[{"ddc":["006"],"user_id":"35343","publisher":"IEEE","_id":"19609","has_accepted_license":"1","status":"public","oa":"1","project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"citation":{"ieee":"S. B. Schneider <i>et al.</i>, “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning,” in <i>IEEE International Conference on Network and Service Management (CNSM)</i>, 2020.","apa":"Schneider, S. B., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., Khalili, R., &#38; Hecker, A. (2020). Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE.","chicago":"Schneider, Stefan Balthasar, Adnan Manzoor, Haydar Qarawlus, Rafael Schellenberg, Holger Karl, Ramin Khalili, and Artur Hecker. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” In <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE, 2020.","short":"S.B. Schneider, A. Manzoor, H. Qarawlus, R. Schellenberg, H. Karl, R. Khalili, A. Hecker, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","mla":"Schneider, Stefan Balthasar, et al. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” <i>IEEE International Conference on Network and Service Management (CNSM)</i>, IEEE, 2020.","bibtex":"@inproceedings{Schneider_Manzoor_Qarawlus_Schellenberg_Karl_Khalili_Hecker_2020, title={Self-Driving Network and Service Coordination Using Deep Reinforcement Learning}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Manzoor, Adnan and Qarawlus, Haydar and Schellenberg, Rafael and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2020} }","ama":"Schneider SB, Manzoor A, Qarawlus H, et al. Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In: <i>IEEE International Conference on Network and Service Management (CNSM)</i>. IEEE; 2020."},"file_date_updated":"2020-09-22T06:36:00Z","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:54:08Z","author":[{"orcid":"0000-0001-8210-4011","last_name":"Schneider","first_name":"Stefan Balthasar","full_name":"Schneider, Stefan Balthasar","id":"35343"},{"full_name":"Manzoor, Adnan","first_name":"Adnan","last_name":"Manzoor"},{"full_name":"Qarawlus, Haydar","first_name":"Haydar","last_name":"Qarawlus"},{"full_name":"Schellenberg, Rafael","first_name":"Rafael","last_name":"Schellenberg"},{"id":"126","last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger"},{"last_name":"Khalili","first_name":"Ramin","full_name":"Khalili, Ramin"},{"full_name":"Hecker, Artur","first_name":"Artur","last_name":"Hecker"}],"year":"2020","title":"Self-Driving Network and Service Coordination Using Deep Reinforcement Learning","department":[{"_id":"75"}],"keyword":["self-driving networks","self-learning","network coordination","service coordination","reinforcement learning","deep learning","nfv"],"type":"conference","date_created":"2020-09-22T06:28:22Z","file":[{"creator":"stschn","date_created":"2020-09-22T06:29:16Z","relation":"main_file","date_updated":"2020-09-22T06:36:00Z","file_name":"ris_with_copyright.pdf","access_level":"open_access","file_size":642999,"file_id":"19610","content_type":"application/pdf"}],"abstract":[{"lang":"eng","text":"Modern services comprise interconnected components,\r\ne.g., microservices in a service mesh, that can scale and\r\nrun on multiple nodes across the network on demand. To process\r\nincoming traffic, service components have to be instantiated and\r\ntraffic assigned to these instances, taking capacities and changing\r\ndemands into account. This challenge is usually solved with\r\ncustom approaches designed by experts. While this typically\r\nworks well for the considered scenario, the models often rely\r\non unrealistic assumptions or on knowledge that is not available\r\nin practice (e.g., a priori knowledge).\r\n\r\nWe propose a novel deep reinforcement learning approach that\r\nlearns how to best coordinate services and is geared towards\r\nrealistic assumptions. It interacts with the network and relies on\r\navailable, possibly delayed monitoring information. Rather than\r\ndefining a complex model or an algorithm how to achieve an\r\nobjective, our model-free approach adapts to various objectives\r\nand traffic patterns. An agent is trained offline without expert\r\nknowledge and then applied online with minimal overhead. Compared\r\nto a state-of-the-art heuristic, it significantly improves flow\r\nthroughput and overall network utility on real-world network\r\ntopologies and traffic traces. It also learns to optimize different\r\nobjectives, generalizes to scenarios with unseen, stochastic traffic\r\npatterns, and scales to large real-world networks."}],"publication":"IEEE International Conference on Network and Service Management (CNSM)"},{"type":"conference","place":"Thessaloniki, Greece","date_created":"2020-10-21T14:41:18Z","project":[{"_id":"27","name":"Akustische Sensornetzwerke - Teilprojekt \"Verteilte akustische Signalverarbeitung über funkbasierte Sensornetzwerke"}],"abstract":[{"text":"Upcoming sensing applications (acoustic or video) will have high processing requirements not satisfiable by a single node or need input from multiple sources (e.g., speaker localization). Offloading these applications to cloud or mobile edge is an option, but when running in a wireless senor network (WSN), it might entail needlessly high data rate and latency. An alternative is to spread processing inside the WSN, which is particularly attractive if the application comprises individual components. This scenario is typical for applications like acoustic signal processing. Mapping components to nodes can be formulated as wireless version of the NP-hard Virtual Network Embedding (VNE) problem, for which various heuristics exist. We propose a Reinforcement Learning (RL) framework, which relies on Q-Learning and uses either Greedy Epsilon or Epsilon Decay for exploration. We compare both exploration methods to the result of an optimization approach and show empirically that the RL framework achieves good results in terms of network delay within few number of steps.","lang":"eng"}],"citation":{"chicago":"Afifi, Haitham, and Holger Karl. “Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks.” In <i>2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020)</i>. Thessaloniki, Greece, 2020.","short":"H. Afifi, H. Karl, in: 2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020), Thessaloniki, Greece, 2020.","ieee":"H. Afifi and H. Karl, “Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks,” in <i>2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020)</i>, 2020.","apa":"Afifi, H., &#38; Karl, H. (2020). Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks. In <i>2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020)</i>. Thessaloniki, Greece.","bibtex":"@inproceedings{Afifi_Karl_2020, place={Thessaloniki, Greece}, title={Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks}, booktitle={2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020)}, author={Afifi, Haitham and Karl, Holger}, year={2020} }","ama":"Afifi H, Karl H. Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks. In: <i>2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020)</i>. Thessaloniki, Greece; 2020.","mla":"Afifi, Haitham, and Holger Karl. “Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks.” <i>2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob’2020)</i>, 2020."},"publication":"2020 Thirteenth International Workshop on Selected Topics in Mobile and Wireless Computing (STWiMob'2020)","user_id":"65718","_id":"20164","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:54:20Z","author":[{"id":"65718","last_name":"Afifi","first_name":"Haitham","full_name":"Afifi, Haitham"},{"id":"126","last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger"}],"year":"2020","status":"public","title":"Reinforcement Learning for Virtual Network Embedding in Wireless Sensor Networks"},{"doi":"https://doi.org/10.1109/CCGrid49817.2020.00010","main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/9139642"}],"language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:53:04Z","publication_status":"published","year":"2020","title":"Coflow Scheduling with Performance Guarantees for Data Center Applications","author":[{"last_name":"Hasnain","first_name":"Asif","full_name":"Hasnain, Asif","id":"63288"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"}],"keyword":["Coflow","Scheduling","Deadlines","Data centers"],"type":"conference","department":[{"_id":"75"}],"date_created":"2020-06-06T07:40:45Z","abstract":[{"text":"Data-parallel applications run on cluster of servers in a datacenter and their communication triggers correlated resource demand on multiple links that can be abstracted as coflow. They often desire predictable network performance, which can be passed to network via coflow abstraction for application-aware network scheduling. In this paper, we propose a heuristic and an optimization algorithm for predictable network performance such that they guarantee coflows completion within their deadlines. The algorithms also ensure high network utilization, i.e., it's work-conserving, and avoids starvation of coflows. We evaluate both algorithms via trace-driven simulation and show that they admit 1.1x more coflows than the Varys scheme while meeting their deadlines.","lang":"eng"}],"publication":"2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)","ddc":["000"],"user_id":"63288","_id":"17082","publisher":"IEEE Computer Society","status":"public","conference":{"name":"2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)","location":"Melbourne, Australia"},"project":[{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"},{"name":"SFB 901","_id":"1"}],"citation":{"bibtex":"@inproceedings{Hasnain_Karl_2020, title={Coflow Scheduling with Performance Guarantees for Data Center Applications}, DOI={<a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>}, booktitle={2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)}, publisher={IEEE Computer Society}, author={Hasnain, Asif and Karl, Holger}, year={2020} }","ama":"Hasnain A, Karl H. Coflow Scheduling with Performance Guarantees for Data Center Applications. In: <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>. IEEE Computer Society; 2020. doi:<a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>","mla":"Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees for Data Center Applications.” <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>, IEEE Computer Society, 2020, doi:<a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>.","short":"A. Hasnain, H. Karl, in: 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID), IEEE Computer Society, 2020.","chicago":"Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees for Data Center Applications.” In <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>. IEEE Computer Society, 2020. <a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>.","ieee":"A. Hasnain and H. Karl, “Coflow Scheduling with Performance Guarantees for Data Center Applications,” in <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>, Melbourne, Australia, 2020.","apa":"Hasnain, A., &#38; Karl, H. (2020). Coflow Scheduling with Performance Guarantees for Data Center Applications. In <i>2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)</i>. Melbourne, Australia: IEEE Computer Society. <a href=\"https://doi.org/10.1109/CCGrid49817.2020.00010\">https://doi.org/10.1109/CCGrid49817.2020.00010</a>"}},{"type":"conference","department":[{"_id":"75"}],"file":[{"date_created":"2020-03-03T11:42:16Z","creator":"stschn","content_type":"application/pdf","file_id":"16220","access_level":"open_access","file_size":476590,"file_name":"ris_preprint.pdf","date_updated":"2020-03-03T11:42:16Z","relation":"main_file"}],"date_created":"2020-03-03T11:42:22Z","abstract":[{"lang":"eng","text":"Network function virtualization (NFV) proposes\r\nto replace physical middleboxes with more flexible virtual\r\nnetwork functions (VNFs). To dynamically adjust to everchanging\r\ntraffic demands, VNFs have to be instantiated and\r\ntheir allocated resources have to be adjusted on demand.\r\nDeciding the amount of allocated resources is non-trivial.\r\nExisting optimization approaches often assume fixed resource\r\nrequirements for each VNF instance. However, this can easily\r\nlead to either waste of resources or bad service quality if too\r\nmany or too few resources are allocated.\r\n\r\nTo solve this problem, we train machine learning models\r\non real VNF data, containing measurements of performance\r\nand resource requirements. For each VNF, the trained models\r\ncan then accurately predict the required resources to handle\r\na certain traffic load. We integrate these machine learning\r\nmodels into an algorithm for joint VNF scaling and placement\r\nand evaluate their impact on resulting VNF placements. Our\r\nevaluation based on real-world data shows that using suitable\r\nmachine learning models effectively avoids over- and underallocation\r\nof resources, leading to up to 12 times lower resource\r\nconsumption and better service quality with up to 4.5 times\r\nlower total delay than using standard fixed resource allocation."}],"publication":"IEEE Conference on Network Softwarization (NetSoft)","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:52:46Z","title":"Machine Learning for Dynamic Resource Allocation in Network Function Virtualization","year":"2020","author":[{"id":"35343","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","last_name":"Schneider"},{"full_name":"Satheeschandran, Narayanan Puthenpurayil","first_name":"Narayanan Puthenpurayil","last_name":"Satheeschandran"},{"id":"13271","first_name":"Manuel","last_name":"Peuster","full_name":"Peuster, Manuel"},{"last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger","id":"126"}],"oa":"1","project":[{"name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493","_id":"28"},{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"file_date_updated":"2020-03-03T11:42:16Z","citation":{"chicago":"Schneider, Stefan Balthasar, Narayanan Puthenpurayil Satheeschandran, Manuel Peuster, and Holger Karl. “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization.” In <i>IEEE Conference on Network Softwarization (NetSoft)</i>. IEEE, 2020.","short":"S.B. Schneider, N.P. Satheeschandran, M. Peuster, H. Karl, in: IEEE Conference on Network Softwarization (NetSoft), IEEE, 2020.","apa":"Schneider, S. B., Satheeschandran, N. P., Peuster, M., &#38; Karl, H. (2020). Machine Learning for Dynamic Resource Allocation in Network Function Virtualization. In <i>IEEE Conference on Network Softwarization (NetSoft)</i>. Ghent, Belgium: IEEE.","ieee":"S. B. Schneider, N. P. Satheeschandran, M. Peuster, and H. Karl, “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization,” in <i>IEEE Conference on Network Softwarization (NetSoft)</i>, Ghent, Belgium, 2020.","ama":"Schneider SB, Satheeschandran NP, Peuster M, Karl H. Machine Learning for Dynamic Resource Allocation in Network Function Virtualization. In: <i>IEEE Conference on Network Softwarization (NetSoft)</i>. IEEE; 2020.","bibtex":"@inproceedings{Schneider_Satheeschandran_Peuster_Karl_2020, title={Machine Learning for Dynamic Resource Allocation in Network Function Virtualization}, booktitle={IEEE Conference on Network Softwarization (NetSoft)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Satheeschandran, Narayanan Puthenpurayil and Peuster, Manuel and Karl, Holger}, year={2020} }","mla":"Schneider, Stefan Balthasar, et al. “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization.” <i>IEEE Conference on Network Softwarization (NetSoft)</i>, IEEE, 2020."},"ddc":["000"],"user_id":"35343","_id":"16219","publisher":"IEEE","has_accepted_license":"1","status":"public","conference":{"location":"Ghent, Belgium","name":"IEEE Conference on Network Softwarization (NetSoft)"}},{"date_created":"2020-03-03T11:51:22Z","department":[{"_id":"75"}],"type":"conference","citation":{"bibtex":"@inproceedings{Zafeiropoulos_Fotopoulou_Peuster_Schneider_Gouvas_Behnke_Müller_Bök_Trakadas_Karkazis_et al._2020, title={Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case}, booktitle={IEEE Conference on Network Softwarization (NetSoft)}, author={Zafeiropoulos, A. and Fotopoulou, E. and Peuster, Manuel and Schneider, Stefan Balthasar and Gouvas, P. and Behnke, D. and Müller, M. and Bök, P. and Trakadas, P. and Karkazis, P. and et al.}, year={2020} }","chicago":"Zafeiropoulos, A., E. Fotopoulou, Manuel Peuster, Stefan Balthasar Schneider, P. Gouvas, D. Behnke, M. Müller, et al. “Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case.” In <i>IEEE Conference on Network Softwarization (NetSoft)</i>, 2020.","short":"A. Zafeiropoulos, E. Fotopoulou, M. Peuster, S.B. Schneider, P. Gouvas, D. Behnke, M. Müller, P. Bök, P. Trakadas, P. Karkazis, H. Karl, in: IEEE Conference on Network Softwarization (NetSoft), 2020.","ama":"Zafeiropoulos A, Fotopoulou E, Peuster M, et al. Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case. In: <i>IEEE Conference on Network Softwarization (NetSoft)</i>. ; 2020.","ieee":"A. Zafeiropoulos <i>et al.</i>, “Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case,” in <i>IEEE Conference on Network Softwarization (NetSoft)</i>, 2020.","apa":"Zafeiropoulos, A., Fotopoulou, E., Peuster, M., Schneider, S. B., Gouvas, P., Behnke, D., … Karl, H. (2020). Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case. In <i>IEEE Conference on Network Softwarization (NetSoft)</i>.","mla":"Zafeiropoulos, A., et al. “Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case.” <i>IEEE Conference on Network Softwarization (NetSoft)</i>, 2020."},"publication":"IEEE Conference on Network Softwarization (NetSoft)","project":[{"grant_number":"761493","_id":"28","name":"5G Development and validation platform for global industry-specific network services and Apps"}],"_id":"16222","language":[{"iso":"eng"}],"user_id":"35343","author":[{"full_name":"Zafeiropoulos, A.","first_name":"A.","last_name":"Zafeiropoulos"},{"full_name":"Fotopoulou, E.","last_name":"Fotopoulou","first_name":"E."},{"last_name":"Peuster","first_name":"Manuel","full_name":"Peuster, Manuel","id":"13271"},{"id":"35343","full_name":"Schneider, Stefan Balthasar","last_name":"Schneider","first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011"},{"full_name":"Gouvas, P.","last_name":"Gouvas","first_name":"P."},{"first_name":"D.","last_name":"Behnke","full_name":"Behnke, D."},{"last_name":"Müller","first_name":"M.","full_name":"Müller, M."},{"full_name":"Bök, P.","last_name":"Bök","first_name":"P."},{"full_name":"Trakadas, P.","first_name":"P.","last_name":"Trakadas"},{"first_name":"P.","last_name":"Karkazis","full_name":"Karkazis, P."},{"full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger","id":"126"}],"year":"2020","title":"Benchmarking and Profiling 5G Verticals' Applications: An Industrial IoT Use Case","status":"public","date_updated":"2022-01-06T06:52:46Z"},{"publication_status":"published","date_updated":"2022-01-06T06:52:48Z","publication_identifier":{"issn":["2214-2096"]},"author":[{"full_name":"Nomikos, Nikolaos","first_name":"Nikolaos","last_name":"Nomikos"},{"first_name":"Emmanouel T.","last_name":"Michailidis","full_name":"Michailidis, Emmanouel T."},{"full_name":"Trakadas, Panagiotis","first_name":"Panagiotis","last_name":"Trakadas"},{"last_name":"Vouyioukas","first_name":"Demosthenes","full_name":"Vouyioukas, Demosthenes"},{"first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger","id":"126"},{"first_name":"Josep","last_name":"Martrat","full_name":"Martrat, Josep"},{"last_name":"Zahariadis","first_name":"Theodore","full_name":"Zahariadis, Theodore"},{"full_name":"Papadopoulos, Konstantinos","last_name":"Papadopoulos","first_name":"Konstantinos"},{"full_name":"Voliotis, Stamatis","first_name":"Stamatis","last_name":"Voliotis"}],"status":"public","year":"2020","title":"A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices","user_id":"126","doi":"10.1016/j.vehcom.2020.100250","_id":"16278","language":[{"iso":"eng"}],"article_number":"100250","abstract":[{"text":"Currently, the coexistence of multiple users and devices challenges the network's ability to reliably connect them. This article proposes a novel communication architecture that satisfies the requirements of fifth-generation (5G) mobile network applications. In particular, this architecture extends and combines ultra-dense networking (UDN), multi-access edge computing (MEC), and virtual infrastructure manager (VIM) concepts to provide a flexible network of moving radio access (RA) nodes, flying or moving to areas where users and devices struggle for connectivity and data rate. Furthermore, advances in radio communications and non-orthogonal multiple access (NOMA), virtualization technologies and energy-awareness mechanisms are integrated towards a mobile UDN that not only allows RA nodes to follow the user but also enables the virtualized network functions (VNFs) to adapt to user mobility by migrating from one node to another. Performance evaluation shows that the underlying network improves connectivity of users and devices through the flexible deployment of moving RA nodes and the use of NOMA.","lang":"eng"}],"citation":{"mla":"Nomikos, Nikolaos, et al. “A UAV-Based Moving 5G RAN for Massive Connectivity of Mobile Users and IoT Devices.” <i>Vehicular Communications</i>, 100250, 2020, doi:<a href=\"https://doi.org/10.1016/j.vehcom.2020.100250\">10.1016/j.vehcom.2020.100250</a>.","ama":"Nomikos N, Michailidis ET, Trakadas P, et al. A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices. <i>Vehicular Communications</i>. 2020. doi:<a href=\"https://doi.org/10.1016/j.vehcom.2020.100250\">10.1016/j.vehcom.2020.100250</a>","bibtex":"@article{Nomikos_Michailidis_Trakadas_Vouyioukas_Karl_Martrat_Zahariadis_Papadopoulos_Voliotis_2020, title={A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices}, DOI={<a href=\"https://doi.org/10.1016/j.vehcom.2020.100250\">10.1016/j.vehcom.2020.100250</a>}, number={100250}, journal={Vehicular Communications}, author={Nomikos, Nikolaos and Michailidis, Emmanouel T. and Trakadas, Panagiotis and Vouyioukas, Demosthenes and Karl, Holger and Martrat, Josep and Zahariadis, Theodore and Papadopoulos, Konstantinos and Voliotis, Stamatis}, year={2020} }","apa":"Nomikos, N., Michailidis, E. T., Trakadas, P., Vouyioukas, D., Karl, H., Martrat, J., … Voliotis, S. (2020). A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices. <i>Vehicular Communications</i>. <a href=\"https://doi.org/10.1016/j.vehcom.2020.100250\">https://doi.org/10.1016/j.vehcom.2020.100250</a>","ieee":"N. Nomikos <i>et al.</i>, “A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices,” <i>Vehicular Communications</i>, 2020.","short":"N. Nomikos, E.T. Michailidis, P. Trakadas, D. Vouyioukas, H. Karl, J. Martrat, T. Zahariadis, K. Papadopoulos, S. Voliotis, Vehicular Communications (2020).","chicago":"Nomikos, Nikolaos, Emmanouel T. Michailidis, Panagiotis Trakadas, Demosthenes Vouyioukas, Holger Karl, Josep Martrat, Theodore Zahariadis, Konstantinos Papadopoulos, and Stamatis Voliotis. “A UAV-Based Moving 5G RAN for Massive Connectivity of Mobile Users and IoT Devices.” <i>Vehicular Communications</i>, 2020. <a href=\"https://doi.org/10.1016/j.vehcom.2020.100250\">https://doi.org/10.1016/j.vehcom.2020.100250</a>."},"publication":"Vehicular Communications","department":[{"_id":"75"}],"type":"journal_article","date_created":"2020-03-10T15:59:56Z"},{"publication_status":"published","date_updated":"2022-01-06T06:52:48Z","year":"2020","title":"Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey","status":"public","publication_identifier":{"issn":["1536-1284","1558-0687"]},"author":[{"first_name":"Feng","last_name":"Li","full_name":"Li, Feng"},{"last_name":"Yu","first_name":"Dongxiao","full_name":"Yu, Dongxiao"},{"full_name":"Yang, Huan","last_name":"Yang","first_name":"Huan"},{"first_name":"Jiguo","last_name":"Yu","full_name":"Yu, Jiguo"},{"id":"126","full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger"},{"last_name":"Cheng","first_name":"Xiuzhen","full_name":"Cheng, Xiuzhen"}],"user_id":"126","doi":"10.1109/mwc.001.1900280","page":"24-30","language":[{"iso":"eng"}],"_id":"16280","abstract":[{"lang":"eng","text":"Assigning bands of the wireless spectrum as resources to users is a common problem in wireless networks. Typically, frequency bands were assumed to be available in a stable manner. Nevertheless, in recent scenarios where wireless networks may be deployed in unknown environments, spectrum competition is considered, making it uncertain whether a frequency band is available at all or at what quality. To fully exploit such resources with uncertain availability, the multi-armed bandit (MAB) method, a representative online learning technique, has been applied to design spectrum scheduling algorithms. This article surveys such proposals. We describe the following three aspects: how to model spectrum scheduling problems within the MAB framework, what the main thread is following which prevalent algorithms are designed, and how to evaluate algorithm performance and complexity. We also give some promising directions for future research in related fields."}],"publication":"IEEE Wireless Communications","citation":{"apa":"Li, F., Yu, D., Yang, H., Yu, J., Karl, H., &#38; Cheng, X. (2020). Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey. <i>IEEE Wireless Communications</i>, 24–30. <a href=\"https://doi.org/10.1109/mwc.001.1900280\">https://doi.org/10.1109/mwc.001.1900280</a>","mla":"Li, Feng, et al. “Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey.” <i>IEEE Wireless Communications</i>, 2020, pp. 24–30, doi:<a href=\"https://doi.org/10.1109/mwc.001.1900280\">10.1109/mwc.001.1900280</a>.","ieee":"F. Li, D. Yu, H. Yang, J. Yu, H. Karl, and X. Cheng, “Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey,” <i>IEEE Wireless Communications</i>, pp. 24–30, 2020.","chicago":"Li, Feng, Dongxiao Yu, Huan Yang, Jiguo Yu, Holger Karl, and Xiuzhen Cheng. “Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey.” <i>IEEE Wireless Communications</i>, 2020, 24–30. <a href=\"https://doi.org/10.1109/mwc.001.1900280\">https://doi.org/10.1109/mwc.001.1900280</a>.","ama":"Li F, Yu D, Yang H, Yu J, Karl H, Cheng X. Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey. <i>IEEE Wireless Communications</i>. 2020:24-30. doi:<a href=\"https://doi.org/10.1109/mwc.001.1900280\">10.1109/mwc.001.1900280</a>","short":"F. Li, D. Yu, H. Yang, J. Yu, H. Karl, X. Cheng, IEEE Wireless Communications (2020) 24–30.","bibtex":"@article{Li_Yu_Yang_Yu_Karl_Cheng_2020, title={Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey}, DOI={<a href=\"https://doi.org/10.1109/mwc.001.1900280\">10.1109/mwc.001.1900280</a>}, journal={IEEE Wireless Communications}, author={Li, Feng and Yu, Dongxiao and Yang, Huan and Yu, Jiguo and Karl, Holger and Cheng, Xiuzhen}, year={2020}, pages={24–30} }"},"type":"journal_article","department":[{"_id":"75"}],"date_created":"2020-03-10T16:02:30Z"},{"user_id":"35343","publisher":"IEEE","_id":"16400","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:52:50Z","title":"Cloud-Native Threat Detection and Containment for Smart Manufacturing","year":"2020","status":"public","conference":{"name":"IEEE Conference on Network Softwarization (NetSoft) Demo Track","location":"Ghent, Belgium"},"author":[{"first_name":"Marcel","last_name":"Müller","full_name":"Müller, Marcel"},{"last_name":"Behnke","first_name":"Daniel","full_name":"Behnke, Daniel"},{"last_name":"Bök","first_name":"Patrick-Benjamin","full_name":"Bök, Patrick-Benjamin"},{"last_name":"Schneider","first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","id":"35343"},{"first_name":"Manuel","last_name":"Peuster","full_name":"Peuster, Manuel","id":"13271"},{"last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger","id":"126"}],"type":"conference","department":[{"_id":"75"}],"place":"Ghent, Belgium","date_created":"2020-04-03T11:53:00Z","abstract":[{"lang":"eng","text":"Softwarization facilitates the introduction of smart\r\nmanufacturing applications in the industry. Manifold devices\r\nsuch as machine computers, Industrial IoT devices, tablets,\r\nsmartphones and smart glasses are integrated into factory networks\r\nto enable shop floor digitalization and big data analysis. To\r\nhandle the increasing number of devices and the resulting traffic,\r\na flexible and scalable factory network is necessary which can be\r\nrealized using softwarization technologies like Network Function\r\nVirtualization (NFV). However, the security risks increase with\r\nthe increasing number of new devices, so that cyber security must\r\nalso be considered in NFV-based networks.\r\n\r\nTherefore, extending our previous work, we showcase threat\r\ndetection using a cloud-native NFV-driven intrusion detection\r\nsystem (IDS) that is integrated in our industrial-specific network\r\nservices. As a result of the threat detection, the affected network\r\nservice is put into quarantine via automatic network reconfiguration.\r\nWe use the 5GTANGO service platform to deploy our\r\ndeveloped network services on Kubernetes and to initiate the\r\nnetwork reconfiguration."}],"project":[{"name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28","grant_number":"761493"},{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"publication":"IEEE Conference on Network Softwarization (NetSoft) Demo Track","citation":{"mla":"Müller, Marcel, et al. “Cloud-Native Threat Detection and Containment for Smart Manufacturing.” <i>IEEE Conference on Network Softwarization (NetSoft) Demo Track</i>, IEEE, 2020.","bibtex":"@inproceedings{Müller_Behnke_Bök_Schneider_Peuster_Karl_2020, place={Ghent, Belgium}, title={Cloud-Native Threat Detection and Containment for Smart Manufacturing}, booktitle={IEEE Conference on Network Softwarization (NetSoft) Demo Track}, publisher={IEEE}, author={Müller, Marcel and Behnke, Daniel and Bök, Patrick-Benjamin and Schneider, Stefan Balthasar and Peuster, Manuel and Karl, Holger}, year={2020} }","ama":"Müller M, Behnke D, Bök P-B, Schneider SB, Peuster M, Karl H. Cloud-Native Threat Detection and Containment for Smart Manufacturing. In: <i>IEEE Conference on Network Softwarization (NetSoft) Demo Track</i>. Ghent, Belgium: IEEE; 2020.","ieee":"M. Müller, D. Behnke, P.-B. Bök, S. B. Schneider, M. Peuster, and H. Karl, “Cloud-Native Threat Detection and Containment for Smart Manufacturing,” in <i>IEEE Conference on Network Softwarization (NetSoft) Demo Track</i>, Ghent, Belgium, 2020.","apa":"Müller, M., Behnke, D., Bök, P.-B., Schneider, S. B., Peuster, M., &#38; Karl, H. (2020). Cloud-Native Threat Detection and Containment for Smart Manufacturing. In <i>IEEE Conference on Network Softwarization (NetSoft) Demo Track</i>. Ghent, Belgium: IEEE.","short":"M. Müller, D. Behnke, P.-B. Bök, S.B. Schneider, M. Peuster, H. Karl, in: IEEE Conference on Network Softwarization (NetSoft) Demo Track, IEEE, Ghent, Belgium, 2020.","chicago":"Müller, Marcel, Daniel Behnke, Patrick-Benjamin Bök, Stefan Balthasar Schneider, Manuel Peuster, and Holger Karl. “Cloud-Native Threat Detection and Containment for Smart Manufacturing.” In <i>IEEE Conference on Network Softwarization (NetSoft) Demo Track</i>. Ghent, Belgium: IEEE, 2020."}},{"language":[{"iso":"eng"}],"doi":"10.1007/s12599-019-00627-x","author":[{"id":"126","full_name":"Karl, Holger","first_name":"Holger","last_name":"Karl"},{"first_name":"Dennis","last_name":"Kundisch","full_name":"Kundisch, Dennis","id":"21117"},{"id":"15523","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm","last_name":"Meyer auf der Heide"},{"full_name":"Wehrheim, Heike","first_name":"Heike","last_name":"Wehrheim","id":"573"}],"year":"2020","title":"A Case for a New IT Ecosystem: On-The-Fly Computing","intvolume":"        62","date_updated":"2022-12-02T09:27:17Z","publication_status":"published","date_created":"2019-10-10T13:41:06Z","file":[{"date_updated":"2019-12-12T10:24:47Z","relation":"main_file","access_level":"closed","file_size":454532,"file_name":"Karl2019_Article_ACaseForANewITEcosystemOn-The-.pdf","content_type":"application/pdf","success":1,"file_id":"15311","creator":"ups","date_created":"2019-12-12T10:24:47Z"}],"department":[{"_id":"276"},{"_id":"75"},{"_id":"63"},{"_id":"77"}],"type":"journal_article","issue":"6","publication":"Business & Information Systems Engineering","publisher":"Springer","_id":"13770","page":"467-481","volume":62,"ddc":["004"],"user_id":"477","status":"public","has_accepted_license":"1","citation":{"bibtex":"@article{Karl_Kundisch_Meyer auf der Heide_Wehrheim_2020, title={A Case for a New IT Ecosystem: On-The-Fly Computing}, volume={62}, DOI={<a href=\"https://doi.org/10.1007/s12599-019-00627-x\">10.1007/s12599-019-00627-x</a>}, number={6}, journal={Business &#38; Information Systems Engineering}, publisher={Springer}, author={Karl, Holger and Kundisch, Dennis and Meyer auf der Heide, Friedhelm and Wehrheim, Heike}, year={2020}, pages={467–481} }","ama":"Karl H, Kundisch D, Meyer auf der Heide F, Wehrheim H. A Case for a New IT Ecosystem: On-The-Fly Computing. <i>Business &#38; Information Systems Engineering</i>. 2020;62(6):467-481. doi:<a href=\"https://doi.org/10.1007/s12599-019-00627-x\">10.1007/s12599-019-00627-x</a>","mla":"Karl, Holger, et al. “A Case for a New IT Ecosystem: On-The-Fly Computing.” <i>Business &#38; Information Systems Engineering</i>, vol. 62, no. 6, Springer, 2020, pp. 467–81, doi:<a href=\"https://doi.org/10.1007/s12599-019-00627-x\">10.1007/s12599-019-00627-x</a>.","chicago":"Karl, Holger, Dennis Kundisch, Friedhelm Meyer auf der Heide, and Heike Wehrheim. “A Case for a New IT Ecosystem: On-The-Fly Computing.” <i>Business &#38; Information Systems Engineering</i> 62, no. 6 (2020): 467–81. <a href=\"https://doi.org/10.1007/s12599-019-00627-x\">https://doi.org/10.1007/s12599-019-00627-x</a>.","short":"H. Karl, D. Kundisch, F. Meyer auf der Heide, H. Wehrheim, Business &#38; Information Systems Engineering 62 (2020) 467–481.","ieee":"H. Karl, D. Kundisch, F. Meyer auf der Heide, and H. Wehrheim, “A Case for a New IT Ecosystem: On-The-Fly Computing,” <i>Business &#38; Information Systems Engineering</i>, vol. 62, no. 6, pp. 467–481, 2020, doi: <a href=\"https://doi.org/10.1007/s12599-019-00627-x\">10.1007/s12599-019-00627-x</a>.","apa":"Karl, H., Kundisch, D., Meyer auf der Heide, F., &#38; Wehrheim, H. (2020). A Case for a New IT Ecosystem: On-The-Fly Computing. <i>Business &#38; Information Systems Engineering</i>, <i>62</i>(6), 467–481. <a href=\"https://doi.org/10.1007/s12599-019-00627-x\">https://doi.org/10.1007/s12599-019-00627-x</a>"},"file_date_updated":"2019-12-12T10:24:47Z","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"3","name":"SFB 901 - Project Area B"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"82","name":"SFB 901 - Project Area T"},{"_id":"5","name":"SFB 901 - Subproject A1"},{"name":"SFB 901 - Subproject A2","_id":"6"},{"name":"SFB 901 - Subproject A3","_id":"7"},{"_id":"8","name":"SFB 901 - Subproject A4"},{"_id":"9","name":"SFB 901 - Subproject B1"},{"name":"SFB 901 - Subproject B2","_id":"10"},{"_id":"11","name":"SFB 901 - Subproject B3"},{"name":"SFB 901 - Subproject B4","_id":"12"},{"name":"SFB 901 - Subproject C1","_id":"13"},{"_id":"14","name":"SFB 901 - Subproject C2"},{"_id":"15","name":"SFB 901 - Subproject C3"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"name":"SFB 901 - Subproject C5","_id":"17"},{"_id":"83","name":"SFB 901 -Subproject T1"},{"name":"SFB 901 -Subproject T2","_id":"84"},{"name":"SFB 901 -Subproject T3","_id":"107"},{"name":"SFB 901 - T4: SFB 901 -Subproject T4","_id":"158"}]},{"_id":"61260","publisher":"IEEE","language":[{"iso":"eng"}],"doi":"10.1109/etfa46521.2020.9212006","user_id":"44169","status":"public","year":"2020","title":"A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts","author":[{"orcid":"0009-0007-2992-8346","last_name":"Illian","first_name":"Marvin","full_name":"Illian, Marvin","id":"44169"},{"last_name":"Althoff","first_name":"Simon","full_name":"Althoff, Simon"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"}],"date_updated":"2026-05-20T08:43:36Z","publication_status":"published","date_created":"2025-09-12T11:26:57Z","type":"conference","publication":"2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)","citation":{"mla":"Illian, Marvin, et al. “A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts.” <i>2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)</i>, IEEE, 2020, doi:<a href=\"https://doi.org/10.1109/etfa46521.2020.9212006\">10.1109/etfa46521.2020.9212006</a>.","ama":"Illian M, Althoff S, Karl H. A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts. In: <i>2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. IEEE; 2020. doi:<a href=\"https://doi.org/10.1109/etfa46521.2020.9212006\">10.1109/etfa46521.2020.9212006</a>","bibtex":"@inproceedings{Illian_Althoff_Karl_2020, title={A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts}, DOI={<a href=\"https://doi.org/10.1109/etfa46521.2020.9212006\">10.1109/etfa46521.2020.9212006</a>}, booktitle={2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)}, publisher={IEEE}, author={Illian, Marvin and Althoff, Simon and Karl, Holger}, year={2020} }","apa":"Illian, M., Althoff, S., &#38; Karl, H. (2020). A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts. <i>2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. <a href=\"https://doi.org/10.1109/etfa46521.2020.9212006\">https://doi.org/10.1109/etfa46521.2020.9212006</a>","ieee":"M. Illian, S. Althoff, and H. Karl, “A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts,” 2020, doi: <a href=\"https://doi.org/10.1109/etfa46521.2020.9212006\">10.1109/etfa46521.2020.9212006</a>.","short":"M. Illian, S. Althoff, H. Karl, in: 2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2020.","chicago":"Illian, Marvin, Simon Althoff, and Holger Karl. “A Process to Develop Lean Big-Data Platform Architectures for Industrial Manufacturing Contexts.” In <i>2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)</i>. IEEE, 2020. <a href=\"https://doi.org/10.1109/etfa46521.2020.9212006\">https://doi.org/10.1109/etfa46521.2020.9212006</a>."},"quality_controlled":"1"},{"author":[{"full_name":"Razzaghi Kouchaksaraei, Hadi","first_name":"Hadi","last_name":"Razzaghi Kouchaksaraei","id":"60845"},{"id":"66637","full_name":"Shivarpatna Venkatesh, Ashwin Prasad","last_name":"Shivarpatna Venkatesh","first_name":"Ashwin Prasad"},{"full_name":"Churi, Amey","last_name":"Churi","first_name":"Amey"},{"id":"44169","last_name":"Illian","first_name":"Marvin","orcid":"0009-0007-2992-8346","full_name":"Illian, Marvin"},{"last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger","id":"126"}],"conference":{"end_date":"2020-06-18","start_date":"2020-06-15","name":"European Conference on Networks and Communications (EUCNC 2020)"},"title":"Dynamic Provisioning of Network Services on Heterogeneous Resources","year":"2020","status":"public","publication_status":"accepted","date_updated":"2026-05-20T08:45:06Z","language":[{"iso":"eng"}],"_id":"16726","user_id":"44169","citation":{"chicago":"Razzaghi Kouchaksaraei, Hadi, Ashwin Prasad Shivarpatna Venkatesh, Amey Churi, Marvin Illian, and Holger Karl. “Dynamic Provisioning of Network Services on Heterogeneous Resources.” In <i>European Conference on Networks and Communications (EUCNC 2020)</i>, n.d.","short":"H. Razzaghi Kouchaksaraei, A.P. Shivarpatna Venkatesh, A. Churi, M. Illian, H. Karl, in: European Conference on Networks and Communications (EUCNC 2020), n.d.","ieee":"H. Razzaghi Kouchaksaraei, A. P. Shivarpatna Venkatesh, A. Churi, M. Illian, and H. Karl, “Dynamic Provisioning of Network Services on Heterogeneous Resources,” presented at the European Conference on Networks and Communications (EUCNC 2020).","apa":"Razzaghi Kouchaksaraei, H., Shivarpatna Venkatesh, A. P., Churi, A., Illian, M., &#38; Karl, H. (n.d.). Dynamic Provisioning of Network Services on Heterogeneous Resources. <i>European Conference on Networks and Communications (EUCNC 2020)</i>. European Conference on Networks and Communications (EUCNC 2020).","bibtex":"@inproceedings{Razzaghi Kouchaksaraei_Shivarpatna Venkatesh_Churi_Illian_Karl, title={Dynamic Provisioning of Network Services on Heterogeneous Resources}, booktitle={European Conference on Networks and Communications (EUCNC 2020)}, author={Razzaghi Kouchaksaraei, Hadi and Shivarpatna Venkatesh, Ashwin Prasad and Churi, Amey and Illian, Marvin and Karl, Holger} }","ama":"Razzaghi Kouchaksaraei H, Shivarpatna Venkatesh AP, Churi A, Illian M, Karl H. Dynamic Provisioning of Network Services on Heterogeneous Resources. In: <i>European Conference on Networks and Communications (EUCNC 2020)</i>.","mla":"Razzaghi Kouchaksaraei, Hadi, et al. “Dynamic Provisioning of Network Services on Heterogeneous Resources.” <i>European Conference on Networks and Communications (EUCNC 2020)</i>."},"publication":"European Conference on Networks and Communications (EUCNC 2020)","project":[{"_id":"23","name":"5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"},{"name":"SFB 901","_id":"1"}],"quality_controlled":"1","date_created":"2020-04-20T09:36:53Z","department":[{"_id":"34"}],"type":"conference"},{"status":"public","conference":{"location":"Washington, DC, USA","name":"2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)","start_date":"2019-04-08","end_date":"2019-04-12"},"has_accepted_license":"1","page":"116--124","publisher":"IFIP","_id":"3287","user_id":"35343","ddc":["040"],"file_date_updated":"2019-01-07T12:38:35Z","citation":{"ama":"Schneider SB, Sharma A, Karl H, Wehrheim H. Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets. In: <i>2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>. Washington, DC, USA: IFIP; 2019:116--124.","bibtex":"@inproceedings{Schneider_Sharma_Karl_Wehrheim_2019, place={Washington, DC, USA}, title={Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets}, booktitle={2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)}, publisher={IFIP}, author={Schneider, Stefan Balthasar and Sharma, Arnab and Karl, Holger and Wehrheim, Heike}, year={2019}, pages={116--124} }","mla":"Schneider, Stefan Balthasar, et al. “Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets.” <i>2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>, IFIP, 2019, pp. 116--124.","short":"S.B. Schneider, A. Sharma, H. Karl, H. Wehrheim, in: 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM), IFIP, Washington, DC, USA, 2019, pp. 116--124.","chicago":"Schneider, Stefan Balthasar, Arnab Sharma, Holger Karl, and Heike Wehrheim. “Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets.” In <i>2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>, 116--124. Washington, DC, USA: IFIP, 2019.","apa":"Schneider, S. B., Sharma, A., Karl, H., &#38; Wehrheim, H. (2019). Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets. In <i>2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)</i> (pp. 116--124). Washington, DC, USA: IFIP.","ieee":"S. B. Schneider, A. Sharma, H. Karl, and H. Wehrheim, “Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets,” in <i>2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)</i>, Washington, DC, USA, 2019, pp. 116--124."},"project":[{"_id":"3","name":"SFB 901 - Project Area B"},{"_id":"11","name":"SFB 901 - Subproject B3"},{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493","_id":"28"},{"name":"SONATA NFV: Agile Service Development and Orchestration in 5G Virtualized Networks","grant_number":"671517","_id":"25","call_identifier":"5G PPP Phase 1"}],"place":"Washington, DC, USA","oa":"1","year":"2019","title":"Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets","author":[{"id":"35343","orcid":"0000-0001-8210-4011","last_name":"Schneider","first_name":"Stefan Balthasar","full_name":"Schneider, Stefan Balthasar"},{"full_name":"Sharma, Arnab","first_name":"Arnab","last_name":"Sharma","id":"67200"},{"last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger","id":"126"},{"full_name":"Wehrheim, Heike","first_name":"Heike","last_name":"Wehrheim","id":"573"}],"date_updated":"2022-01-06T06:59:09Z","main_file_link":[{"url":"http://dl.ifip.org/db/conf/im/im2019/188490.pdf","open_access":"1"}],"language":[{"iso":"eng"}],"publication":"2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)","abstract":[{"lang":"eng","text":"For optimal placement and orchestration of network services, it is crucial\r\nthat their structure and semantics are specified clearly and comprehensively\r\nand are available to an orchestrator. Existing specification approaches are\r\neither ambiguous or miss important aspects regarding the behavior of virtual\r\nnetwork functions (VNFs) forming a service. We propose to formally and\r\nunambiguously specify the behavior of these functions and services using\r\nQueuing Petri Nets (QPNs). QPNs are an established method that allows to\r\nexpress queuing, synchronization, stochastically distributed processing delays,\r\nand changing traffic volume and characteristics at each VNF. With QPNs,\r\nmultiple VNFs can be connected to complete network services in any structure,\r\neven specifying bidirectional network services containing loops.\r\n  We discuss how management and orchestration systems can benefit from our\r\nclear and comprehensive specification approach, leading to better placement of\r\nVNFs and improved Quality of Service. Another benefit of formally specifying\r\nnetwork services with QPNs are diverse analysis options, which allow valuable\r\ninsights such as the distribution of end-to-end delay. We propose a tool-based\r\nworkflow that supports the specification of network services and the automatic\r\ngeneration of corresponding simulation code to enable an in-depth analysis of\r\ntheir behavior and performance."}],"file":[{"creator":"stschn","date_created":"2019-01-07T12:38:35Z","date_updated":"2019-01-07T12:38:35Z","relation":"main_file","access_level":"open_access","file_size":497528,"file_name":"ris_preprint.pdf","content_type":"application/pdf","file_id":"6504"}],"date_created":"2018-06-18T15:23:18Z","type":"conference","department":[{"_id":"77"},{"_id":"75"}]},{"oa":"1","place":"Valencia, Spain","project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"},{"name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493","_id":"28"}],"file_date_updated":"2019-12-12T09:15:57Z","citation":{"apa":"Schneider, S. B., Peuster, M., Behnke, D., Marcel, M., Bök, P.-B., &#38; Karl, H. (2019). Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario. In <i>European Conference on Networks and Communications (EuCNC)</i>. Valencia, Spain: IEEE. <a href=\"https://doi.org/10.1109/eucnc.2019.8802016\">https://doi.org/10.1109/eucnc.2019.8802016</a>","ieee":"S. B. Schneider, M. Peuster, D. Behnke, M. Marcel, P.-B. Bök, and H. Karl, “Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario,” in <i>European Conference on Networks and Communications (EuCNC)</i>, 2019.","short":"S.B. Schneider, M. Peuster, D. Behnke, M. Marcel, P.-B. Bök, H. Karl, in: European Conference on Networks and Communications (EuCNC), IEEE, Valencia, Spain, 2019.","chicago":"Schneider, Stefan Balthasar, Manuel Peuster, Daniel Behnke, Müller Marcel, Patrick-Benjamin Bök, and Holger Karl. “Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario.” In <i>European Conference on Networks and Communications (EuCNC)</i>. Valencia, Spain: IEEE, 2019. <a href=\"https://doi.org/10.1109/eucnc.2019.8802016\">https://doi.org/10.1109/eucnc.2019.8802016</a>.","mla":"Schneider, Stefan Balthasar, et al. “Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario.” <i>European Conference on Networks and Communications (EuCNC)</i>, IEEE, 2019, doi:<a href=\"https://doi.org/10.1109/eucnc.2019.8802016\">10.1109/eucnc.2019.8802016</a>.","ama":"Schneider SB, Peuster M, Behnke D, Marcel M, Bök P-B, Karl H. Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario. In: <i>European Conference on Networks and Communications (EuCNC)</i>. Valencia, Spain: IEEE; 2019. doi:<a href=\"https://doi.org/10.1109/eucnc.2019.8802016\">10.1109/eucnc.2019.8802016</a>","bibtex":"@inproceedings{Schneider_Peuster_Behnke_Marcel_Bök_Karl_2019, place={Valencia, Spain}, title={Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario}, DOI={<a href=\"https://doi.org/10.1109/eucnc.2019.8802016\">10.1109/eucnc.2019.8802016</a>}, booktitle={European Conference on Networks and Communications (EuCNC)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Peuster, Manuel and Behnke, Daniel and Marcel, Müller and Bök, Patrick-Benjamin and Karl, Holger}, year={2019} }"},"user_id":"35343","ddc":["000"],"_id":"9270","publisher":"IEEE","has_accepted_license":"1","status":"public","type":"conference","keyword":["5g","vertical","smart manufacturing","nfv"],"department":[{"_id":"75"}],"file":[{"creator":"stschn","date_created":"2019-04-23T09:29:49Z","date_updated":"2019-12-12T09:15:57Z","relation":"main_file","file_size":374397,"access_level":"open_access","file_name":"preprint_ris_with_header.pdf","content_type":"application/pdf","file_id":"9272"}],"date_created":"2019-04-23T09:27:06Z","abstract":[{"text":"As 5G and network function virtualization (NFV) are maturing, it becomes crucial to demonstrate their feasibility and benefits by means of vertical scenarios. While 5GPPP has identified smart manufacturing as one of the most important vertical industries, there is still a lack of specific, practical use cases. \r\n\r\nUsing the experience from a large-scale manufacturing company, Weidm{\\\"u}ller Group, we present a detailed use case that reflects the needs of real-world manufacturers. We also propose an architecture with specific network services and virtual network functions (VNFs) that realize the use case in practice. As a proof of concept, we implement the required services and deploy them on an emulation-based prototyping platform. Our experimental results indicate that a fully virtualized smart manufacturing use case is not only feasible but also reduces machine interconnection and configuration time and thus improves productivity by orders of magnitude.","lang":"eng"}],"publication":"European Conference on Networks and Communications (EuCNC)","doi":"10.1109/eucnc.2019.8802016","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/8802016"}],"language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:04:12Z","year":"2019","title":"Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario","author":[{"id":"35343","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","last_name":"Schneider","full_name":"Schneider, Stefan Balthasar"},{"full_name":"Peuster, Manuel","last_name":"Peuster","first_name":"Manuel","id":"13271"},{"last_name":"Behnke","first_name":"Daniel","full_name":"Behnke, Daniel"},{"first_name":"Müller","last_name":"Marcel","full_name":"Marcel, Müller"},{"first_name":"Patrick-Benjamin","last_name":"Bök","full_name":"Bök, Patrick-Benjamin"},{"full_name":"Karl, Holger","first_name":"Holger","last_name":"Karl","id":"126"}]},{"status":"public","has_accepted_license":"1","publisher":"Elsevier BV","_id":"8113","ddc":["000"],"user_id":"477","citation":{"ama":"Peuster M, Dröge C, Boos C, Karl H. Joint testing and profiling of microservice-based network services using TTCN-3. <i>ICT Express</i>. 2019. doi:<a href=\"https://doi.org/10.1016/j.icte.2019.02.001\">10.1016/j.icte.2019.02.001</a>","bibtex":"@article{Peuster_Dröge_Boos_Karl_2019, title={Joint testing and profiling of microservice-based network services using TTCN-3}, DOI={<a href=\"https://doi.org/10.1016/j.icte.2019.02.001\">10.1016/j.icte.2019.02.001</a>}, journal={ICT Express}, publisher={Elsevier BV}, author={Peuster, Manuel and Dröge, Christian and Boos, Clemens and Karl, Holger}, year={2019} }","mla":"Peuster, Manuel, et al. “Joint Testing and Profiling of Microservice-Based Network Services Using TTCN-3.” <i>ICT Express</i>, Elsevier BV, 2019, doi:<a href=\"https://doi.org/10.1016/j.icte.2019.02.001\">10.1016/j.icte.2019.02.001</a>.","chicago":"Peuster, Manuel, Christian Dröge, Clemens Boos, and Holger Karl. “Joint Testing and Profiling of Microservice-Based Network Services Using TTCN-3.” <i>ICT Express</i>, 2019. <a href=\"https://doi.org/10.1016/j.icte.2019.02.001\">https://doi.org/10.1016/j.icte.2019.02.001</a>.","short":"M. Peuster, C. Dröge, C. Boos, H. Karl, ICT Express (2019).","apa":"Peuster, M., Dröge, C., Boos, C., &#38; Karl, H. (2019). Joint testing and profiling of microservice-based network services using TTCN-3. <i>ICT Express</i>. <a href=\"https://doi.org/10.1016/j.icte.2019.02.001\">https://doi.org/10.1016/j.icte.2019.02.001</a>","ieee":"M. Peuster, C. Dröge, C. Boos, and H. Karl, “Joint testing and profiling of microservice-based network services using TTCN-3,” <i>ICT Express</i>, 2019."},"file_date_updated":"2019-02-26T18:09:43Z","project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"grant_number":"761493","_id":"28","name":"5G Development and validation platform for global industry-specific network services and Apps"}],"oa":"1","author":[{"id":"13271","first_name":"Manuel","last_name":"Peuster","full_name":"Peuster, Manuel"},{"first_name":"Christian","last_name":"Dröge","full_name":"Dröge, Christian"},{"full_name":"Boos, Clemens","first_name":"Clemens","last_name":"Boos"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"}],"publication_identifier":{"issn":["2405-9595"]},"title":"Joint testing and profiling of microservice-based network services using TTCN-3","year":"2019","date_updated":"2022-01-06T07:03:51Z","publication_status":"published","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2405959519300402","open_access":"1"}],"doi":"10.1016/j.icte.2019.02.001","publication":"ICT Express","abstract":[{"text":"The ongoing softwarization of networks creates a big need for automated testing solutions to ensure service quality. This becomes even more important if agile environments with short time to market and high demands, in terms of service performance and availability, are considered.\r\nIn this paper, we introduce a novel testing solution for virtualized, microservice-based network functions and services, which we base on TTCN-3, a well known testing language defined by the European standards institute (ETSI). We use TTCN-3 not only for functional testing but also answer the question whether TTCN-3 can be used for  performance profiling tasks as well. Finally, we demonstrate the proposed concepts and solutions in a case study using our open-source prototype to test and profile a chained network service.","lang":"eng"}],"date_created":"2019-02-26T18:07:33Z","file":[{"file_id":"8114","content_type":"application/pdf","relation":"main_file","date_updated":"2019-02-26T18:09:43Z","file_name":"main_for_ris.pdf","access_level":"open_access","file_size":232599,"date_created":"2019-02-26T18:09:43Z","creator":"peuster"}],"department":[{"_id":"75"}],"type":"journal_article"},{"project":[{"grant_number":"762057","_id":"23","name":"5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources"},{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"publication":"5th IEEE International Conference on Network Softwarization (NetSoft) 2019","citation":{"ama":"Dräxler S, Karl H. SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures. In: <i>5th IEEE International Conference on Network Softwarization (NetSoft) 2019</i>.","bibtex":"@inproceedings{Dräxler_Karl, title={SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures}, booktitle={5th IEEE International Conference on Network Softwarization (NetSoft) 2019}, author={Dräxler, Sevil and Karl, Holger} }","mla":"Dräxler, Sevil, and Holger Karl. “SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures.” <i>5th IEEE International Conference on Network Softwarization (NetSoft) 2019</i>.","short":"S. Dräxler, H. Karl, in: 5th IEEE International Conference on Network Softwarization (NetSoft) 2019, n.d.","chicago":"Dräxler, Sevil, and Holger Karl. “SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures.” In <i>5th IEEE International Conference on Network Softwarization (NetSoft) 2019</i>, n.d.","apa":"Dräxler, S., &#38; Karl, H. (n.d.). SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures. In <i>5th IEEE International Conference on Network Softwarization (NetSoft) 2019</i>. Paris.","ieee":"S. Dräxler and H. Karl, “SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures,” in <i>5th IEEE International Conference on Network Softwarization (NetSoft) 2019</i>, Paris."},"type":"conference","department":[{"_id":"75"}],"date_created":"2019-03-04T09:23:54Z","date_updated":"2022-01-06T07:03:52Z","publication_status":"accepted","title":"SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures","status":"public","year":"2019","conference":{"location":"Paris","start_date":"2019-06-24","name":"5th IEEE International Conference on Network Softwarization (NetSoft) 2019","end_date":"2019-06-28"},"author":[{"id":"31764","full_name":"Dräxler, Sevil","first_name":"Sevil","last_name":"Dräxler"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"}],"user_id":"31764","language":[{"iso":"eng"}],"_id":"8240"},{"file_date_updated":"2019-04-01T13:46:18Z","citation":{"short":"M. Peuster, S.B. Schneider, D. Behnke, M. Müller, P.-B. Bök, H. Karl, in: 5th IEEE International Conference on Network Softwarization (NetSoft 2019), Paris, 2019.","chicago":"Peuster, Manuel, Stefan Balthasar Schneider, Daniel Behnke, Marcel Müller, Patrick-Benjamin Bök, and Holger Karl. “Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case.” In <i>5th IEEE International Conference on Network Softwarization (NetSoft 2019)</i>. Paris, 2019. <a href=\"https://doi.org/10.1109/NETSOFT.2019.8806685\">https://doi.org/10.1109/NETSOFT.2019.8806685</a>.","apa":"Peuster, M., Schneider, S. B., Behnke, D., Müller, M., Bök, P.-B., &#38; Karl, H. (2019). Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case. In <i>5th IEEE International Conference on Network Softwarization (NetSoft 2019)</i>. Paris. <a href=\"https://doi.org/10.1109/NETSOFT.2019.8806685\">https://doi.org/10.1109/NETSOFT.2019.8806685</a>","ieee":"M. Peuster, S. B. Schneider, D. Behnke, M. Müller, P.-B. Bök, and H. Karl, “Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case,” in <i>5th IEEE International Conference on Network Softwarization (NetSoft 2019)</i>, Paris, 2019.","ama":"Peuster M, Schneider SB, Behnke D, Müller M, Bök P-B, Karl H. Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case. In: <i>5th IEEE International Conference on Network Softwarization (NetSoft 2019)</i>. Paris; 2019. doi:<a href=\"https://doi.org/10.1109/NETSOFT.2019.8806685\">10.1109/NETSOFT.2019.8806685</a>","bibtex":"@inproceedings{Peuster_Schneider_Behnke_Müller_Bök_Karl_2019, place={Paris}, title={Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case}, DOI={<a href=\"https://doi.org/10.1109/NETSOFT.2019.8806685\">10.1109/NETSOFT.2019.8806685</a>}, booktitle={5th IEEE International Conference on Network Softwarization (NetSoft 2019)}, author={Peuster, Manuel and Schneider, Stefan Balthasar and Behnke, Daniel and Müller, Marcel and Bök, Patrick-Benjamin and Karl, Holger}, year={2019} }","mla":"Peuster, Manuel, et al. “Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case.” <i>5th IEEE International Conference on Network Softwarization (NetSoft 2019)</i>, 2019, doi:<a href=\"https://doi.org/10.1109/NETSOFT.2019.8806685\">10.1109/NETSOFT.2019.8806685</a>."},"project":[{"name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493","_id":"28"},{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"place":"Paris","oa":"1","status":"public","conference":{"end_date":"2019-06-28","location":"Paris","name":"5th IEEE International Conference on Network Softwarization (NetSoft 2019)","start_date":"2019-06-24"},"has_accepted_license":"1","_id":"8792","user_id":"13271","ddc":["000"],"publication":"5th IEEE International Conference on Network Softwarization (NetSoft 2019)","abstract":[{"lang":"eng","text":"5G together with software defined networking (SDN) and network function virtualisation (NFV) will enable a wide variety of vertical use cases. One of them is the smart man- ufacturing case which utilises 5G networks to interconnect production machines, machine parks, and factory sites to enable new possibilities in terms of flexibility, automation, and novel applications (industry 4.0). However, the availability of realistic and practical proof-of-concepts for those smart manufacturing scenarios is still limited.\r\nThis demo fills this gap by not only showing a real-world smart manufacturing application entirely implemented using NFV concepts, but also a lightweight prototyping framework that simplifies the realisation of vertical NFV proof-of-concepts. Dur- ing the demo, we show how an NFV-based smart manufacturing scenario can be specified, on-boarded, and instantiated before we demonstrate how the presented NFV services simplify machine data collection, aggregation, and analysis."}],"file":[{"date_created":"2019-04-01T13:46:18Z","creator":"peuster","file_id":"8794","content_type":"application/pdf","relation":"main_file","date_updated":"2019-04-01T13:46:18Z","file_name":"main_for_ris.pdf","file_size":1693793,"access_level":"open_access"}],"date_created":"2019-04-01T13:37:05Z","type":"conference","department":[{"_id":"75"}],"title":"Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case","year":"2019","author":[{"id":"13271","full_name":"Peuster, Manuel","last_name":"Peuster","first_name":"Manuel"},{"id":"35343","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","last_name":"Schneider"},{"first_name":"Daniel","last_name":"Behnke","full_name":"Behnke, Daniel"},{"full_name":"Müller, Marcel","last_name":"Müller","first_name":"Marcel"},{"full_name":"Bök, Patrick-Benjamin","first_name":"Patrick-Benjamin","last_name":"Bök"},{"id":"126","first_name":"Holger","last_name":"Karl","full_name":"Karl, Holger"}],"date_updated":"2022-01-06T07:04:01Z","main_file_link":[{"url":"https://doi.org/10.1109/NETSOFT.2019.8806685"}],"language":[{"iso":"eng"}],"doi":"10.1109/NETSOFT.2019.8806685"},{"abstract":[{"text":"Softwarized networks are the key enabler for elastic, on-demand service deployments of virtualized network functions. They allow to dynamically steer traffic\r\nthrough the network when new network functions are instantiated, or old ones\r\nare terminated. These scenarios become in particular challenging when stateful functions are involved, necessitating state management solutions to migrate\r\nstate between the functions. The problem with existing solutions is that they typically embrace state migration and flow rerouting jointly, imposing a huge set\r\nof requirements on the on-boarded virtualized network functions (VNFs), eg,\r\nsolution-specific state management interfaces.\r\nTo change this, we introduce the seamless handover protocol (SHarP). An\r\neasy-to-use, loss-less, and order-preserving flow rerouting mechanism that is\r\nnot fixed to a single state management approach. Using SHarP, VNF vendors\r\nare empowered to implement or use the state management solution of their\r\nchoice. SHarP supports these solutions with additional information when flows\r\nare migrated. In this paper, we present SHarP's design, its open source prototype\r\nimplementation, and show how SHarP significantly reduces the buffer usage at\r\na central (SDN) controller, which is a typical bottleneck in state-of-the-art solutions. Our experiments show that SHarP uses a constant amount of controller\r\nbuffer, irrespective of the time taken to migrate the VNF state.","lang":"eng"}],"publication":"International Journal of Network Management","type":"journal_article","department":[{"_id":"75"}],"file":[{"date_created":"2019-04-01T18:04:14Z","creator":"peuster","file_id":"8796","content_type":"application/pdf","file_name":"main_for_ris.pdf","access_level":"open_access","file_size":2571927,"relation":"main_file","date_updated":"2019-04-01T18:04:14Z"}],"date_created":"2019-04-01T17:47:36Z","date_updated":"2022-01-06T07:04:01Z","publication_status":"published","title":"A flow handover protocol to support state migration in softwarized networks","year":"2019","author":[{"full_name":"Peuster, Manuel","first_name":"Manuel","last_name":"Peuster","id":"13271"},{"full_name":"Küttner, Hannes","first_name":"Hannes","last_name":"Küttner"},{"full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger","id":"126"}],"publication_identifier":{"issn":["1055-7148","1099-1190"]},"doi":"10.1002/nem.2067","main_file_link":[{"url":"https://onlinelibrary.wiley.com/doi/abs/10.1002/nem.2067"}],"article_number":"e2067","language":[{"iso":"eng"}],"project":[{"name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28","grant_number":"761493"},{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"file_date_updated":"2019-04-01T18:04:14Z","citation":{"ieee":"M. Peuster, H. Küttner, and H. Karl, “A flow handover protocol to support state migration in softwarized networks,” <i>International Journal of Network Management</i>, 2019.","apa":"Peuster, M., Küttner, H., &#38; Karl, H. (2019). A flow handover protocol to support state migration in softwarized networks. <i>International Journal of Network Management</i>. <a href=\"https://doi.org/10.1002/nem.2067\">https://doi.org/10.1002/nem.2067</a>","mla":"Peuster, Manuel, et al. “A Flow Handover Protocol to Support State Migration in Softwarized Networks.” <i>International Journal of Network Management</i>, e2067, 2019, doi:<a href=\"https://doi.org/10.1002/nem.2067\">10.1002/nem.2067</a>.","bibtex":"@article{Peuster_Küttner_Karl_2019, title={A flow handover protocol to support state migration in softwarized networks}, DOI={<a href=\"https://doi.org/10.1002/nem.2067\">10.1002/nem.2067</a>}, number={e2067}, journal={International Journal of Network Management}, author={Peuster, Manuel and Küttner, Hannes and Karl, Holger}, year={2019} }","chicago":"Peuster, Manuel, Hannes Küttner, and Holger Karl. “A Flow Handover Protocol to Support State Migration in Softwarized Networks.” <i>International Journal of Network Management</i>, 2019. <a href=\"https://doi.org/10.1002/nem.2067\">https://doi.org/10.1002/nem.2067</a>.","short":"M. Peuster, H. Küttner, H. Karl, International Journal of Network Management (2019).","ama":"Peuster M, Küttner H, Karl H. A flow handover protocol to support state migration in softwarized networks. <i>International Journal of Network Management</i>. 2019. doi:<a href=\"https://doi.org/10.1002/nem.2067\">10.1002/nem.2067</a>"},"oa":"1","has_accepted_license":"1","status":"public","ddc":["000"],"user_id":"13271","_id":"8795"},{"date_created":"2019-05-14T05:43:57Z","file":[{"creator":"ups","date_created":"2019-08-26T09:09:50Z","file_size":1206037,"access_level":"closed","file_name":"p240-Kouchaksaraei.pdf","date_updated":"2019-08-26T09:09:50Z","relation":"main_file","content_type":"application/pdf","file_id":"12953"}],"department":[{"_id":"34"}],"type":"conference","keyword":["Network Function Virtualization","Software-defined Networking","Cloud Computing","service orchestration","OpenStack","Kubernetes"],"publication":"13th ACM International Conference on Distributed and Event-based Systems","abstract":[{"lang":"eng","text":"Remarkable advantages of Containers (CNs) over Virtual Machines (VMs) such as lower overhead and faster startup has gained the attention of Communication Service Providers (CSPs) as using CNs for providing Virtual Network Functions (VNFs) can save costs while increasing the service agility. However, as it is not feasible to realise all types of VNFs in CNs, the coexistence of VMs and CNs is proposed. To put VMs and CNs together, an orchestration framework that can chain services across distributed and heterogeneous domains is required. To this end, we implemented a framework by extending and consolidating state-of-the-art tools and technologies originated from Network Function Virtualization (NFV), Software-defined Networking (SDN) and cloud computing environments. This framework chains services provisioned across Kubernetes and OpenStack domains. During the demo, we deploy a service consist of CN- and VM-based VNFs to demonstrate different features provided by our framework."}],"language":[{"iso":"eng"}],"doi":"10.1145/3328905.3332505","author":[{"id":"60845","last_name":"Razzaghi Kouchaksaraei","first_name":"Hadi","full_name":"Razzaghi Kouchaksaraei, Hadi"},{"id":"126","last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger"}],"title":"Service Function Chaining Across OpenStack and Kubernetes Domains","year":"2019","date_updated":"2022-01-06T07:04:21Z","publication_status":"published","place":"Darmstadt","citation":{"ieee":"H. Razzaghi Kouchaksaraei and H. Karl, “Service Function Chaining Across OpenStack and Kubernetes Domains,” in <i>13th ACM International Conference on Distributed and Event-based Systems</i>, Darmstadt, 2019.","apa":"Razzaghi Kouchaksaraei, H., &#38; Karl, H. (2019). Service Function Chaining Across OpenStack and Kubernetes Domains. In <i>13th ACM International Conference on Distributed and Event-based Systems</i>. Darmstadt. <a href=\"https://doi.org/10.1145/3328905.3332505\">https://doi.org/10.1145/3328905.3332505</a>","short":"H. Razzaghi Kouchaksaraei, H. Karl, in: 13th ACM International Conference on Distributed and Event-Based Systems, Darmstadt, 2019.","chicago":"Razzaghi Kouchaksaraei, Hadi, and Holger Karl. “Service Function Chaining Across OpenStack and Kubernetes Domains.” In <i>13th ACM International Conference on Distributed and Event-Based Systems</i>. Darmstadt, 2019. <a href=\"https://doi.org/10.1145/3328905.3332505\">https://doi.org/10.1145/3328905.3332505</a>.","mla":"Razzaghi Kouchaksaraei, Hadi, and Holger Karl. “Service Function Chaining Across OpenStack and Kubernetes Domains.” <i>13th ACM International Conference on Distributed and Event-Based Systems</i>, 2019, doi:<a href=\"https://doi.org/10.1145/3328905.3332505\">10.1145/3328905.3332505</a>.","bibtex":"@inproceedings{Razzaghi Kouchaksaraei_Karl_2019, place={Darmstadt}, title={Service Function Chaining Across OpenStack and Kubernetes Domains}, DOI={<a href=\"https://doi.org/10.1145/3328905.3332505\">10.1145/3328905.3332505</a>}, booktitle={13th ACM International Conference on Distributed and Event-based Systems}, author={Razzaghi Kouchaksaraei, Hadi and Karl, Holger}, year={2019} }","ama":"Razzaghi Kouchaksaraei H, Karl H. Service Function Chaining Across OpenStack and Kubernetes Domains. In: <i>13th ACM International Conference on Distributed and Event-Based Systems</i>. Darmstadt; 2019. doi:<a href=\"https://doi.org/10.1145/3328905.3332505\">10.1145/3328905.3332505</a>"},"file_date_updated":"2019-08-26T09:09:50Z","project":[{"name":"5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources","grant_number":"762057","_id":"23"},{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"_id":"9809","ddc":["004"],"user_id":"477","conference":{"end_date":"2019-06-28","start_date":"2019-06-24","name":"13th ACM International Conference on Distributed and Event-based Systems","location":"Darmstadt"},"status":"public","has_accepted_license":"1"},{"publication":"IEEE Communications Magazine","file":[{"file_name":"main_for_ris.pdf","access_level":"open_access","date_created":"2019-05-16T09:13:40Z","file_size":1735036,"relation":"main_file","date_updated":"2019-05-16T09:13:40Z","file_id":"9825","content_type":"application/pdf","title":"Introducing Automated Verification and Validation for Virtualized Network Functions and Services","creator":"peuster","description":"Preprint of original article: M. 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Introducing Automated Verification and Validation for Virtualized Network Functions and Services. <i>IEEE Communications Magazine</i>. 2019:96-102. doi:<a href=\"https://doi.org/10.1109/mcom.2019.1800873\">10.1109/mcom.2019.1800873</a>","bibtex":"@article{Peuster_Schneider_Zhao_Xilouris_Trakadas_Vicens_Tavernier_Soenen_Vilalta_Andreou_et al._2019, title={Introducing Automated Verification and Validation for Virtualized Network Functions and Services}, DOI={<a href=\"https://doi.org/10.1109/mcom.2019.1800873\">10.1109/mcom.2019.1800873</a>}, journal={IEEE Communications Magazine}, author={Peuster, Manuel and Schneider, Stefan Balthasar and Zhao, Mengxuan and Xilouris, George and Trakadas, Panagiotis and Vicens, Felipe and Tavernier, Wouter and Soenen, Thomas and Vilalta, Ricard and Andreou, George and et al.}, year={2019}, pages={96–102} }","apa":"Peuster, M., Schneider, S. B., Zhao, M., Xilouris, G., Trakadas, P., Vicens, F., … Karl, H. (2019). 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