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61 Publications


2024 | Journal Article | LibreCat-ID: 53531
Ghafouri S, Razavi K, Salmani M, et al. IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency. Journal of Systems Research (JSys).
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2022 | Journal Article | LibreCat-ID: 32854
Redder A, Ramaswamy A, Karl H. Practical Network Conditions for the Convergence of Distributed Optimization. IFAC-PapersOnLine. 2022;55(13):133–138.
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2021 | Journal Article | LibreCat-ID: 21808 | OA
Schneider SB, Khalili R, Manzoor A, et al. Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. Transactions on Network and Service Management. 2021. doi:10.1109/TNSM.2021.3076503
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2020 | Journal Article | LibreCat-ID: 16278
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
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2020 | Journal Article | LibreCat-ID: 16280
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
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2020 | Journal Article | LibreCat-ID: 13770
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
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2019 | Journal Article | LibreCat-ID: 8113 | OA
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
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2019 | Journal Article | LibreCat-ID: 8795 | OA
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
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2019 | Journal Article | LibreCat-ID: 9823
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
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2019 | Journal Article | LibreCat-ID: 9824 | OA
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
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2019 | Journal Article | LibreCat-ID: 15741
Leong AS, Ramaswamy A, Quevedo DE, Karl H, Shi L. Deep reinforcement learning for wireless sensor scheduling in cyber–physical systems. Automatica. 2019. doi:10.1016/j.automatica.2019.108759
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2019 | Journal Article | LibreCat-ID: 10325 | OA
Peuster M, Marchetti M, García de Blas G, Karl H. Automated testing of NFV orchestrators against carrier-grade multi-PoP scenarios using emulation-based smoke testing. EURASIP Journal on Wireless Communications and Networking. 2019. doi:10.1186/s13638-019-1493-2
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2018 | Journal Article | LibreCat-ID: 3152 | OA
Dräxler S, Karl H, Mann ZA. JASPER: Joint Optimization of Scaling, Placement, and Routing of Virtual Network Services. IEEE Transactions on Network and Service Management. 2018. doi:10.1109/TNSM.2018.2846572
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2017 | Journal Article | LibreCat-ID: 58 | OA
Dräxler S, Karl H. Specification, Composition, and Placement of Network Services with Flexible Structures. International Journal of Network Management. 2017;(2):1--16. doi:10.1002/nem.1963
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2017 | Journal Article | LibreCat-ID: 64
Keller M, Karl H. Response-Time-Optimised Service Deployment: MILP Formulations of Piece-wise Linear Functions Approximating Non-linear Bivariate Mixed-integer Functions. IEEE Transactions on Network and Service Management. 2017;(1):121--135. doi:10.1109/TNSM.2016.2611590
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2016 | Journal Article | LibreCat-ID: 714 | OA
Karl H, Dräxler S, Peuster M, et al. DevOps for network function virtualisation: an architectural approach. Transactions on Emerging Telecommunications Technologies. 2016;27(9):1206-1215. doi:10.1002/ett.3084
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2016 | Journal Article | LibreCat-ID: 726
Wette P, Karl H. DCT2Gen: A traffic generator for data centers. Computer Communications. 2016:45--58. doi:10.1016/j.comcom.2015.12.001
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2016 | Journal Article | LibreCat-ID: 1373
Herlich M, Bredenbals N, Karl H. Delayed (de-)activation in servers with a sleep mode. Sustainable Computing: Informatics and Systems. 2016;10:48-55. doi:10.1016/j.suscom.2016.04.002
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2014 | Journal Article | LibreCat-ID: 467
Künsemöller J, Karl H. A Game-Theoretic Approach to the Financial Benefits of Infrastructure-as-a-Service. Future Generation Computer Systems. 2014:44--52. doi:10.1016/j.future.2014.03.005
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2014 | Journal Article | LibreCat-ID: 753
Beister F, Dräxler M, Aelken J, Karl H. Power model design for ICT systems -- A generic approach. Computer Communications. 2014:77--85. doi:10.1016/j.comcom.2014.02.007
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2014 | Journal Article | LibreCat-ID: 754
Azeem M. Khan R, Karl H. MAC Protocols for Cooperative Diversity in Wireless LANs and Wireless Sensor Networks. IEEE Communications Surveys and Tutorials. 2014;(1):46--63. doi:10.1109/SURV.2013.042313.00067
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2014 | Journal Article | LibreCat-ID: 1375
Beister F, Dräxler M, Aelken J, Karl H. Power model design for ICT systems – A generic approach. Computer Communications. 2014;50:77-85. doi:10.1016/j.comcom.2014.02.007
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2013 | Journal Article | LibreCat-ID: 770
Dannewitz C, Kutscher D, Ohlman B, Farrell S, Ahlgren B, Karl H. Network of Information (NetInf) - An information-centric networking architecture. Computer Communications. 2013;(7):721--735. doi:10.1016/j.comcom.2013.01.009
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2013 | Journal Article | LibreCat-ID: 771
Dräxler M, Biermann T, Karl H. Improving Cooperative Transmission Feasibility by Network Reconfiguration in Limited Backhaul Networks. International Journal of Wireless Information Networks. 2013;(3):183--194. doi:10.1007/s10776-013-0207-7
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2013 | Journal Article | LibreCat-ID: 769
Biermann T, Scalia L, Choi C, Kellerer W, Karl H. How backhaul networks influence the feasibility of coordinated multipoint in cellular networks. {IEEE} Communications Magazine. 2013;(8). doi:10.1109/MCOM.2013.6576356
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2012 | Journal Article | LibreCat-ID: 782
Biermann T, Scalia L, Choi C, Karl H, Kellerer W. CoMP clustering and backhaul limitations in cooperative cellular mobile access networks. Pervasive and Mobile Computing. 2012;(5):662--681. doi:10.1016/j.pmcj.2012.03.005
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2012 | Journal Article | LibreCat-ID: 783
Willig A, Karl H, Kipnis D. Segment-based packet combining: how to schedule a dense relayer cluster? Wireless Networks. 2012;(2):199--213. doi:10.1007/s11276-011-0395-y
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2011 | Journal Article | LibreCat-ID: 793
Ahlgren B, A. Aranda-Gutierrez P, Chemouil P, et al. Content, connectivity, and cloud: ingredients for the network of the future. IEEE Communications Magazine. 2011;(7):62--70. doi:10.1109/MCOM.2011.5936156
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2011 | Journal Article | LibreCat-ID: 794
Conti M, Chong S, Fdida S, et al. Research challenges towards the Future Internet. Computer Communications. 2011;(18):2115--2134. doi:10.1016/j.comcom.2011.09.001
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2011 | Journal Article | LibreCat-ID: 1615
Warneke D, Dannewitz C. Load Balancing in P2P Networks: Using Statistics to Fight Data and Execution Skew. Journal of Advances in Information Technology. 2011;2(1). doi:10.4304/jait.2.1.40-49
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2011 | Journal Article | LibreCat-ID: 1376
Dannewitz C, Biermann T, Dräxler M, Karl H. Complex Queries in P2P Networks with Resource-Constrained Devices. Journal of Advances in Information Technology. 2011;2(1). doi:10.4304/jait.2.1.2-14
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2010 | Journal Article | LibreCat-ID: 1831
Valentin S, Karl H. Cooperative feedback to improve capacity and error rate in multiuser diversity systems - an OFDM case study. European Transactions on Telecommunications. 2010;21(8):714-724. doi:10.1002/ett.1454
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2010 | Journal Article | LibreCat-ID: 805
Valentin S, Karl H. Cooperative feedback to improve capacity and error rate in multiuser diversity systems - an OFDM case study. European Transactions on Telecommunications. 2010;(8):714--724. doi:10.1002/ett.1454
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2010 | Journal Article | LibreCat-ID: 806
S. Lichte H, Valentin S, Karl H. Expected interference in wireless networks with geometric path loss: a closed-form approximation. IEEE Communications Letters. 2010;(2):130--132. doi:10.1109/LCOMM.2010.02.091863
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2010 | Journal Article | LibreCat-ID: 807
Simon Lichte H, Valentin S, Karl H. Automated Development of Cooperative MAC Protocols - A Compiler-Assisted Approach. Mobile Networks and Applications. 2010;(6):769--785. doi:10.1007/s11036-009-0210-5
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2009 | Journal Article | LibreCat-ID: 814
Biermann T, Dräxler M, Karl H. Flow Synchronization for Network Coding. Journal of Communications. 2009;(11):873--884. doi:10.4304/jcm.4.11.873-884
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2009 | Journal Article | LibreCat-ID: 815
Valentin S, S. Lichte H, Karl H, et al. Cooperative Wireless Networking Beyond Store-and-Forward . Wireless Personal Communications. 2009;(1):49--68. doi:10.1007/s11277-007-9429-2
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2007 | Journal Article | LibreCat-ID: 830
Festag A, Karl H, Wolisz A. Investigation of multicast-based mobility support in all-IP cellular networks. Wireless Communications and Mobile Computing. 2007;(3):319--339. doi:10.1002/wcm.328
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2007 | Journal Article | LibreCat-ID: 1018
Valentin S, Lichte HS, Karl H, et al. Implementing cooperative wireless networks. Cognitive Wireless Networks. 2007:155--178. doi:10.1007/978-1-4020-5979-7_8
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2006 | Journal Article | LibreCat-ID: 837
Hoene C, Karl H, Wolisz A. A perceptual quality model intended for adaptive VoIP applications. Int J Communication Systems. 2006;(3):299--316. doi:10.1002/dac.755
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2006 | Journal Article | LibreCat-ID: 838
Gross J, Geerdes H-}Florian, Karl H, Wolisz A. Performance analysis of dynamic OFDMA systems with inband signaling. IEEE Journal on Selected Areas in Communications. 2006;(3):427--436. doi:10.1109/JSAC.2005.862386
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2006 | Journal Article | LibreCat-ID: 839
Carlson E, Prehofer C, Bettstetter C, Karl H, Wolisz A. A Distributed End-to-End Reservation Protocol for IEEE 802.11-Based Wireless Mesh Networks. IEEE Journal on Selected Areas in Communications. 2006;(11):2018--2027. doi:10.1109/JSAC.2006.881633
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2005 | Journal Article | LibreCat-ID: 842
Ebert J-P, Hollos D, Karl H, Löbbers M. Does Multi-Hop Communication Reduce Electromagnetic Exposure? Comput J. 2005;(1):72--83. doi:10.1093/comjnl/bxh062
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2005 | Journal Article | LibreCat-ID: 843
Savoric M, Karl H, Schläger M, Poschwatta T, Wolisz A. Analysis and performance evaluation of the EFCM common congestion controller for TCP connections. Computer Networks. 2005;(2):269--294. doi:10.1016/j.comnet.2005.01.012
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2005 | Journal Article | LibreCat-ID: 844
Gross J, Valentin S, Karl H, Wolisz A. A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system. European Transactions on Telecommunications. 2005;(1):37--49. doi:10.1002/ett.1030
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2005 | Journal Article | LibreCat-ID: 845
Karl H, Lentsch T, Ritter H. Drahtlose Sensornetze. Praxis der Informationsverarbeitung und Kommunikation. 2005;(2):66--67. doi:10.1515/PIKO.2005.66
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2005 | Journal Article | LibreCat-ID: 846
Willig A, Karl H. Data Transport Reliability in Wireless Sensor Networks. A Survey of Issues and Solutions. Praxis der Informationsverarbeitung und Kommunikation. 2005;(2):86--92. doi:10.1515/PIKO.2005.86
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2005 | Journal Article | LibreCat-ID: 1378
Gross J, Valentin S, Karl H, Wolisz A. A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system. European Transactions on Telecommunications. 2005;16(1):37-49. doi:10.1002/ett.1030
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2004 | Journal Article | LibreCat-ID: 850
Gross J, Klaue J, Karl H, Wolisz A. Cross-layer optimization of OFDM transmission systems for MPEG-4 video streaming. Computer Communications. 2004;(11):1044--1055. doi:10.1016/j.comcom.2004.01.010
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2004 | Journal Article | LibreCat-ID: 851
Niebert N, Schieder A, Abramowicz H, et al. Ambient networks: An architecture for communication networks beyond 3G. IEEE Wireless Communications. 2004;(2):14--22. doi:10.1109/MWC.2004.1295733
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2004 | Journal Article | LibreCat-ID: 993
Klimin N, Enkelmann W, Karl H, Wolisz A. A hybrid approach for location-based service discovery in vehicular ad hoc networks. Proc of WIT. 2004.
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2004 | Journal Article | LibreCat-ID: 998
Mengesha S, Karl H, Wolisz A. Capacity increase of multi-hop cellular wlans exploiting data rate adaptation and frequency recycling. Proc of MedHocNet 2004. 2004.
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2004 | Journal Article | LibreCat-ID: 1017
Kubisch M, Karl H, Wolisz A. A MAC protocol for wireless sensor networks with multiple selectable, fixed-orientation antennas. Frequenz. 2004;(3-4):92--96. doi:/10.1.1.3.3185
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2003 | Journal Article | LibreCat-ID: 860
Savoric M, Karl H, Wolisz A. The TCP control block interdependence in fixed networks - new performance results. Computer Communications. 2003;(4):366--375. doi:10.1016/S0140-3664(02)00155-X
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2003 | Journal Article | LibreCat-ID: 861
Zirwas W, Habetha J, Karl H. Ziel-orientierter Entwurf von Multi-hop Medienzugriffsprotokollen. Praxis der Informationsverarbeitung und Kommunikation. 2003;(4):184--189. doi:10.1515/PIKO.2003.184
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2003 | Journal Article | LibreCat-ID: 989
Karl H. An overview of energy-efficiency techniques for mobile communication systems. Report of AG Mobikom WG7. 2003.
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2002 | Journal Article | LibreCat-ID: 1014
Ngo-Quynh T, Karl H, Wolisz A, Rebensburg K. New scheduling algorithm for providing proportional jitter in differentiated services network. Proceedings of IST mobile communication and wireless telecommunications summit, Thessaloniki, Greece. 2002.
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1998 | Journal Article | LibreCat-ID: 876
Karl H. Bridging the gap between distributed shared memory and message passing. Concurrency - Practice and Experience. 1998;(11-13):887--900. doi:10.1002/(SICI)1096-9128(199809/11)10:11/13<887::AID-CPE416>3.0.CO;2-0
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1998 | Journal Article | LibreCat-ID: 877
Baratloo A, Karaul M, Karl H, M. Kedem Z. An infrastructure for network computing with Java applets. Concurrency -- Practice and Experience. 1998;(11-13):1029--1041. doi:10.1002/(SICI)1096-9128(199809/11)10:11/13<1029::AID-CPE412>3.0.CO;2-U
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1998 | Journal Article | LibreCat-ID: 878
Karl H, Werner M, Küttner L. Experimental investigation of message latencies in the Totem protocol in the Presence of faults. IEEE Proceedings -- Software. 1998;(6):219--227. doi:10.1049/ip-sen:19982443
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1997 | Journal Article | LibreCat-ID: 1445
Baratloo A, Karaul M, Karl H, Kedem ZM. KnittingFactory: An Infrastructure for Distributed Web Applications. Technical Report. 1997.
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