4-INT on Tofino for Measuring Device Performance Characteristics in a Network Lab}, 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-32208}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322084}, pages = {4}, year = {2023}, abstract = {This paper presents a prototypical implementation of the In-band Network Telemetry (INT) specification in P4 and demonstrates a use case, where a Tofino Switch is used to measure device and network performance in a lab setting. This work is based on research activities in the area of P4 data plane programming conducted at the network lab of HTW Berlin.}, language = {en} } @incollection{Effron2023, author = {Effron, Robin J.}, title = {Taking Notice and Service of Process Digital}, series = {Digitalization as a challenge for justice and administration = La digitalizacion como reto para la justicia y la administracion = Digitalisierung als Herausforderung f{\"u}r Justiz und Verwaltung}, booktitle = {Digitalization as a challenge for justice and administration = La digitalizacion como reto para la justicia y la administracion = Digitalisierung als Herausforderung f{\"u}r Justiz und Verwaltung}, editor = {Ludwigs, Markus and Muriel Ciceri, Jos{\´e} Hern{\´a}n and Velling, Annika}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/978-3-95826-201-0-111}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-306297}, publisher = {W{\"u}rzburg University Press}, pages = {111-120}, year = {2023}, abstract = {No abstract available.}, language = {en} } @incollection{ArewaFakolade2023, author = {Arewa, Olufunmilayo B. and Fakolade, Ayodeji O.}, title = {Digitalization, Fragmentation, and Justice in Nigeria}, series = {Digitalization as a challenge for justice and administration = La digitalizaci{\´o}n como reto para la justicia y la administraci{\´o}n = Digitalisierung als Herausforderung f{\"u}r Justiz und Verwaltung}, booktitle = {Digitalization as a challenge for justice and administration = La digitalizaci{\´o}n como reto para la justicia y la administraci{\´o}n = Digitalisierung als Herausforderung f{\"u}r Justiz und Verwaltung}, editor = {Ludwigs, Markus and Muriel Ciceri, Jos{\´e} Hern{\´a}n and Velling, Annika}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/978-3-95826-201-0-1}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-306231}, publisher = {W{\"u}rzburg University Press}, pages = {1-22}, year = {2023}, abstract = {No abstract available.}, language = {en} } @techreport{GrossmannHomeyer2023, type = {Working Paper}, author = {Großmann, Marcel and Homeyer, Tobias}, title = {Emulation of Multipath Transmissions in P4 Networks with Kathar{\´a}}, 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-32209}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322095}, pages = {4}, year = {2023}, abstract = {Packets sent over a network can either get lost or reach their destination. Protocols like TCP try to solve this problem by resending the lost packets. However, retransmissions consume a lot of time and are cumbersome for the transmission of critical data. Multipath solutions are quite common to address this reliability issue and are available on almost every layer of the ISO/OSI model. We propose a solution based on a P4 network to duplicate packets in order to send them to their destination via multiple routes. The last network hop ensures that only a single copy of the traffic is further forwarded to its destination by adopting a concept similar to Bloom filters. Besides, if fast delivery is requested we provide a P4 prototype, which randomly forwards the packets over different transmission paths. For reproducibility, we implement our approach in a container-based network emulation system called Kathar{\´a}.}, language = {en} } @incollection{RodriguezSamudio2023, author = {Rodriguez Samudio, Ruben E.}, title = {E-government Challenges in Smart Societies: The Japanese Experience}, series = {Digitalization as a challenge for justice and administration = La digitalizacion como reto para la justicia y la administracion = Digitalisierung als Herausforderung f{\"u}r Justiz und Verwaltung}, booktitle = {Digitalization as a challenge for justice and administration = La digitalizacion como reto para la justicia y la administracion = Digitalisierung als Herausforderung f{\"u}r Justiz und Verwaltung}, editor = {Ludwigs, Markus and Muriel Ciceri, Jos{\´e} Hern{\´a}n and Velling, Annika}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/978-3-95826-201-0-71}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-306275}, publisher = {W{\"u}rzburg University Press}, pages = {71-88}, year = {2023}, abstract = {No abstract available.}, language = {en} } @incollection{Chakraborty2023, author = {Chakraborty, Adreeta}, title = {Political and Cultural Negotiations with Feminism in India: A Perspective}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-51}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305866}, publisher = {W{\"u}rzburg University Press}, pages = {51-58}, year = {2023}, abstract = {No abstract available.}, subject = {Kulturwissenschaften}, language = {en} } @incollection{Chaturvedi2023, author = {Chaturvedi, Ridhi}, title = {Female Suicidality and Its Cultural Aspects: Watching the "Living Dead" in Deepa Mehta's Water}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-129}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305927}, publisher = {W{\"u}rzburg University Press}, pages = {129-147}, year = {2023}, abstract = {No abstract available.}, subject = {Film}, language = {en} } @incollection{Khapai2023, author = {Khapai, YS Sochuiwon Priscilla}, title = {Rethinking the Culture of Education with Raymond Williams}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-33}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305854}, publisher = {W{\"u}rzburg University Press}, pages = {33-44}, year = {2023}, abstract = {No abstract available.}, subject = {Kulturwissenschaften}, language = {en} } @incollection{Saundarya2023, author = {Saundarya,}, title = {Food Cultures: Dynamics of Caste, Gender, Religion, and Class in India}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-101}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305901}, publisher = {W{\"u}rzburg University Press}, pages = {101-111}, year = {2023}, abstract = {No abstract available.}, subject = {Kulturwissenschaften}, language = {en} } @incollection{Mantraraj2023, author = {Mantraraj, Sudeeti Geeta}, title = {Strategies for Survival and Resources for Resistance}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-171}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305948}, publisher = {Universit{\"a}t W{\"u}rzburg}, pages = {171-180}, year = {2023}, abstract = {No abstract available.}, subject = {Kulturwissenschaften}, language = {en} } @incollection{Roy2023, author = {Roy, Abhilasha}, title = {Countercultures around the World: A Postcolonial Reading of Paul Gilroy's The Black Atlantic}, series = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, booktitle = {Global Cultural Studies? Engaged Scholarship between National and Transnational Frames}, editor = {Jetter, Tobias}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-207-2-7}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-305829}, publisher = {W{\"u}rzburg University Press}, pages = {7-19}, year = {2023}, abstract = {No abstract available.}, subject = {Kulturwissenschaften}, language = {en} } @techreport{GrossmannLe2023, type = {Working Paper}, author = {Großmann, Marcel and Le, Duy Thanh}, title = {Visualization of Network Emulation Enabled by Kathar{\´a}}, 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-32218}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322189}, pages = {4}, year = {2023}, abstract = {In network research, reproducibility of experiments is not always easy to achieve. Infrastructures are cumbersome to set up or are not available due to vendor-specific devices. Emulators try to overcome those issues to a given extent and are available in different service models. Unfortunately, the usability of emulators requires time-consuming efforts and a deep understanding of their functionality. At first, we analyze to which extent currently available open-source emulators support network configurations and how user-friendly they are. With these insights, we describe, how an ease-to-use emulator is implemented and may run as a Network Emulator as a Service (NEaaS). Therefore, virtualization plays a major role in order to deploy a NEaaS based on Kathar{\´a}.}, language = {en} } @techreport{DworzakGrossmannLe2023, type = {Working Paper}, author = {Dworzak, Manuel and Großmann, Marcel and Le, Duy Thanh}, title = {Federated Learning for Service Placement in Fog and Edge Computing}, 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-32219}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322193}, pages = {4}, year = {2023}, abstract = {Service orchestration requires enormous attention and is a struggle nowadays. Of course, virtualization provides a base level of abstraction for services to be deployable on a lot of infrastructures. With container virtualization, the trend to migrate applications to a micro-services level in order to be executable in Fog and Edge Computing environments increases manageability and maintenance efforts rapidly. Similarly, network virtualization adds effort to calibrate IP flows for Software-Defined Networks and eventually route it by means of Network Function Virtualization. Nevertheless, there are concepts like MAPE-K to support micro-service distribution in next-generation cloud and network environments. We want to explore, how a service distribution can be improved by adopting machine learning concepts for infrastructure or service changes. Therefore, we show how federated machine learning is integrated into a cloud-to-fog-continuum without burdening single nodes.}, language = {en} } @article{Haveman2023, author = {Haveman, Rense}, title = {Phytosociological notes on hedges in South Ayrshire, Scotland}, series = {Forum Geobotanicum}, volume = {11}, journal = {Forum Geobotanicum}, issn = {1867-9315}, doi = {10.3264/FG.2023.0420}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-312634}, pages = {1-7}, year = {2023}, abstract = {On the basis of four relev{\´e}es of hedges around Straiton en Dailly in South Ayrshire, Scotland, some features of hedges are discussed. On the basis of the brambles, the vegetation of these hedges can be assigned to the Pruno-Rubion sprengelii, which comprises the bramble scrubs of circumneutral and nutrient rich soils in West Europe (Haveman et al. 2017, Haveman \& de Ronde 2019). Until now, this alliance was thought to be restricted to the northwestern edge of the European continent, but based on these relev{\´e}es and the known distribution area of Rubus nemoralis and Rubus polyanthemus, both characteristic for the Pruno-Rubion sprengelii, large parts of North England and Scotland have to be included in the distribution area of the alliance. The Pruno-Rubion sprengelii is optimally developed in rather narrow structures, like hedges, which are pruned every year. Here, brambles and herbs alike can grow with and under the shrubs, facilitated by the light that reaches large parts of the ground. Where the economic base of hedges perishes, they are not longer maintained, and the shrubs can grow out to their natural proportions. This changes the amount of light reaching the surface in the inner parts of the thicket, changing the competition between the species. The brambles as well as the herbs are displaced to the outer edges of the scrub, and the vegetation "dissociates" in a high-growing scrub, a fore-mantle ("cuff") with brambles, and a fringe with perennial herbs. These elements can hardly ever be assigned to the Pruno-Rubion anymore. The Pruno-Rubion sprengelii in optima forma is a scrub in which the three elements (shrubs, brambles, and herbs) grow closely intertwined. This is rarely found in natural landscapes, and thus the alliance is a typical element of the old farmer landscape. What is more: the typical species of the alliance, like Rubus nemoralis and R. polyanthemus, could only evolve after the landscape was opened by farmers in the last six millennia (Matzke-Hajek 1997), giving way to Rubus ulmifolius to expand its distribution area. This caused an explosion of hybrids which stabilised through apomixis into the wealth of Rubus species inhibiting the West European landscape nowadays (Sochor et al. 2015). Many of these species have their original home in a man-made landscape. Therefore, the Pruno-Rubion sprengelii can be characterised as a "farmers alliance" pur sang.}, subject = {Brombeere}, language = {en} } @techreport{MartinoDeutschmannHielscheretal.2023, type = {Working Paper}, author = {Martino, Luigi and Deutschmann, J{\"o}rg and Hielscher, Kai-Steffen and German, Reinhard}, title = {Towards a 5G Satellite Communication Framework for V2X}, 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-32214}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322148}, pages = {5}, year = {2023}, abstract = {In recent years, satellite communication has been expanding its field of application in the world of computer networks. This paper aims to provide an overview of how a typical scenario involving 5G Non-Terrestrial Networks (NTNs) for vehicle to everything (V2X) applications is characterized. In particular, a first implementation of a system that integrates them together will be described. Such a framework will later be used to evaluate the performance of applications such as Vehicle Monitoring (VM), Remote Driving (RD), Voice Over IP (VoIP), and others. Different configuration scenarios such as Low Earth Orbit and Geostationary Orbit will be considered.}, 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} } @techreport{FundaKonheiserGermanetal.2023, type = {Working Paper}, author = {Funda, Christoph and Konheiser, Tobias and German, Reinhard and Hielscher, Kai-Steffen}, title = {How to Model and Predict the Scalability of a Hardware-In-The-Loop Test Bench for Data Re-Injection?}, 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-32215}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322150}, pages = {4}, year = {2023}, abstract = {This paper describes a novel application of an empirical network calculus model based on measurements of a hardware-in-the-loop (HIL) test system. The aim is to predict the performance of a HIL test bench for open-loop re-injection in the context of scalability. HIL test benches are distributed computer systems including software, hardware, and networking devices. They are used to validate complex technical systems, but have not yet been system under study themselves. Our approach is to use measurements from the HIL system to create an empirical model for arrival and service curves. We predict the performance and design the previously unknown parameters of the HIL simulator with network calculus (NC), namely the buffer sizes and the minimum needed pre-buffer time for the playback buffer. We furthermore show, that it is possible to estimate the CPU load from arrival and service-curves based on the utilization theorem, and hence estimate the scalability of the HIL system in the context of the number of sensor streams.}, language = {en} } @techreport{HerrmannRizk2023, type = {Working Paper}, author = {Herrmann, Martin and Rizk, Amr}, title = {On Data Plane Multipath Scheduling for Connected Mobility 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-32203}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-322033}, pages = {3}, year = {2023}, abstract = {Cooperative, connected and automated mobility (CCAM) systems depend on a reliable communication to provide their service and more crucially to ensure the safety of users. One way to ensure the reliability of a data transmission is to use multiple transmission technologies in combination with redundant flows. In this paper, we describe a system requiring multipath communication in the context of CCAM. To this end, we introduce a data plane-based scheduler that uses replication and integration modules to provide redundant and transparent multipath communication. We provide an analytical model for the full replication module of the system and give an overview of how and where the data-plane scheduler components can be realized.}, language = {en} } @techreport{HerrmannRizk2023, type = {Working Paper}, author = {Herrmann, Martin and Rizk, Amr}, title = {On Data Plane Multipath Scheduling for Connected Mobility 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)}, edition = {aktualisierte Version}, doi = {10.25972/OPUS-35344}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-353444}, pages = {4}, year = {2023}, abstract = {Cooperative, connected and automated mobility (CCAM) systems depend on a reliable communication to provide their service and more crucially to ensure the safety of users. One way to ensure the reliability of a data transmission is to use multiple transmission technologies in combination with redundant flows. In this paper, we describe a system requiring multipath communication in the context of CCAM. To this end, we introduce a data plane-based scheduler that uses replication and integration modules to provide redundant and transparent multipath communication. We provide an analytical model for the full replication module of the system and give an overview of how and where the data-plane scheduler components can be realized.}, language = {en} } @techreport{DeutschmannHielscherGerman2022, type = {Working Paper}, author = {Deutschmann, J{\"o}rg and Hielscher, Kai-Steffen and German, Reinhard}, title = {Next-Generation Satellite Communication 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-28073}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280732}, pages = {4}, year = {2022}, abstract = {This paper gives an overview of our recent activities in the field of satellite communication networks, including an introduction to geostationary satellite systems and Low Earth Orbit megaconstellations. To mitigate the high latencies of geostationary satellite networks, TCP-splitting Performance Enhancing Proxies are deployed. However, these cannot be applied in the case of encrypted transport headers as it is the case for VPNs or QUIC. We summarize performance evaluation results from multiple measurement campaigns. In a recently concluded project, multipath communication was used to combine the advantages of very heterogeneous communication paths: low data rate, low latency (e.g., DSL light) and high data rate, high latency (e.g., geostationary satellite).}, subject = {Datennetz}, language = {en} } @techreport{ElsayedRizk2022, type = {Working Paper}, author = {Elsayed, Karim and Rizk, Amr}, title = {Response Times in Time-to-Live Caching Hierarchies under Random Network Delays}, 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-28084}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280843}, pages = {4}, year = {2022}, abstract = {Time-to-Live (TTL) caches decouple the occupancy of objects in cache through object-specific validity timers. Stateof- the art techniques provide exact methods for the calculation of object-specific hit probabilities given entire cache hierarchies with random inter-cache network delays. The system hit probability is a provider-centric metric as it relates to the origin offload, i.e., the decrease in the number of requests that are served by the content origin server. In this paper we consider a user-centric metric, i.e., the response time, which is shown to be structurally different from the system hit probability. Equipped with the state-of-theart exact modeling technique using Markov-arrival processes we derive expressions for the expected object response time and pave a way for its optimization under network delays.}, subject = {Datennetz}, language = {en} } @techreport{AlfredssonKasslerVestinetal.2022, type = {Working Paper}, author = {Alfredsson, Rebecka and Kassler, Andreas and Vestin, Jonathan and Pieska, Marcus and Amend, Markus}, title = {Accelerating a Transport Layer based 5G Multi-Access Proxy on SmartNIC}, 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-28079}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280798}, pages = {4}, year = {2022}, abstract = {Utilizing multiple access technologies such as 5G, 4G, and Wi-Fi within a coherent framework is currently standardized by 3GPP within 5G ATSSS. Indeed, distributing packets over multiple networks can lead to increased robustness, resiliency and capacity. A key part of such a framework is the multi-access proxy, which transparently distributes packets over multiple paths. As the proxy needs to serve thousands of customers, scalability and performance are crucial for operator deployments. In this paper, we leverage recent advancements in data plane programming, implement a multi-access proxy based on the MP-DCCP tunneling approach in P4 and hardware accelerate it by deploying the pipeline on a smartNIC. This is challenging due to the complex scheduling and congestion control operations involved. We present our pipeline and data structures design for congestion control and packet scheduling state management. Initial measurements in our testbed show that packet latency is in the range of 25 μs demonstrating the feasibility of our approach.}, subject = {Datennetz}, language = {en} } @incollection{Maniruzzaman2022, author = {Maniruzzaman, Md.}, title = {Blended Learning in the New Normal: EFL Student and Teacher Perceptions and Reactions}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-81}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296508}, publisher = {W{\"u}rzburg University Press}, pages = {81-104}, year = {2022}, abstract = {To reopen educational institutions and return to the classroom, we all need to modify how we act to successfully face the challenges of the new normal resulting from the COVID-19 pandemic and entailing our insights into and the after-effects of the pandemic. More specifically, the new normal might encompass online education we are getting used to during the pandemic and the age-old onsite education as well. Thoughtfully integrated, online and onsite learning combine to create blended learning. However, the pertinent literature reveals that English as a foreign language (EFL) students and teachers differently perceive and react to blended learning in diverse contexts. This study was designed to explore student and teacher perceptions of and reactions to blended learning in the Department of English, Jahangirnagar University in the new normal. Fifty undergraduates of EFL and eight teachers of the department participated in the study. To collect data from them, the Student Questionnaire and the Teacher Questionnaire were used. And the data were processed by applying the SPSS programme module. The findings revealed that the majority of the students and the teachers had mostly positive perceptions of blended learning, although the former did not have sufficient exposure to online learning and the latter lacked adequate insights into online teaching. Further, both the students and the teachers expressed mostly positive reactions to blended learning in the new normal, though the former deemed online examinations inadequately smooth and reliable, and the latter had insufficient experience of online instruction and assessment. The study categorically recommends reforming the curriculum, adopting relevant instructional strategies, developing suitable materials, customizing the assessment, integrating and installing technology, training the teachers, upskilling the students for blended learning, improving the infrastructure, and adjusting the management.}, language = {en} } @incollection{Chetvertak2022, author = {Chetvertak, Іevgeniia}, title = {Cyber aggression in the stance of communicative approach}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-1}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296152}, publisher = {W{\"u}rzburg University Press}, pages = {1-9}, year = {2022}, abstract = {The article deals with the notion of internet aggression (cyber aggression). It considers the mentioned term from both psychological and communicative approaches. The paper also provides detailed analyses of the cyber aggression in political discourse. The provided ex-amples are taken from the speeches of politicians during the time of Covid pandemic. The author also identifies several types of cyber aggression.}, language = {en} } @techreport{LhamoNguyenFitzek2022, type = {Working Paper}, author = {Lhamo, Osel and Nguyen, Giang T. and Fitzek, Frank H. P.}, title = {Virtual Queues for QoS Compliance of Haptic Data Streams in Teleoperation}, 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-28076}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280762}, pages = {4}, year = {2022}, abstract = {Tactile Internet aims at allowing perceived real-time interactions between humans and machines. This requires satisfying a stringent latency requirement of haptic data streams whose data rates vary drastically as the results of perceptual codecs. This introduces a complex problem for the underlying network infrastructure to fulfill the pre-defined level of Quality of Service (QoS). However, novel networking hardware with data plane programming capability allows processing packets differently and opens up a new opportunity. For example, a dynamic and network-aware resource management strategy can help satisfy the QoS requirements of different priority flows without wasting precious bandwidth. This paper introduces virtual queues for service differentiation between different types of traffic streams, leveraging protocol independent switch architecture (PISA). We propose coordinating the management of all the queues and dynamically adapting their sizes to minimize packet loss and delay due to network congestion and ensure QoS compliance.}, subject = {Datennetz}, language = {en} } @incollection{Kushch2022, author = {Kushch, Elina}, title = {The aphoristic potential of presidential rhetoric of G. Bush Jr.}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-25}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296456}, publisher = {W{\"u}rzburg University Press}, pages = {25-39}, year = {2022}, abstract = {This research paper concentrates on the analysis of the aphoristic potential of G. W. Bush's presidential rhetoric. Aphorisms are the most ancient laconic forms of expressing original and completed thoughts which reveal the peculiarity of their authors' world perception and worldview. From this perspective, these units can serve as the means of values codification. Repeatability and widespread use of aphorisms in various communications contribute to transmitting the values and ideas between the generations. Political aphorisms, which are a combination of aphoristic expressions from political communication and discourse, play an important role in this process. The authors of these expressions are not only politicians, but also philosophers, historians, writers, celebrities of different nationalities and generations. Presidential rhetoric is an integral and significant part of political discourse. The use of aphorisms as the means of codification of national and common human values in President G. W. Bush's formal addresses and speeches is intentional. It makes them concise and original, influential and convincing. Aphoristic expressions denoting common human values show the ideas and beliefs of their authors, as well as the politician, about life, justice, equality, freedom, faith, family. Aphorisms defining national values become the means of updating concepts of democracy, unity and diversity, freedom and security, success, and opportunity to fulfill one's potential in American society. The distinctive feature of G.W. Bush's rhetoric is the frequent use of aphorisms whose authors are the Founding Fathers.}, language = {en} } @incollection{Shtaltovna2022, author = {Shtaltovna, Yuliya}, title = {Linguistic Democratization of the Modern English Language: Functional Parameters of English Youth Slang Neologisms}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-105}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296514}, publisher = {W{\"u}rzburg University Press}, pages = {105-115}, year = {2022}, abstract = {No abstract available.}, language = {en} } @incollection{Kumar2022, author = {Kumar, Dinesh}, title = {A Brief Historical and Present Perspective of ELT in India}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-11}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296434}, publisher = {W{\"u}rzburg University Press}, pages = {11-17}, year = {2022}, abstract = {English language is being taught as a second foreign language in India. For most of the learners in India, English still a foreign language or target language. The study of this language is important to fulfill different kinds of academic and professional requirements. Still, there is a big gulf between demand and supply for which the failure of the system is largely responsible as its main emphasis on to adherence to the foreign curriculum. The government tries to impose this curriculum on English teachers, but, in fact, the curriculum is outdated.}, language = {en} } @incollection{Ali2022, author = {Ali, Zuraina}, title = {A Case Study of the Basic Learners' Struggles in Guessing from Context to Retain Words Learned}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-117}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296529}, publisher = {W{\"u}rzburg University Press}, pages = {117-124}, year = {2022}, abstract = {Guessing meaning from context is a challenging strategy for Second Language Learners (SLLs). In using the strategy, research found that poor students or low proficiency learners struggled in their attempts to use it. Mainly, it was reported that it was due to their vocabulary knowledge was limited. In another aspect, retaining vocabulary learnt is also important. Such is essential since learning vocabulary does not mean knowing the definition only. Yet, learners must also be able to use the vocabulary as they engage in language skills such as reading, writing, speaking and listening. The study aims at finding the hindrances faced among poor students' using contextual clues in retaining vocabulary. The study employed a case study to collect data from two basic students studying at a tertiary level. The study found that their hindrances in guessing meaning contexts were due to their being confused in guessing meaning when reading a sentence. Also, it was found that they were not able to find clues since they lacked vocabulary to guess correctly. The study implied that guessing meaning from context required sizeable vocabulary knowledge. Therefore, more training is necessary to assist basic learners in being successful in guessing from contexts.}, language = {en} } @incollection{KellenRibeiroWengDeToni2022, author = {Kellen Ribeiro Weng, Ana and De Toni, Plinio Marco}, title = {Differences and Similarities between the Fields of Bilingualism and Second Language Acquisition}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-19}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296447}, publisher = {W{\"u}rzburg University Press}, pages = {19-24}, year = {2022}, abstract = {No abstract available.}, language = {en} } @incollection{LutStarenkova2022, author = {Lut, Kateryna and Starenkova, Hanna}, title = {The Relationship between Language, Culture, and Development of Society}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-63}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296484}, publisher = {W{\"u}rzburg University Press}, pages = {63-72}, year = {2022}, abstract = {The paper analyses specific characteristics of language that influence the development of culture and societies. The problem of the connection between language and culture has occupied the minds of many famous scientists: some believe that language is a part of the culture as a whole; others think that language is only a form of cultural expression. Undoubtedly, language constitutes a vital component of the cultural background underlying social development. Language is an essential means of communication and interaction. However, language is at the same time sovereign about culture as a whole and can be separate from culture or compared to culture as an equal element (i.e., that language is neither a form nor a component of culture).}, language = {en} } @incollection{LubbunguMoongaMuyunietal.2022, author = {Lubbungu, Jive and Moonga, Ireen and Muyuni, Audrey and Zimba, Samson}, title = {English Language Variation: Creation of Zambian English (ZamEnglish)}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-53}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296477}, publisher = {W{\"u}rzburg University Press}, pages = {53-61}, year = {2022}, abstract = {In the present chapter, an attempt has been made to discuss the need to create Zambian English to address English language variations in Zambia. No language in the world can remain the same after interacting with other languages. The present chapter intends to propose and support the idea of using 'Zambian English' for both formal and informal business. Such a measure would create the communicative competence that the majority of the Zambians have always longed for. In Zambia, the purpose of using English language office is to deliberate day to day's business. On the contrary, this has been found to be an obstacle to those who lack principles of command in the language usage, but are able to construct sentences for communicative purposes yet are deprived in international interactions. The views expressed in this chapter are those of the language experts who were engaged in a conver� sation with regard to the possibility of creating what would be known as Zambian English (ZamEnglish).}, 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{LeGrossmannKrieger2022, type = {Working Paper}, author = {Le, Duy Thanh and Großmann, Marcel and Krieger, Udo R.}, title = {Cloudless Resource Monitoring in a Fog Computing System Enabled by an SDN/NFV Infrastructure}, 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-28072}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280723}, pages = {4}, year = {2022}, abstract = {Today's advanced Internet-of-Things applications raise technical challenges on cloud, edge, and fog computing. The design of an efficient, virtualized, context-aware, self-configuring orchestration system of a fog computing system constitutes a major development effort within this very innovative area of research. In this paper we describe the architecture and relevant implementation aspects of a cloudless resource monitoring system interworking with an SDN/NFV infrastructure. It realizes the basic monitoring component of the fundamental MAPE-K principles employed in autonomic computing. Here we present the hierarchical layering and functionality within the underlying fog nodes to generate a working prototype of an intelligent, self-managed orchestrator for advanced IoT applications and services. The latter system has the capability to monitor automatically various performance aspects of the resource allocation among multiple hosts of a fog computing system interconnected by SDN.}, subject = {Datennetz}, language = {en} } @techreport{HoewelerXiangHoepfneretal.2022, type = {Working Paper}, author = {H{\"o}weler, Malte and Xiang, Zuo and H{\"o}pfner, Franz and Nguyen, Giang T. and Fitzek, Frank H. P.}, title = {Towards Stateless Core Networks: Measuring State Access Patterns}, 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-28077}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280770}, pages = {4}, year = {2022}, abstract = {Future mobile communication networks, such as 5G and beyond, can benefit from Virtualized Network Functions (VNFs) when deployed on cloud infrastructures to achieve elasticity and scalability. However, new challenges arise as to managing states of Network Functions (NFs). Especially control plane VNFs, which are mainly found in cellular core networks like the 5G Core (5GC), received little attention since the shift towards virtualizing NFs. Most existing solutions for these core networks are often complex, intrusive, and are seldom compliant with the standard. With the emergence of 5G campus networks, UEs will be mainly machine-type devices. These devices communicate more deterministically, bringing new opportunities for elaborated state management. This work presents an emulation environment to perform rigorous measurements on state access patterns. The emulation comes with a fully parameterized Markov model for the UE to examine a wide variety of different devices. These measurements can then be used as a solid base for designing an efficient, simple, and standard conform state management solution that brings us further towards stateless core networks.}, subject = {Datennetz}, language = {en} } @techreport{GallenmuellerScholzStubbeetal.2022, type = {Working Paper}, author = {Gallenm{\"u}ller, Sebastian and Scholz, Dominik and Stubbe, Henning and Hauser, Eric and Carle, Georg}, title = {Reproducible by Design: Network Experiments with pos}, 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-28083}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280834}, pages = {4}, year = {2022}, abstract = {In scientific research, the independent reproduction of experiments is the source of trust. Detailed documentation is required to enable experiment reproduction. Reproducibility awards were created to honor the increased documentation effort. In this work, we propose a novel approach toward reproducible research—a structured experimental workflow that allows the creation of reproducible experiments without requiring additional efforts of the researcher. Moreover, we present our own testbed and toolchain, namely, plain orchestrating service (pos), which enables the creation of such experimental workflows. The experiment is documented by our proposed, fully scripted experiment structure. In addition, pos provides scripts enabling the automation of the bundling and release of all experimental artifacts. We provide an interactive environment where pos experiments can be executed and reproduced, available at https://gallenmu.github.io/single-server-experiment.}, subject = {Datennetz}, 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{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} } @article{MuessigKochColladosCuadradoetal.2022, author = {M{\"u}ssig, Stephan and Koch, Vanessa M. and Collados Cuadrado, Carlos and Bachmann, Julien and Thommes, Matthias and Barr, Ma{\"i}ssa K. S. and Mandel, Karl}, title = {Spray-Drying and Atomic Layer Deposition: Complementary Tools toward Fully Orthogonal Control of Bulk Composition and Surface Identity of Multifunctional Supraparticles}, series = {Small Methods}, volume = {6}, journal = {Small Methods}, number = {1}, doi = {10.1002/smtd.202101296}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-262521}, year = {2022}, abstract = {Spray-drying is a scalable process enabling one to assemble freely chosen nanoparticles into supraparticles. Atomic layer deposition (ALD) allows for controlled thin film deposition of a vast variety of materials including exotic ones that can hardly be synthesized by wet chemical methods. The properties of coated supraparticles are defined not only by the nanoparticle material chosen and the nanostructure adjusted during spray-drying but also by surface functionalities modified by ALD, if ALD is capable of modifying not only the outer surfaces but also surfaces buried inside the porous supraparticle. Simultaneously, surface accessibility in the porous supraparticles must be ensured to make use of all functionalized surfaces. In this work, iron oxide supraparticles are utilized as a model substrate as their magnetic properties enable the use of advanced magnetic characterization methods. Detailed information about the structural evolution upon individual ALD cycles of aluminium oxide, zinc oxide and titanium dioxide are thereby revealed and confirmed by gas sorption analyses. This demonstrates a powerful and versatile approach to freely designing the functionality of future materials by combination of spray-drying and ALD.}, language = {en} } @article{Haidacher2022, author = {Haidacher, Bernhard}, title = {The concept of confix in German, French, and Italian - a comparative study}, series = {promptus - W{\"u}rzburger Beitr{\"a}ge zur Romanistik}, volume = {8}, journal = {promptus - W{\"u}rzburger Beitr{\"a}ge zur Romanistik}, issn = {2364-6705}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-329756}, pages = {63-83}, year = {2022}, abstract = {Despite some critical voices, in German linguistics the concept of confix can meanwhile be considered as an established morpheme category. Schmidt (1987) introduced the term into German to describe bound morphemes that are lexical, but not inflectable. Since the 2000s, an increasing number of publications deal with the phenomenon and the term has begun to enter linguistic reference works as well. In French, the situation is completely different due to the structure of the language (poor in compounds and mostly post-determinative). Although the term and the concept have originall y been coined by the French structuralist Andr{\´e} Martinet ([1961] \(^3\)1980 ), the denomination itself is barely present in Romance linguistics. French researchers usually take different approaches to discuss the phenomenon (e.g., neoclassical compounds, constructed lexemes). In Italian, the denominations confisso/ confissazione are first used by De Mauro (1999), who adopts both the term and concept directly from Martinet; moreover, they can be found in some contributions on word formation and lexicology (e.g., Adamo/Della Valle 2008). Nevertheless, the Italian termino-logy remains heterogeneous, with some researchers still using the terms prefissoide/suffissoide coined by Migliorini (1963). As I will show by comparing the languages in question, the terminology and the concept of confixes vary greatly between Romance and Germanic languages.}, language = {en} } @incollection{Mangada2022, author = {Mangada, Gladys G.}, title = {ESL/EFL in Teaching and Learning Process}, series = {Studies in Modern English}, booktitle = {Studies in Modern English}, editor = {Lazebna, Nataliia and Kumar, Dinesh}, publisher = {W{\"u}rzburg University Press}, address = {W{\"u}rzburg}, doi = {10.25972/WUP-978-3-95826-199-0-73}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-296490}, publisher = {W{\"u}rzburg University Press}, pages = {73-79}, year = {2022}, abstract = {Teaching comprises all types of disciplines and teachers need to look outside the confines of English as a Second Language. The acquisition of knowledge comes in a variety of the learners' educational potential. English as a Second Language in teaching and learning, focuses on active learner's involvement and reduction of coercion. Indeed, Gibran's thoughts remain true that "wisdom leads one to discuss his or her potentials. To realize this, teachers in all educational levels have to portray a less dominant classroom role in accord with the importance of classroom interaction in the teaching learning process. N.A. Flaunders retorted that "in the average classroom someone is talking for two-thirds of the time, two-thirds of the task is direct influence." What does this mean? Students' participation or interaction in the classroom has a significant content to enhance their linguistic competence and its core basis is how to use the language as the most important factor in the classroom. Comprehending the information caters one to establish a fair and well-balanced condition that teachers are facilitators, and the learners are to stay in the frontline. In today's classroom setting, the adoption-adaption of teaching strategies focuses on the learners' ability to have a strong command or fluency of the language. ESL is learned around the globe and the learners' interests are the primary goals in the teaching and learning pro� cess. Colin Blakemore once said that "True knowledge, as Plato argues, must be within us all, and learning consists of solely of discussing what we already know." In an ESL classroom, discovery of knowledge is not a new game. Teachers do perform their tasks and the learners serve not as passive listeners but as active recipients in the transformation-sharing of all the five macro skills namely speaking, reading, writing, listening, and viewing. In fact, if commitment, knowledge of subject-matter for independent learning, and management of learning are packaged in one big box, both the teachers and the learners will operate a mutual process of generating a lively culture and quality of educational life. With the aforementioned views I had experienced in teaching ESL, the teacher's passion for teaching and attitude in dealing with the learners create a strong impact on the learners cognitive, affective, and psychomotor domains.}, language = {en} } @inproceedings{EppleeLangbehn2021, author = {Eppl{\´e}e, Rafael and Langbehn, Eike}, title = {Overlapping Architecture: Implementation of Impossible Spaces in Virtual Reality Games}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-246045}, pages = {37-46}, year = {2021}, abstract = {Natural walking in virtual reality games is constrained by the physical boundaries defined by the size of the player's tracking space. Impossible spaces, a redirected walking technique, enlarge the virtual environment by creating overlapping architecture and letting multiple locations occupy the same physical space. Within certain thresholds, this is subtle to the player. In this paper, we present our approach to implement such impossible spaces and describe how we handled challenges like objects with simulated physics or precomputed global illumination.}, language = {en} } @techreport{MetzgerSchroederRafetseder2021, type = {Working Paper}, author = {Metzger, Florian and Schr{\"o}der, Svenja and Rafetseder, Albert}, title = {Subjective And Objective Assessment Of Video Game Context Factors}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-242471}, pages = {7}, year = {2021}, abstract = {The recently published ITU-T Recommendation G1.032 proposes a list of factors that may influence cloud and online gaming Quality of Experience (QoE). This paper provides two practical evaluations of proposed system and context influence factors: First, it investigates through an online survey (n=488) the popularity of platforms, preferred ways of distribution, and motivational aspects including subjective valuations of characteristics offered by today's prevalent gaming platforms. Second, the paper evaluates a large dataset of objective metrics for various gaming platforms: game lists, playthrough lengths, prices, etc., and contrasts these metrics against the gamers' opinions. The combined data-driven approach presented in this paper complements in-person and lab studies usually employed.}, subject = {Videospiel}, language = {en} } @inproceedings{KlemkeSanusiRose2021, author = {Klemke, Roland and Sanusi, Khaleel Asyraaf Mat and Rose, Melina}, title = {Immersive Game Technologies for Innovative Education - A Method for Experimental Interdisciplinary Technology Transfer}, 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-245843}, pages = {1-8}, year = {2021}, abstract = {Immersive, sensor-enabled technologies such as augmented and virtual reality expand the way human beings interact with computers significantly. While these technologies are widely explored in entertainment games, they also offer possibilities for educational use. However,their uptake in education is so far very limited. Within the ImTech4Ed project, we aim at systematically exploring the power of interdisciplinary, international hackathons as a novel method to create immersive educational game prototypes and as a means to transfer these innovative technical prototypes into educational use. To achieve this, we bring together game design and development, where immersive and interactive solutions are designed and developed; computer science, where the technological foundations for immersive technologies and for scalable architectures for these are created; and teacher education, where future teachers are educated. This article reports on the concept and design of these hackathons.}, language = {en} }