[{"title":"Every Node for Itself: Fully Distributed Service Coordination","department":[{"_id":"75"}],"project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"date_updated":"2022-01-06T06:54:08Z","oa":"1","language":[{"iso":"eng"}],"abstract":[{"text":"Modern services consist of modular, interconnected\r\ncomponents, e.g., microservices forming a service mesh. To\r\ndynamically adjust to ever-changing service demands, service\r\ncomponents have to be instantiated on nodes across the network.\r\nIncoming flows requesting a service then need to be routed\r\nthrough the deployed instances while considering node and link\r\ncapacities. Ultimately, the goal is to maximize the successfully\r\nserved flows and Quality of Service (QoS) through online service\r\ncoordination. Current approaches for service coordination are\r\nusually centralized, assuming up-to-date global knowledge and\r\nmaking global decisions for all nodes in the network. Such global\r\nknowledge and centralized decisions are not realistic in practical\r\nlarge-scale networks.\r\n\r\nTo solve this problem, we propose two algorithms for fully\r\ndistributed service coordination. The proposed algorithms can be\r\nexecuted individually at each node in parallel and require only\r\nvery limited global knowledge. We compare and evaluate both\r\nalgorithms with a state-of-the-art centralized approach in extensive\r\nsimulations on a large-scale, real-world network topology.\r\nOur results indicate that the two algorithms can compete with\r\ncentralized approaches in terms of solution quality but require\r\nless global knowledge and are magnitudes faster (more than\r\n100x).","lang":"eng"}],"user_id":"35343","ddc":["006"],"file":[{"access_level":"open_access","date_created":"2020-09-22T06:25:57Z","file_name":"ris_with_copyright.pdf","content_type":"application/pdf","date_updated":"2020-09-22T06:36:25Z","relation":"main_file","file_size":500948,"creator":"stschn","file_id":"19608"}],"publisher":"IEEE","author":[{"last_name":"Schneider","id":"35343","first_name":"Stefan Balthasar","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011"},{"last_name":"Klenner","full_name":"Klenner, Lars Dietrich","first_name":"Lars Dietrich"},{"full_name":"Karl, Holger","first_name":"Holger","id":"126","last_name":"Karl"}],"file_date_updated":"2020-09-22T06:36:25Z","keyword":["distributed management","service coordination","network coordination","nfv","softwarization","orchestration"],"publication":"IEEE International Conference on Network and Service Management (CNSM)","has_accepted_license":"1","status":"public","date_created":"2020-09-22T06:23:40Z","_id":"19607","type":"conference","citation":{"chicago":"Schneider, Stefan Balthasar, Lars Dietrich Klenner, and Holger Karl. “Every Node for Itself: Fully Distributed Service Coordination.” In IEEE International Conference on Network and Service Management (CNSM). IEEE, 2020.","ama":"Schneider SB, Klenner LD, Karl H. Every Node for Itself: Fully Distributed Service Coordination. In: IEEE International Conference on Network and Service Management (CNSM). IEEE; 2020.","apa":"Schneider, S. B., Klenner, L. D., & Karl, H. (2020). Every Node for Itself: Fully Distributed Service Coordination. In IEEE International Conference on Network and Service Management (CNSM). IEEE.","mla":"Schneider, Stefan Balthasar, et al. “Every Node for Itself: Fully Distributed Service Coordination.” IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","bibtex":"@inproceedings{Schneider_Klenner_Karl_2020, title={Every Node for Itself: Fully Distributed Service Coordination}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Klenner, Lars Dietrich and Karl, Holger}, year={2020} }","short":"S.B. Schneider, L.D. Klenner, H. Karl, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","ieee":"S. B. Schneider, L. D. Klenner, and H. Karl, “Every Node for Itself: Fully Distributed Service Coordination,” in IEEE International Conference on Network and Service Management (CNSM), 2020."},"year":"2020"},{"date_updated":"2022-01-06T06:54:08Z","oa":"1","language":[{"iso":"eng"}],"title":"Self-Driving Network and Service Coordination Using Deep Reinforcement Learning","department":[{"_id":"75"}],"project":[{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"_id":"19609","citation":{"mla":"Schneider, Stefan Balthasar, et al. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” IEEE International Conference on Network and Service Management (CNSM), 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} }","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 IEEE International Conference on Network and Service Management (CNSM). IEEE, 2020.","apa":"Schneider, S. B., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., Khalili, R., & Hecker, A. (2020). Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In IEEE International Conference on Network and Service Management (CNSM). IEEE.","ama":"Schneider SB, Manzoor A, Qarawlus H, et al. Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In: IEEE International Conference on Network and Service Management (CNSM). IEEE; 2020.","ieee":"S. B. Schneider et al., “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning,” in IEEE International Conference on Network and Service Management (CNSM), 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."},"type":"conference","year":"2020","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."}],"user_id":"35343","ddc":["006"],"file":[{"creator":"stschn","file_id":"19610","file_size":642999,"relation":"main_file","content_type":"application/pdf","date_updated":"2020-09-22T06:36:00Z","date_created":"2020-09-22T06:29:16Z","file_name":"ris_with_copyright.pdf","access_level":"open_access"}],"publisher":"IEEE","author":[{"full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","id":"35343","last_name":"Schneider"},{"last_name":"Manzoor","full_name":"Manzoor, Adnan","first_name":"Adnan"},{"first_name":"Haydar","full_name":"Qarawlus, Haydar","last_name":"Qarawlus"},{"full_name":"Schellenberg, Rafael","first_name":"Rafael","last_name":"Schellenberg"},{"last_name":"Karl","id":"126","first_name":"Holger","full_name":"Karl, Holger"},{"first_name":"Ramin","full_name":"Khalili, Ramin","last_name":"Khalili"},{"first_name":"Artur","full_name":"Hecker, Artur","last_name":"Hecker"}],"file_date_updated":"2020-09-22T06:36:00Z","publication":"IEEE International Conference on Network and Service Management (CNSM)","keyword":["self-driving networks","self-learning","network coordination","service coordination","reinforcement learning","deep learning","nfv"],"status":"public","has_accepted_license":"1","date_created":"2020-09-22T06:28:22Z"},{"abstract":[{"lang":"eng","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."}],"user_id":"63288","ddc":["000"],"publication":"2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)","keyword":["Coflow","Scheduling","Deadlines","Data centers"],"publisher":"IEEE Computer Society","author":[{"full_name":"Hasnain, Asif","first_name":"Asif","id":"63288","last_name":"Hasnain"},{"last_name":"Karl","id":"126","first_name":"Holger","full_name":"Karl, Holger"}],"date_created":"2020-06-06T07:40:45Z","status":"public","conference":{"name":"2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID)","location":"Melbourne, Australia"},"_id":"17082","main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/9139642"}],"year":"2020","type":"conference","citation":{"ieee":"A. Hasnain and H. Karl, “Coflow Scheduling with Performance Guarantees for Data Center Applications,” in 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID), Melbourne, Australia, 2020.","short":"A. Hasnain, H. Karl, in: 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID), IEEE Computer Society, 2020.","bibtex":"@inproceedings{Hasnain_Karl_2020, title={Coflow Scheduling with Performance Guarantees for Data Center Applications}, DOI={https://doi.org/10.1109/CCGrid49817.2020.00010}, 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} }","mla":"Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees for Data Center Applications.” 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID), IEEE Computer Society, 2020, doi:https://doi.org/10.1109/CCGrid49817.2020.00010.","ama":"Hasnain A, Karl H. Coflow Scheduling with Performance Guarantees for Data Center Applications. In: 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID). IEEE Computer Society; 2020. doi:https://doi.org/10.1109/CCGrid49817.2020.00010","apa":"Hasnain, A., & Karl, H. (2020). Coflow Scheduling with Performance Guarantees for Data Center Applications. In 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID). Melbourne, Australia: IEEE Computer Society. https://doi.org/10.1109/CCGrid49817.2020.00010","chicago":"Hasnain, Asif, and Holger Karl. “Coflow Scheduling with Performance Guarantees for Data Center Applications.” In 2020 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGRID). IEEE Computer Society, 2020. https://doi.org/10.1109/CCGrid49817.2020.00010."},"title":"Coflow Scheduling with Performance Guarantees for Data Center Applications","department":[{"_id":"75"}],"project":[{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"},{"name":"SFB 901","_id":"1"}],"publication_status":"published","date_updated":"2022-01-06T06:53:04Z","doi":"https://doi.org/10.1109/CCGrid49817.2020.00010","language":[{"iso":"eng"}]},{"date_created":"2020-03-03T11:42:22Z","status":"public","has_accepted_license":"1","file":[{"file_name":"ris_preprint.pdf","date_created":"2020-03-03T11:42:16Z","access_level":"open_access","file_id":"16220","creator":"stschn","file_size":476590,"relation":"main_file","content_type":"application/pdf","date_updated":"2020-03-03T11:42:16Z"}],"publication":"IEEE Conference on Network Softwarization (NetSoft)","file_date_updated":"2020-03-03T11:42:16Z","author":[{"last_name":"Schneider","id":"35343","first_name":"Stefan Balthasar","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011"},{"first_name":"Narayanan Puthenpurayil","full_name":"Satheeschandran, Narayanan Puthenpurayil","last_name":"Satheeschandran"},{"id":"13271","last_name":"Peuster","full_name":"Peuster, Manuel","first_name":"Manuel"},{"id":"126","last_name":"Karl","full_name":"Karl, Holger","first_name":"Holger"}],"publisher":"IEEE","user_id":"35343","ddc":["000"],"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."}],"citation":{"short":"S.B. Schneider, N.P. Satheeschandran, M. Peuster, H. Karl, in: IEEE Conference on Network Softwarization (NetSoft), IEEE, 2020.","ieee":"S. B. Schneider, N. P. Satheeschandran, M. Peuster, and H. Karl, “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization,” in IEEE Conference on Network Softwarization (NetSoft), Ghent, Belgium, 2020.","chicago":"Schneider, Stefan Balthasar, Narayanan Puthenpurayil Satheeschandran, Manuel Peuster, and Holger Karl. “Machine Learning for Dynamic Resource Allocation in Network Function Virtualization.” In IEEE Conference on Network Softwarization (NetSoft). IEEE, 2020.","apa":"Schneider, S. B., Satheeschandran, N. P., Peuster, M., & Karl, H. (2020). Machine Learning for Dynamic Resource Allocation in Network Function Virtualization. In IEEE Conference on Network Softwarization (NetSoft). Ghent, Belgium: IEEE.","ama":"Schneider SB, Satheeschandran NP, Peuster M, Karl H. Machine Learning for Dynamic Resource Allocation in Network Function Virtualization. In: IEEE Conference on Network Softwarization (NetSoft). 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.” IEEE Conference on Network Softwarization (NetSoft), IEEE, 2020."},"year":"2020","type":"conference","conference":{"location":"Ghent, Belgium","name":"IEEE Conference on Network Softwarization (NetSoft)"},"_id":"16219","project":[{"grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28"},{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"department":[{"_id":"75"}],"title":"Machine Learning for Dynamic Resource Allocation in Network Function Virtualization","language":[{"iso":"eng"}],"oa":"1","date_updated":"2022-01-06T06:52:46Z"},{"date_updated":"2022-01-06T06:52:46Z","_id":"16222","type":"conference","year":"2020","citation":{"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.","ieee":"A. Zafeiropoulos et al., “Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case,” in IEEE Conference on Network Softwarization (NetSoft), 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 IEEE Conference on Network Softwarization (NetSoft), 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 IEEE Conference on Network Softwarization (NetSoft).","ama":"Zafeiropoulos A, Fotopoulou E, Peuster M, et al. Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case. In: IEEE Conference on Network Softwarization (NetSoft). ; 2020.","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} }","mla":"Zafeiropoulos, A., et al. “Benchmarking and Profiling 5G Verticals’ Applications: An Industrial IoT Use Case.” IEEE Conference on Network Softwarization (NetSoft), 2020."},"language":[{"iso":"eng"}],"title":"Benchmarking and Profiling 5G Verticals' Applications: An Industrial IoT Use Case","user_id":"35343","status":"public","project":[{"name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493","_id":"28"}],"date_created":"2020-03-03T11:51:22Z","author":[{"first_name":"A.","full_name":"Zafeiropoulos, A.","last_name":"Zafeiropoulos"},{"first_name":"E.","full_name":"Fotopoulou, E.","last_name":"Fotopoulou"},{"first_name":"Manuel","full_name":"Peuster, Manuel","last_name":"Peuster","id":"13271"},{"id":"35343","last_name":"Schneider","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","first_name":"Stefan Balthasar"},{"full_name":"Gouvas, P.","first_name":"P.","last_name":"Gouvas"},{"full_name":"Behnke, D.","first_name":"D.","last_name":"Behnke"},{"last_name":"Müller","full_name":"Müller, M.","first_name":"M."},{"last_name":"Bök","first_name":"P.","full_name":"Bök, P."},{"full_name":"Trakadas, P.","first_name":"P.","last_name":"Trakadas"},{"last_name":"Karkazis","full_name":"Karkazis, P.","first_name":"P."},{"full_name":"Karl, Holger","first_name":"Holger","id":"126","last_name":"Karl"}],"department":[{"_id":"75"}],"publication":"IEEE Conference on Network Softwarization (NetSoft)"},{"abstract":[{"lang":"eng","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."}],"user_id":"126","title":"A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices","department":[{"_id":"75"}],"publication":"Vehicular Communications","author":[{"first_name":"Nikolaos","full_name":"Nomikos, Nikolaos","last_name":"Nomikos"},{"first_name":"Emmanouel T.","full_name":"Michailidis, Emmanouel T.","last_name":"Michailidis"},{"last_name":"Trakadas","first_name":"Panagiotis","full_name":"Trakadas, Panagiotis"},{"last_name":"Vouyioukas","full_name":"Vouyioukas, Demosthenes","first_name":"Demosthenes"},{"id":"126","last_name":"Karl","full_name":"Karl, Holger","first_name":"Holger"},{"last_name":"Martrat","full_name":"Martrat, Josep","first_name":"Josep"},{"full_name":"Zahariadis, Theodore","first_name":"Theodore","last_name":"Zahariadis"},{"first_name":"Konstantinos","full_name":"Papadopoulos, Konstantinos","last_name":"Papadopoulos"},{"last_name":"Voliotis","full_name":"Voliotis, Stamatis","first_name":"Stamatis"}],"date_created":"2020-03-10T15:59:56Z","status":"public","publication_status":"published","publication_identifier":{"issn":["2214-2096"]},"_id":"16278","date_updated":"2022-01-06T06:52:48Z","doi":"10.1016/j.vehcom.2020.100250","article_number":"100250","language":[{"iso":"eng"}],"year":"2020","type":"journal_article","citation":{"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={10.1016/j.vehcom.2020.100250}, 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} }","mla":"Nomikos, Nikolaos, et al. “A UAV-Based Moving 5G RAN for Massive Connectivity of Mobile Users and IoT Devices.” Vehicular Communications, 100250, 2020, doi:10.1016/j.vehcom.2020.100250.","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. Vehicular Communications. https://doi.org/10.1016/j.vehcom.2020.100250","ama":"Nomikos N, Michailidis ET, Trakadas P, et al. A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices. Vehicular Communications. 2020. doi:10.1016/j.vehcom.2020.100250","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.” Vehicular Communications, 2020. https://doi.org/10.1016/j.vehcom.2020.100250.","ieee":"N. Nomikos et al., “A UAV-based moving 5G RAN for massive connectivity of mobile users and IoT devices,” Vehicular Communications, 2020.","short":"N. Nomikos, E.T. Michailidis, P. Trakadas, D. Vouyioukas, H. Karl, J. Martrat, T. Zahariadis, K. Papadopoulos, S. Voliotis, Vehicular Communications (2020)."}},{"language":[{"iso":"eng"}],"type":"journal_article","year":"2020","citation":{"short":"F. Li, D. Yu, H. Yang, J. Yu, H. Karl, X. Cheng, IEEE Wireless Communications (2020) 24–30.","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,” IEEE Wireless Communications, pp. 24–30, 2020.","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. IEEE Wireless Communications. 2020:24-30. doi:10.1109/mwc.001.1900280","apa":"Li, F., Yu, D., Yang, H., Yu, J., Karl, H., & Cheng, X. (2020). Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey. IEEE Wireless Communications, 24–30. https://doi.org/10.1109/mwc.001.1900280","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.” IEEE Wireless Communications, 2020, 24–30. https://doi.org/10.1109/mwc.001.1900280.","bibtex":"@article{Li_Yu_Yang_Yu_Karl_Cheng_2020, title={Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey}, DOI={10.1109/mwc.001.1900280}, 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} }","mla":"Li, Feng, et al. “Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey.” IEEE Wireless Communications, 2020, pp. 24–30, doi:10.1109/mwc.001.1900280."},"page":"24-30","doi":"10.1109/mwc.001.1900280","_id":"16280","date_updated":"2022-01-06T06:52:48Z","status":"public","date_created":"2020-03-10T16:02:30Z","publication_status":"published","publication_identifier":{"issn":["1536-1284","1558-0687"]},"author":[{"full_name":"Li, Feng","first_name":"Feng","last_name":"Li"},{"first_name":"Dongxiao","full_name":"Yu, Dongxiao","last_name":"Yu"},{"last_name":"Yang","first_name":"Huan","full_name":"Yang, Huan"},{"first_name":"Jiguo","full_name":"Yu, Jiguo","last_name":"Yu"},{"last_name":"Karl","id":"126","first_name":"Holger","full_name":"Karl, Holger"},{"last_name":"Cheng","full_name":"Cheng, Xiuzhen","first_name":"Xiuzhen"}],"publication":"IEEE Wireless Communications","department":[{"_id":"75"}],"user_id":"126","title":"Multi-Armed-Bandit-Based Spectrum Scheduling Algorithms in Wireless Networks: A Survey","abstract":[{"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.","lang":"eng"}]},{"conference":{"location":"Ghent, Belgium","name":"IEEE Conference on Network Softwarization (NetSoft) Demo Track"},"date_updated":"2022-01-06T06:52:50Z","_id":"16400","language":[{"iso":"eng"}],"year":"2020","type":"conference","citation":{"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 IEEE Conference on Network Softwarization (NetSoft) Demo Track, Ghent, Belgium, 2020.","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.","mla":"Müller, Marcel, et al. “Cloud-Native Threat Detection and Containment for Smart Manufacturing.” IEEE Conference on Network Softwarization (NetSoft) Demo Track, 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} }","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 IEEE Conference on Network Softwarization (NetSoft) Demo Track. Ghent, Belgium: IEEE, 2020.","apa":"Müller, M., Behnke, D., Bök, P.-B., Schneider, S. B., Peuster, M., & Karl, H. (2020). Cloud-Native Threat Detection and Containment for Smart Manufacturing. In IEEE Conference on Network Softwarization (NetSoft) Demo Track. Ghent, Belgium: IEEE.","ama":"Müller M, Behnke D, Bök P-B, Schneider SB, Peuster M, Karl H. Cloud-Native Threat Detection and Containment for Smart Manufacturing. In: IEEE Conference on Network Softwarization (NetSoft) Demo Track. Ghent, Belgium: IEEE; 2020."},"abstract":[{"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.","lang":"eng"}],"place":"Ghent, Belgium","user_id":"35343","title":"Cloud-Native Threat Detection and Containment for Smart Manufacturing","department":[{"_id":"75"}],"publication":"IEEE Conference on Network Softwarization (NetSoft) Demo Track","author":[{"full_name":"Müller, Marcel","first_name":"Marcel","last_name":"Müller"},{"last_name":"Behnke","first_name":"Daniel","full_name":"Behnke, Daniel"},{"full_name":"Bök, Patrick-Benjamin","first_name":"Patrick-Benjamin","last_name":"Bök"},{"id":"35343","last_name":"Schneider","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar"},{"full_name":"Peuster, Manuel","first_name":"Manuel","id":"13271","last_name":"Peuster"},{"id":"126","last_name":"Karl","full_name":"Karl, Holger","first_name":"Holger"}],"publisher":"IEEE","date_created":"2020-04-03T11:53:00Z","project":[{"_id":"28","name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493"},{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"status":"public"},{"user_id":"477","ddc":["004"],"file":[{"success":1,"relation":"main_file","content_type":"application/pdf","date_updated":"2019-12-12T10:24:47Z","file_id":"15311","creator":"ups","file_size":454532,"access_level":"closed","file_name":"Karl2019_Article_ACaseForANewITEcosystemOn-The-.pdf","date_created":"2019-12-12T10:24:47Z"}],"file_date_updated":"2019-12-12T10:24:47Z","publication":"Business & Information Systems Engineering","publisher":"Springer","author":[{"full_name":"Karl, Holger","first_name":"Holger","id":"126","last_name":"Karl"},{"first_name":"Dennis","full_name":"Kundisch, Dennis","last_name":"Kundisch","id":"21117"},{"last_name":"Meyer auf der Heide","id":"15523","first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm"},{"last_name":"Wehrheim","id":"573","first_name":"Heike","full_name":"Wehrheim, Heike"}],"date_created":"2019-10-10T13:41:06Z","status":"public","has_accepted_license":"1","volume":62,"intvolume":" 62","_id":"13770","issue":"6","page":"467-481","type":"journal_article","citation":{"mla":"Karl, Holger, et al. “A Case for a New IT Ecosystem: On-The-Fly Computing.” Business & Information Systems Engineering, vol. 62, no. 6, Springer, 2020, pp. 467–81, doi:10.1007/s12599-019-00627-x.","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={10.1007/s12599-019-00627-x}, number={6}, journal={Business & 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. Business & Information Systems Engineering. 2020;62(6):467-481. doi:10.1007/s12599-019-00627-x","apa":"Karl, H., Kundisch, D., Meyer auf der Heide, F., & Wehrheim, H. (2020). A Case for a New IT Ecosystem: On-The-Fly Computing. Business & Information Systems Engineering, 62(6), 467–481. https://doi.org/10.1007/s12599-019-00627-x","chicago":"Karl, Holger, Dennis Kundisch, Friedhelm Meyer auf der Heide, and Heike Wehrheim. “A Case for a New IT Ecosystem: On-The-Fly Computing.” Business & Information Systems Engineering 62, no. 6 (2020): 467–81. https://doi.org/10.1007/s12599-019-00627-x.","ieee":"H. Karl, D. Kundisch, F. Meyer auf der Heide, and H. Wehrheim, “A Case for a New IT Ecosystem: On-The-Fly Computing,” Business & Information Systems Engineering, vol. 62, no. 6, pp. 467–481, 2020, doi: 10.1007/s12599-019-00627-x.","short":"H. Karl, D. Kundisch, F. Meyer auf der Heide, H. Wehrheim, Business & Information Systems Engineering 62 (2020) 467–481."},"year":"2020","title":"A Case for a New IT Ecosystem: On-The-Fly Computing","department":[{"_id":"276"},{"_id":"75"},{"_id":"63"},{"_id":"77"}],"project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"3","name":"SFB 901 - Project Area B"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"82","name":"SFB 901 - Project Area T"},{"_id":"5","name":"SFB 901 - Subproject A1"},{"name":"SFB 901 - Subproject A2","_id":"6"},{"_id":"7","name":"SFB 901 - Subproject A3"},{"name":"SFB 901 - Subproject A4","_id":"8"},{"_id":"9","name":"SFB 901 - Subproject B1"},{"name":"SFB 901 - Subproject B2","_id":"10"},{"name":"SFB 901 - Subproject B3","_id":"11"},{"_id":"12","name":"SFB 901 - Subproject B4"},{"_id":"13","name":"SFB 901 - Subproject C1"},{"_id":"14","name":"SFB 901 - Subproject C2"},{"_id":"15","name":"SFB 901 - Subproject C3"},{"_id":"16","name":"SFB 901 - Subproject C4"},{"name":"SFB 901 - Subproject C5","_id":"17"},{"_id":"83","name":"SFB 901 -Subproject T1"},{"_id":"84","name":"SFB 901 -Subproject T2"},{"_id":"107","name":"SFB 901 -Subproject T3"},{"_id":"158","name":"SFB 901 - T4: SFB 901 -Subproject T4"}],"publication_status":"published","date_updated":"2022-12-02T09:27:17Z","doi":"10.1007/s12599-019-00627-x","language":[{"iso":"eng"}]},{"place":"Washington, DC, USA","title":"Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets","department":[{"_id":"77"},{"_id":"75"}],"project":[{"name":"SFB 901 - Project Area B","_id":"3"},{"_id":"11","name":"SFB 901 - Subproject B3"},{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"_id":"28","name":"5G Development and validation platform for global industry-specific network services and Apps","grant_number":"761493"},{"grant_number":"671517","name":"SONATA NFV: Agile Service Development and Orchestration in 5G Virtualized Networks","call_identifier":"5G PPP Phase 1","_id":"25"}],"date_updated":"2022-01-06T06:59:09Z","oa":"1","language":[{"iso":"eng"}],"abstract":[{"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.","lang":"eng"}],"user_id":"35343","ddc":["040"],"file":[{"file_size":497528,"creator":"stschn","file_id":"6504","date_updated":"2019-01-07T12:38:35Z","content_type":"application/pdf","relation":"main_file","date_created":"2019-01-07T12:38:35Z","file_name":"ris_preprint.pdf","access_level":"open_access"}],"file_date_updated":"2019-01-07T12:38:35Z","publication":"2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)","author":[{"first_name":"Stefan Balthasar","full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","last_name":"Schneider","id":"35343"},{"id":"67200","last_name":"Sharma","full_name":"Sharma, Arnab","first_name":"Arnab"},{"full_name":"Karl, Holger","first_name":"Holger","id":"126","last_name":"Karl"},{"full_name":"Wehrheim, Heike","first_name":"Heike","id":"573","last_name":"Wehrheim"}],"publisher":"IFIP","date_created":"2018-06-18T15:23:18Z","status":"public","has_accepted_license":"1","conference":{"start_date":"2019-04-08","name":"2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)","location":"Washington, DC, USA","end_date":"2019-04-12"},"_id":"3287","main_file_link":[{"url":"http://dl.ifip.org/db/conf/im/im2019/188490.pdf","open_access":"1"}],"page":"116--124","type":"conference","citation":{"mla":"Schneider, Stefan Balthasar, et al. “Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets.” 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM), IFIP, 2019, pp. 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} }","chicago":"Schneider, Stefan Balthasar, Arnab Sharma, Holger Karl, and Heike Wehrheim. “Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets.” In 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM), 116--124. Washington, DC, USA: IFIP, 2019.","ama":"Schneider SB, Sharma A, Karl H, Wehrheim H. Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets. In: 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM). Washington, DC, USA: IFIP; 2019:116--124.","apa":"Schneider, S. B., Sharma, A., Karl, H., & Wehrheim, H. (2019). Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets. In 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM) (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 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM), Washington, DC, USA, 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."},"year":"2019"},{"date_updated":"2022-01-06T07:04:12Z","oa":"1","doi":"10.1109/eucnc.2019.8802016","language":[{"iso":"eng"}],"place":"Valencia, Spain","title":"Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario","department":[{"_id":"75"}],"project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28"}],"_id":"9270","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/8802016"}],"type":"conference","citation":{"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.","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 European Conference on Networks and Communications (EuCNC), 2019.","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: European Conference on Networks and Communications (EuCNC). Valencia, Spain: IEEE; 2019. doi:10.1109/eucnc.2019.8802016","apa":"Schneider, S. B., Peuster, M., Behnke, D., Marcel, M., Bök, P.-B., & Karl, H. (2019). Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario. In European Conference on Networks and Communications (EuCNC). Valencia, Spain: IEEE. https://doi.org/10.1109/eucnc.2019.8802016","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 European Conference on Networks and Communications (EuCNC). Valencia, Spain: IEEE, 2019. https://doi.org/10.1109/eucnc.2019.8802016.","bibtex":"@inproceedings{Schneider_Peuster_Behnke_Marcel_Bök_Karl_2019, place={Valencia, Spain}, title={Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario}, DOI={10.1109/eucnc.2019.8802016}, 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} }","mla":"Schneider, Stefan Balthasar, et al. “Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario.” European Conference on Networks and Communications (EuCNC), IEEE, 2019, doi:10.1109/eucnc.2019.8802016."},"year":"2019","abstract":[{"lang":"eng","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."}],"user_id":"35343","ddc":["000"],"file":[{"file_size":374397,"creator":"stschn","file_id":"9272","date_updated":"2019-12-12T09:15:57Z","content_type":"application/pdf","relation":"main_file","date_created":"2019-04-23T09:29:49Z","file_name":"preprint_ris_with_header.pdf","access_level":"open_access"}],"file_date_updated":"2019-12-12T09:15:57Z","publication":"European Conference on Networks and Communications (EuCNC)","keyword":["5g","vertical","smart manufacturing","nfv"],"publisher":"IEEE","author":[{"id":"35343","last_name":"Schneider","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","first_name":"Stefan Balthasar"},{"full_name":"Peuster, Manuel","first_name":"Manuel","id":"13271","last_name":"Peuster"},{"full_name":"Behnke, Daniel","first_name":"Daniel","last_name":"Behnke"},{"last_name":"Marcel","first_name":"Müller","full_name":"Marcel, Müller"},{"last_name":"Bök","first_name":"Patrick-Benjamin","full_name":"Bök, Patrick-Benjamin"},{"first_name":"Holger","full_name":"Karl, Holger","last_name":"Karl","id":"126"}],"date_created":"2019-04-23T09:27:06Z","status":"public","has_accepted_license":"1"},{"doi":"10.1016/j.icte.2019.02.001","oa":"1","date_updated":"2022-01-06T07:03:51Z","language":[{"iso":"eng"}],"title":"Joint testing and profiling of microservice-based network services using TTCN-3","publication_identifier":{"issn":["2405-9595"]},"publication_status":"published","project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28"}],"department":[{"_id":"75"}],"_id":"8113","citation":{"short":"M. Peuster, C. Dröge, C. Boos, H. Karl, ICT Express (2019).","ieee":"M. Peuster, C. Dröge, C. Boos, and H. Karl, “Joint testing and profiling of microservice-based network services using TTCN-3,” ICT Express, 2019.","ama":"Peuster M, Dröge C, Boos C, Karl H. Joint testing and profiling of microservice-based network services using TTCN-3. ICT Express. 2019. doi:10.1016/j.icte.2019.02.001","apa":"Peuster, M., Dröge, C., Boos, C., & Karl, H. (2019). Joint testing and profiling of microservice-based network services using TTCN-3. ICT Express. https://doi.org/10.1016/j.icte.2019.02.001","chicago":"Peuster, Manuel, Christian Dröge, Clemens Boos, and Holger Karl. “Joint Testing and Profiling of Microservice-Based Network Services Using TTCN-3.” ICT Express, 2019. https://doi.org/10.1016/j.icte.2019.02.001.","bibtex":"@article{Peuster_Dröge_Boos_Karl_2019, title={Joint testing and profiling of microservice-based network services using TTCN-3}, DOI={10.1016/j.icte.2019.02.001}, 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.” ICT Express, Elsevier BV, 2019, doi:10.1016/j.icte.2019.02.001."},"year":"2019","type":"journal_article","main_file_link":[{"open_access":"1","url":"https://www.sciencedirect.com/science/article/pii/S2405959519300402"}],"ddc":["000"],"user_id":"477","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"}],"has_accepted_license":"1","status":"public","date_created":"2019-02-26T18:07:33Z","author":[{"full_name":"Peuster, Manuel","first_name":"Manuel","id":"13271","last_name":"Peuster"},{"last_name":"Dröge","full_name":"Dröge, Christian","first_name":"Christian"},{"last_name":"Boos","first_name":"Clemens","full_name":"Boos, Clemens"},{"id":"126","last_name":"Karl","full_name":"Karl, Holger","first_name":"Holger"}],"publisher":"Elsevier BV","publication":"ICT Express","file_date_updated":"2019-02-26T18:09:43Z","file":[{"relation":"main_file","date_updated":"2019-02-26T18:09:43Z","content_type":"application/pdf","creator":"peuster","file_id":"8114","file_size":232599,"access_level":"open_access","date_created":"2019-02-26T18:09:43Z","file_name":"main_for_ris.pdf"}]},{"publication_status":"accepted","status":"public","project":[{"_id":"23","name":"5G Programmable Infrastructure Converging disaggregated neTwork and compUte Resources","grant_number":"762057"},{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"date_created":"2019-03-04T09:23:54Z","author":[{"full_name":"Dräxler, Sevil","first_name":"Sevil","id":"31764","last_name":"Dräxler"},{"full_name":"Karl, Holger","first_name":"Holger","id":"126","last_name":"Karl"}],"publication":"5th IEEE International Conference on Network Softwarization (NetSoft) 2019","department":[{"_id":"75"}],"title":"SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures","user_id":"31764","year":"2019","citation":{"ieee":"S. Dräxler and H. Karl, “SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures,” in 5th IEEE International Conference on Network Softwarization (NetSoft) 2019, Paris.","short":"S. Dräxler, H. Karl, in: 5th IEEE International Conference on Network Softwarization (NetSoft) 2019, n.d.","mla":"Dräxler, Sevil, and Holger Karl. “SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures.” 5th IEEE International Conference on Network Softwarization (NetSoft) 2019.","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} }","apa":"Dräxler, S., & Karl, H. (n.d.). SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures. In 5th IEEE International Conference on Network Softwarization (NetSoft) 2019. Paris.","ama":"Dräxler S, Karl H. SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures. In: 5th IEEE International Conference on Network Softwarization (NetSoft) 2019.","chicago":"Dräxler, Sevil, and Holger Karl. “SPRING: Scaling, Placement, and Routing of Heterogeneous Services with Flexible Structures.” In 5th IEEE International Conference on Network Softwarization (NetSoft) 2019, n.d."},"type":"conference","language":[{"iso":"eng"}],"_id":"8240","date_updated":"2022-01-06T07:03:52Z","conference":{"end_date":"2019-06-28","location":"Paris","start_date":"2019-06-24","name":"5th IEEE International Conference on Network Softwarization (NetSoft) 2019"}},{"conference":{"end_date":"2019-06-28","location":"Paris","name":"5th IEEE International Conference on Network Softwarization (NetSoft 2019)","start_date":"2019-06-24"},"_id":"8792","main_file_link":[{"url":"https://doi.org/10.1109/NETSOFT.2019.8806685"}],"citation":{"bibtex":"@inproceedings{Peuster_Schneider_Behnke_Müller_Bök_Karl_2019, place={Paris}, title={Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case}, DOI={10.1109/NETSOFT.2019.8806685}, 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.” 5th IEEE International Conference on Network Softwarization (NetSoft 2019), 2019, doi:10.1109/NETSOFT.2019.8806685.","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 5th IEEE International Conference on Network Softwarization (NetSoft 2019). Paris, 2019. https://doi.org/10.1109/NETSOFT.2019.8806685.","ama":"Peuster M, Schneider SB, Behnke D, Müller M, Bök P-B, Karl H. Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case. In: 5th IEEE International Conference on Network Softwarization (NetSoft 2019). Paris; 2019. doi:10.1109/NETSOFT.2019.8806685","apa":"Peuster, M., Schneider, S. B., Behnke, D., Müller, M., Bök, P.-B., & Karl, H. (2019). Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case. In 5th IEEE International Conference on Network Softwarization (NetSoft 2019). Paris. https://doi.org/10.1109/NETSOFT.2019.8806685","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 5th IEEE International Conference on Network Softwarization (NetSoft 2019), Paris, 2019.","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."},"type":"conference","year":"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."}],"user_id":"13271","ddc":["000"],"file":[{"access_level":"open_access","date_created":"2019-04-01T13:46:18Z","file_name":"main_for_ris.pdf","relation":"main_file","date_updated":"2019-04-01T13:46:18Z","content_type":"application/pdf","file_id":"8794","creator":"peuster","file_size":1693793}],"file_date_updated":"2019-04-01T13:46:18Z","publication":"5th IEEE International Conference on Network Softwarization (NetSoft 2019)","author":[{"id":"13271","last_name":"Peuster","full_name":"Peuster, Manuel","first_name":"Manuel"},{"first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011","full_name":"Schneider, Stefan Balthasar","last_name":"Schneider","id":"35343"},{"full_name":"Behnke, Daniel","first_name":"Daniel","last_name":"Behnke"},{"first_name":"Marcel","full_name":"Müller, Marcel","last_name":"Müller"},{"first_name":"Patrick-Benjamin","full_name":"Bök, Patrick-Benjamin","last_name":"Bök"},{"first_name":"Holger","full_name":"Karl, Holger","last_name":"Karl","id":"126"}],"date_created":"2019-04-01T13:37:05Z","status":"public","has_accepted_license":"1","date_updated":"2022-01-06T07:04:01Z","oa":"1","doi":"10.1109/NETSOFT.2019.8806685","language":[{"iso":"eng"}],"place":"Paris","title":"Prototyping and Demonstrating 5G Verticals: The Smart Manufacturing Case","department":[{"_id":"75"}],"project":[{"grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28"},{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}]},{"_id":"8795","article_number":"e2067","main_file_link":[{"url":"https://onlinelibrary.wiley.com/doi/abs/10.1002/nem.2067"}],"year":"2019","citation":{"ieee":"M. Peuster, H. Küttner, and H. Karl, “A flow handover protocol to support state migration in softwarized networks,” International Journal of Network Management, 2019.","short":"M. Peuster, H. Küttner, H. Karl, International Journal of Network Management (2019).","bibtex":"@article{Peuster_Küttner_Karl_2019, title={A flow handover protocol to support state migration in softwarized networks}, DOI={10.1002/nem.2067}, number={e2067}, journal={International Journal of Network Management}, author={Peuster, Manuel and Küttner, Hannes and Karl, Holger}, year={2019} }","mla":"Peuster, Manuel, et al. “A Flow Handover Protocol to Support State Migration in Softwarized Networks.” International Journal of Network Management, e2067, 2019, doi:10.1002/nem.2067.","chicago":"Peuster, Manuel, Hannes Küttner, and Holger Karl. “A Flow Handover Protocol to Support State Migration in Softwarized Networks.” International Journal of Network Management, 2019. https://doi.org/10.1002/nem.2067.","apa":"Peuster, M., Küttner, H., & Karl, H. (2019). A flow handover protocol to support state migration in softwarized networks. International Journal of Network Management. https://doi.org/10.1002/nem.2067","ama":"Peuster M, Küttner H, Karl H. A flow handover protocol to support state migration in softwarized networks. International Journal of Network Management. 2019. doi:10.1002/nem.2067"},"type":"journal_article","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"}],"ddc":["000"],"user_id":"13271","file_date_updated":"2019-04-01T18:04:14Z","publication":"International Journal of Network Management","author":[{"id":"13271","last_name":"Peuster","full_name":"Peuster, Manuel","first_name":"Manuel"},{"full_name":"Küttner, Hannes","first_name":"Hannes","last_name":"Küttner"},{"first_name":"Holger","full_name":"Karl, Holger","last_name":"Karl","id":"126"}],"file":[{"date_created":"2019-04-01T18:04:14Z","file_name":"main_for_ris.pdf","access_level":"open_access","creator":"peuster","file_id":"8796","file_size":2571927,"relation":"main_file","content_type":"application/pdf","date_updated":"2019-04-01T18:04:14Z"}],"date_created":"2019-04-01T17:47:36Z","has_accepted_license":"1","status":"public","date_updated":"2022-01-06T07:04:01Z","doi":"10.1002/nem.2067","oa":"1","language":[{"iso":"eng"}],"title":"A flow handover protocol to support state migration in softwarized networks","department":[{"_id":"75"}],"publication_status":"published","publication_identifier":{"issn":["1055-7148","1099-1190"]},"project":[{"_id":"28","grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps"},{"name":"SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject C4","_id":"16"}]},{"_id":"9823","date_updated":"2022-01-06T07:04:22Z","doi":"10.1109/mcom.2019.1800810","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/8713806"}],"language":[{"iso":"eng"}],"year":"2019","type":"journal_article","citation":{"ieee":"T. Soenen et al., “Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO,” IEEE Communications Magazine, pp. 89–95, 2019.","short":"T. Soenen, W. Tavernier, M. Peuster, F. Vicens, G. Xilouris, S. Kolometsos, M.-A. Kourtis, D. Colle, IEEE Communications Magazine (2019) 89–95.","mla":"Soenen, Thomas, et al. “Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO.” IEEE Communications Magazine, 2019, pp. 89–95, doi:10.1109/mcom.2019.1800810.","bibtex":"@article{Soenen_Tavernier_Peuster_Vicens_Xilouris_Kolometsos_Kourtis_Colle_2019, title={Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO}, DOI={10.1109/mcom.2019.1800810}, journal={IEEE Communications Magazine}, author={Soenen, Thomas and Tavernier, Wouter and Peuster, Manuel and Vicens, Felipe and Xilouris, George and Kolometsos, Stavros and Kourtis, Michail-Alexandros and Colle, Didier}, year={2019}, pages={89–95} }","apa":"Soenen, T., Tavernier, W., Peuster, M., Vicens, F., Xilouris, G., Kolometsos, S., … Colle, D. (2019). Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO. IEEE Communications Magazine, 89–95. https://doi.org/10.1109/mcom.2019.1800810","ama":"Soenen T, Tavernier W, Peuster M, et al. Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO. IEEE Communications Magazine. 2019:89-95. doi:10.1109/mcom.2019.1800810","chicago":"Soenen, Thomas, Wouter Tavernier, Manuel Peuster, Felipe Vicens, George Xilouris, Stavros Kolometsos, Michail-Alexandros Kourtis, and Didier Colle. “Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO.” IEEE Communications Magazine, 2019, 89–95. https://doi.org/10.1109/mcom.2019.1800810."},"page":"89-95","user_id":"13271","title":"Empowering Network Service Developers: Enhanced NFV DevOps and Programmable MANO","author":[{"last_name":"Soenen","full_name":"Soenen, Thomas","first_name":"Thomas"},{"last_name":"Tavernier","first_name":"Wouter","full_name":"Tavernier, Wouter"},{"full_name":"Peuster, Manuel","first_name":"Manuel","id":"13271","last_name":"Peuster"},{"first_name":"Felipe","full_name":"Vicens, Felipe","last_name":"Vicens"},{"last_name":"Xilouris","full_name":"Xilouris, George","first_name":"George"},{"last_name":"Kolometsos","first_name":"Stavros","full_name":"Kolometsos, Stavros"},{"last_name":"Kourtis","first_name":"Michail-Alexandros","full_name":"Kourtis, Michail-Alexandros"},{"first_name":"Didier","full_name":"Colle, Didier","last_name":"Colle"}],"publication":"IEEE Communications Magazine","department":[{"_id":"75"}],"status":"public","date_created":"2019-05-16T09:07:19Z","project":[{"grant_number":"761493","name":"5G Development and validation platform for global industry-specific network services and Apps","_id":"28"}],"publication_identifier":{"issn":["0163-6804","1558-1896"]},"publication_status":"published"},{"page":"96-102","year":"2019","type":"journal_article","citation":{"short":"M. Peuster, S.B. Schneider, M. Zhao, G. Xilouris, P. Trakadas, F. Vicens, W. Tavernier, T. Soenen, R. Vilalta, G. Andreou, D. Kyriazis, H. Karl, IEEE Communications Magazine (2019) 96–102.","ieee":"M. Peuster et al., “Introducing Automated Verification and Validation for Virtualized Network Functions and Services,” IEEE Communications Magazine, pp. 96–102, 2019.","chicago":"Peuster, Manuel, Stefan Balthasar Schneider, Mengxuan Zhao, George Xilouris, Panagiotis Trakadas, Felipe Vicens, Wouter Tavernier, et al. “Introducing Automated Verification and Validation for Virtualized Network Functions and Services.” IEEE Communications Magazine, 2019, 96–102. https://doi.org/10.1109/mcom.2019.1800873.","apa":"Peuster, M., Schneider, S. B., Zhao, M., Xilouris, G., Trakadas, P., Vicens, F., … Karl, H. (2019). Introducing Automated Verification and Validation for Virtualized Network Functions and Services. IEEE Communications Magazine, 96–102. https://doi.org/10.1109/mcom.2019.1800873","ama":"Peuster M, Schneider SB, Zhao M, et al. Introducing Automated Verification and Validation for Virtualized Network Functions and Services. IEEE Communications Magazine. 2019:96-102. doi:10.1109/mcom.2019.1800873","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={10.1109/mcom.2019.1800873}, 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} }","mla":"Peuster, Manuel, et al. “Introducing Automated Verification and Validation for Virtualized Network Functions and Services.” IEEE Communications Magazine, 2019, pp. 96–102, doi:10.1109/mcom.2019.1800873."},"main_file_link":[{"url":"https://ieeexplore.ieee.org/document/8713807"}],"_id":"9824","date_created":"2019-05-16T09:09:16Z","status":"public","has_accepted_license":"1","file_date_updated":"2019-05-16T09:13:40Z","publication":"IEEE Communications Magazine","author":[{"id":"13271","last_name":"Peuster","full_name":"Peuster, Manuel","first_name":"Manuel"},{"full_name":"Schneider, Stefan Balthasar","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","id":"35343","last_name":"Schneider"},{"full_name":"Zhao, Mengxuan","first_name":"Mengxuan","last_name":"Zhao"},{"last_name":"Xilouris","first_name":"George","full_name":"Xilouris, George"},{"first_name":"Panagiotis","full_name":"Trakadas, Panagiotis","last_name":"Trakadas"},{"last_name":"Vicens","full_name":"Vicens, Felipe","first_name":"Felipe"},{"first_name":"Wouter","full_name":"Tavernier, Wouter","last_name":"Tavernier"},{"full_name":"Soenen, Thomas","first_name":"Thomas","last_name":"Soenen"},{"last_name":"Vilalta","first_name":"Ricard","full_name":"Vilalta, Ricard"},{"last_name":"Andreou","full_name":"Andreou, George","first_name":"George"},{"first_name":"Dimosthenis","full_name":"Kyriazis, Dimosthenis","last_name":"Kyriazis"},{"last_name":"Karl","id":"126","first_name":"Holger","full_name":"Karl, Holger"}],"file":[{"access_level":"open_access","file_name":"main_for_ris.pdf","date_created":"2019-05-16T09:13:40Z","date_updated":"2019-05-16T09:13:40Z","content_type":"application/pdf","relation":"main_file","description":"Preprint of original article: M. Peuster et al., \"Introducing Automated Verification and Validation for Virtualized Network Functions and Services,\" in IEEE Communications Magazine, vol. 57, no. 5, pp. 96-102, May 2019.\ndoi: 10.1109/MCOM.2019.1800873\n\n","file_size":1735036,"title":"Introducing Automated Verification and Validation for Virtualized Network Functions and Services","creator":"peuster","file_id":"9825"}],"ddc":["000"],"user_id":"13271","language":[{"iso":"eng"}],"doi":"10.1109/mcom.2019.1800873","oa":"1","date_updated":"2022-01-06T07:04:23Z","publication_status":"published","publication_identifier":{"issn":["0163-6804","1558-1896"]},"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"department":[{"_id":"75"}],"title":"Introducing Automated Verification and Validation for Virtualized Network Functions and Services"},{"oa":"1","date_updated":"2022-01-06T07:03:22Z","language":[{"iso":"eng"}],"title":"Power Allocation with a Wireless Multi-cast Aware Routing for Virtual Network Embedding","place":"Las Vegas","project":[{"_id":"27","name":"Akustische Sensornetzwerke - Teilprojekt "},{"_id":"27","name":"Akustische Sensornetzwerke - Teilprojekt \"Verteilte akustische Signalverarbeitung über funkbasierte Sensornetzwerke"}],"publication_status":"accepted","department":[{"_id":"75"}],"_id":"6860","citation":{"ieee":"H. Afifi and H. Karl, “Power Allocation with a Wireless Multi-cast Aware Routing for Virtual Network Embedding,” in 2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019).","short":"H. Afifi, H. Karl, in: 2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019), IEEE, Las Vegas, n.d.","bibtex":"@inproceedings{Afifi_Karl, place={Las Vegas}, title={Power Allocation with a Wireless Multi-cast Aware Routing for Virtual Network Embedding}, booktitle={2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019)}, publisher={IEEE}, author={Afifi, Haitham and Karl, Holger} }","mla":"Afifi, Haitham, and Holger Karl. “Power Allocation with a Wireless Multi-Cast Aware Routing for Virtual Network Embedding.” 2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019), IEEE.","chicago":"Afifi, Haitham, and Holger Karl. “Power Allocation with a Wireless Multi-Cast Aware Routing for Virtual Network Embedding.” In 2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019). Las Vegas: IEEE, n.d.","ama":"Afifi H, Karl H. Power Allocation with a Wireless Multi-cast Aware Routing for Virtual Network Embedding. In: 2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019). Las Vegas: IEEE.","apa":"Afifi, H., & Karl, H. (n.d.). Power Allocation with a Wireless Multi-cast Aware Routing for Virtual Network Embedding. In 2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019). Las Vegas: IEEE."},"year":"2019","type":"conference","user_id":"65718","ddc":["000"],"status":"public","has_accepted_license":"1","date_created":"2019-01-17T15:51:34Z","file":[{"creator":"hafifi","file_id":"6861","file_size":320283,"relation":"main_file","date_updated":"2019-01-17T15:49:37Z","content_type":"application/pdf","file_name":"globecom.pdf","date_created":"2019-01-17T15:49:37Z","access_level":"open_access"}],"publisher":"IEEE","author":[{"id":"65718","last_name":"Afifi","full_name":"Afifi, Haitham","first_name":"Haitham"},{"first_name":"Holger","full_name":"Karl, Holger","last_name":"Karl","id":"126"}],"publication":"2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC2019)","file_date_updated":"2019-01-17T15:49:37Z"},{"author":[{"full_name":"Guenther, Michael","first_name":"Michael","last_name":"Guenther"},{"full_name":"Afifi, Haitham","first_name":"Haitham","id":"65718","last_name":"Afifi"},{"first_name":"Andreas","full_name":"Brendel, Andreas","last_name":"Brendel"},{"id":"126","last_name":"Karl","full_name":"Karl, Holger","first_name":"Holger"},{"first_name":"Walter","full_name":"Kellermann, Walter","last_name":"Kellermann"}],"department":[{"_id":"75"}],"publication":"2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)","status":"public","date_created":"2019-07-24T07:25:01Z","project":[{"name":"Akustische Sensornetzwerke - Teilprojekt ","_id":"27"},{"_id":"27","name":"Akustische Sensornetzwerke - Teilprojekt \"Verteilte akustische Signalverarbeitung über funkbasierte Sensornetzwerke"}],"place":"New Paltz, USA","abstract":[{"lang":"eng","text":"By distributing the computational load over the nodes of a Wireless Acoustic Sensor Network (WASN), the real-time capability of the TRINICON (TRIple-N-Independent component analysis for CONvolutive mixtures) framework for Blind Source Separation (BSS) can be ensured, even if the individual network nodes are not powerful enough to run TRINICON in real-time by themselves. To optimally utilize the limited computing power and data rate in WASNs, the MARVELO (Multicast-Aware Routing for Virtual network Embedding with Loops in Overlays) framework is expanded for use with TRINICON, while a feature-based selection scheme is proposed to exploit the most beneficial parts of the input signal for adapting the demixing system. The simulation results of realistic scenarios show only a minor degradation of the separation performance even in heavily resource-limited situations."}],"title":"Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks","user_id":"65718","citation":{"ama":"Guenther M, Afifi H, Brendel A, Karl H, Kellermann W. Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks. In: 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019). New Paltz, USA; 2019.","apa":"Guenther, M., Afifi, H., Brendel, A., Karl, H., & Kellermann, W. (2019). Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks. In 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019). New Paltz, USA.","chicago":"Guenther, Michael, Haitham Afifi, Andreas Brendel, Holger Karl, and Walter Kellermann. “Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks.” In 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019). New Paltz, USA, 2019.","mla":"Guenther, Michael, et al. “Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks.” 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019), 2019.","bibtex":"@inproceedings{Guenther_Afifi_Brendel_Karl_Kellermann_2019, place={New Paltz, USA}, title={Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks}, booktitle={2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019)}, author={Guenther, Michael and Afifi, Haitham and Brendel, Andreas and Karl, Holger and Kellermann, Walter}, year={2019} }","short":"M. Guenther, H. Afifi, A. Brendel, H. Karl, W. Kellermann, in: 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019), New Paltz, USA, 2019.","ieee":"M. Guenther, H. Afifi, A. Brendel, H. Karl, and W. Kellermann, “Sparse Adaptation of Distributed Blind Source Separation in Acoustic Sensor Networks,” in 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (WASPAA 2019), 2019."},"year":"2019","type":"conference","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:51:22Z","_id":"12880"},{"status":"public","project":[{"_id":"27","name":"Akustische Sensornetzwerke - Teilprojekt \"Verteilte akustische Signalverarbeitung über funkbasierte Sensornetzwerke"}],"date_created":"2019-07-24T07:25:28Z","author":[{"last_name":"Afifi","id":"65718","first_name":"Haitham","full_name":"Afifi, Haitham"},{"full_name":"Karl, Holger","first_name":"Holger","id":"126","last_name":"Karl"}],"department":[{"_id":"75"}],"publication":"2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC'19)","title":"An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding","user_id":"65718","place":"Paris, France","abstract":[{"text":"Internet of Things (IoT) applications witness an exceptional evolution of traffic demands, while existing protocols, as seen in wireless sensor networks (WSNs), struggle to cope with these demands. Traditional protocols rely on finding a routing path between sensors generating data and sinks acting as gateway or databases. Meanwhile, the network will suffer from high collisions in case of high data rates. In this context, in-network processing solutions are used to leverage the wireless nodes' computations, by distributing processing tasks on the nodes along the routing path. Although in-network processing solutions are very popular in wired networks (e.g., data centers and wide area networks), there are many challenges to adopt these solutions in wireless networks, due to the interference problem. In this paper, we solve the problem of routing and task distribution jointly using a greedy Virtual Network Embedding (VNE) algorithm, and consider power control as well. Through simulations, we compare the proposed algorithm to optimal solutions and show that it achieves good results in terms of delay. Moreover, we discuss its sub-optimality by driving tight lower bounds and loose upper bounds. We also compare our solution with another wireless VNE solution to show the trade-off between delay and symbol error rate.","lang":"eng"}],"year":"2019","type":"conference","citation":{"short":"H. Afifi, H. Karl, in: 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19), Paris, France, 2019.","ieee":"H. Afifi and H. Karl, “An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding,” in 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19), 2019.","chicago":"Afifi, Haitham, and Holger Karl. “An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding.” In 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19). Paris, France, 2019.","ama":"Afifi H, Karl H. An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding. In: 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19). Paris, France; 2019.","apa":"Afifi, H., & Karl, H. (2019). An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding. In 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19). Paris, France.","bibtex":"@inproceedings{Afifi_Karl_2019, place={Paris, France}, title={An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding}, booktitle={2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19)}, author={Afifi, Haitham and Karl, Holger}, year={2019} }","mla":"Afifi, Haitham, and Holger Karl. “An Approximate Power Control Algorithm for a Multi-Cast Wireless Virtual Network Embedding.” 2019 12th IFIP Wireless and Mobile Networking Conference (WMNC) (WMNC’19), 2019."},"language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:51:22Z","_id":"12881"}]