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296 Publications


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 | Conference Paper | LibreCat-ID: 835
Valentin S, Karl H. Effect of User Mobility in Coded Cooperative Systems with Joint Partner and Cooperation Level Selection. In: IEEE Wireless Communications and Networking Conference, WCNC 2007, Hong Kong, China, 11-15 March, 2007. ; 2007:896--901. doi:10.1109/WCNC.2007.170
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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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2007 | Conference Paper | LibreCat-ID: 1842
Karl H. Optimizing sleeping intervals in preamble sampling MAC for WSNs. In: Bern / Switzerland: Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference; 2007.
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2007 | Conference Paper | LibreCat-ID: 831
van der Stok P, Karl H, De Ambroggi F, et al. WASP - Wirelessly Accessible Sensor Populations: A Project Overview. In: Constructing Ambient Intelligence - AmI 2007 Workshops Darmstadt, Germany, November 7-10, 2007 Revised Papers. ; 2007:426--429. doi:10.1007/978-3-540-85379-4_49
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2007 | Conference Paper | LibreCat-ID: 836
Marie Feeney L, Cetin B, Hollos D, Kubisch M, Mengesha S, Karl H. Multi-rate Relaying for Performance Improvement in IEEE 802.11 WLANs. In: Wired/Wireless Internet Communications, 5th International Conference, WWIC 2007, Coimbra, Portugal, May 23-25, 2007, Proceedings. ; 2007:201--212. doi:10.1007/978-3-540-72697-5_17
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2007 | Conference Paper | LibreCat-ID: 832
H. Woldegebreal D, Valentin S, Karl H. Outage probability analysis of cooperative transmission protocols without and with network coding: inter-user channels based comparison. In: Proceedings of the 10th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2007, Chania, Crete Island, Greece, October 22-26, 2007. ; 2007:36--44. doi:10.1145/1298126.1298136
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2006 | Report | LibreCat-ID: 2518
Valentin S, von Malm H, Karl H. Evaluating the GNU Software Radio Platform for Wireless Testbeds.; 2006.
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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 | Conference Paper | LibreCat-ID: 840
Mattern F, Karl H, Römer K. Wireless Sensor Networks. In: R{\"{o}}mer K, Karl H, Mattern F, eds. Third European Workshop, {EWSN} 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings. Lecture Notes in Computer Science. ; 2006. doi:10.1007/11669463
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2006 | Conference Paper | LibreCat-ID: 2526
Dannewitz C, Berg S, Karl H. An IEEE 802.21-based Universal Information Service . In: Proc. of the Wireless World Research Forum Meeting . ; 2006.
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2006 | Conference Paper | LibreCat-ID: 2523
Valentin S, Lichte HS, Karl H, et al. Cooperative wireless networking beyond store-and-forward: Perspectives for PHY and MAC design. In: ; 2006.
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2006 | Conference (Editor) | LibreCat-ID: 17417
Rammig F-J, Dangelmaier W, Karl H, Mertsching B, Meyer auf der Heide F, Trächtler A, eds. Self-Coordinating Systems: The Next Challenge in Research on Distributed Systems. Paderborn: Verlagsschriftenreihe des Heinz Nixdorf Instituts; 2006.
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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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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 | Book | LibreCat-ID: 841
Karl H, Willig A. Protocols and Architectures for Wireless Sensor Networks.; 2005.
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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: 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 | Conference Paper | LibreCat-ID: 1013
Valentin S, Gross J, Karl H, Wolisz A. Adaptive scheduling for heterogeneous traffic flows in cellular wireless OFDM-FDMA systems. In: 10th IFIP International Conference on Personal Wireless Communications/PWC’05, Comar, France, 2005. ; 2005.
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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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