TY - CONF AU - Valentin, Stefan AU - Freitag, Thomas AU - Karl, Holger ID - 823 T2 - Proceedings of IEEE International Conference on Communications, ICC 2008, Beijing, China, 19-23 May 2008 TI - Integrating Multiuser Dynamic OFDMA into IEEE 802.11 WLANs - LLC/MAC Extensions and System Performance ER - TY - CONF AU - S. Lichte, Hermann AU - Valentin, Stefan AU - Karl, Holger AU - Aad, Imad AU - Loyola, Luis AU - Widmer, J{\ ID - 824 T2 - INFOCOM 2008. 27th IEEE International Conference on Computer Communications, Joint Conference of the IEEE Computer and Communications Societies, 13-18 April 2008, Phoenix, AZ, {USA} TI - Design and Evaluation of a Routing-Informed Cooperative MAC Protocol for Ad Hoc Networks ER - TY - CONF AU - Valentin, Stefan AU - S. Lichte, Hermann AU - Karl, Holger AU - Aad, Imad AU - Loyola, Luis AU - Widmer, J. ID - 825 T2 - Proceedings of the 11th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2008, Vancouver, British Columbia, Canada, October 27-31, 2008 TI - Opportunistic relaying vs. selective cooperation: analyzing the occurrence-conditioned outage capacity ER - TY - CONF AU - Valentin, Stefan AU - Volkhausen, Tobias AU - Atay Onat, Furuzan AU - Yanikomeroglu, Halim AU - Karl, Holger ID - 826 T2 - Proceedings of the IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008, 15-18 September 2008, Cannes, French Riviera, France TI - Decoding-based channel estimation for selective cooperation diversity protocols ER - TY - CONF AU - Valentin, Stefan AU - S. Lichte, Hermann AU - Warneke, Daniel AU - Biermann, Thorsten AU - Funke, Rafael AU - Karl, Holger ID - 827 T2 - Proceedings of the 68th IEEE Vehicular Technology Conference, VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada TI - Mobile Cooperative WLANs - MAC and Transceiver Design, Prototyping, and Field Measurements ER - TY - CONF AU - H. Woldegebreal, Dereje AU - Valentin, Stefan AU - Karl, Holger ID - 828 T2 - Proceedings of the 68th IEEE Vehicular Technology Conference, VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada TI - Incremental Network Coding in Cooperative Transmission Wireless Networks ER - TY - CONF AU - Platz, Daniel AU - Woldegebreal, Dereje H AU - Karl, Holger ID - 1003 T2 - Spread Spectrum Techniques and Applications, 2008 IEEE 10th International Symposium on TI - Random network coding in wireless sensor networks: Energy efficiency via cross-layer approach ER - TY - CONF AU - Valentin, Stefan AU - Volkhausen, Tobias AU - Onat, Furuzan Atay AU - Yanikomeroglu, Halim AU - Karl, Holger ID - 1007 T2 - Communications Workshops, 2008. ICC Workshops' 08. IEEE International Conference on TI - Enabling partial forwarding by decoding-based one and two-stage selective cooperation ER - TY - GEN AU - Eitzen, Falk AU - Valentin, Stefan AU - Gossens, Kai AU - Karl, Holger AU - Rolfes, Oliver ID - 2515 TI - Experimental evaluation of IEEE 802.11a-based WLANs for medium range communication ER - TY - CONF AU - Woldegebreal, Dereje H. AU - Karl, Holger ID - 1840 SN - 9781424409785 T2 - 2007 4th International Symposium on Wireless Communication Systems TI - Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay Channels ER - TY - CONF AU - Karl, Holger ID - 1842 TI - Optimizing sleeping intervals in preamble sampling MAC for WSNs ER - TY - JOUR AU - Festag, Andreas AU - Karl, Holger AU - Wolisz, Adam ID - 830 IS - 3 JF - Wireless Communications and Mobile Computing TI - Investigation of multicast-based mobility support in all-IP cellular networks ER - TY - CONF AU - van der Stok, Peter AU - Karl, Holger AU - De Ambroggi, Fabio AU - Decotignie, JeanDominique AU - Siegemund, Frank AU - Lokhorst, Kees AU - Hellenschmidt, Michael ID - 831 T2 - Constructing Ambient Intelligence - AmI 2007 Workshops Darmstadt, Germany, November 7-10, 2007 Revised Papers TI - WASP - Wirelessly Accessible Sensor Populations: A Project Overview ER - TY - CONF AU - H. Woldegebreal, Dereje AU - Valentin, Stefan AU - Karl, Holger ID - 832 T2 - 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 TI - Outage probability analysis of cooperative transmission protocols without and with network coding: inter-user channels based comparison ER - TY - CONF AU - Valentin, Stefan AU - von Malm, Holger AU - Karl, Holger ID - 833 T2 - Proceedings of the IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2007, 3-7 September 2007, Athens, Greece TI - Traffic-Aware Asymmetric Cooperation Diversity for Media Streaming in Wireless Networks ER - TY - CONF AU - S. Lichte, Hermann AU - Valentin, Stefan AU - Eitzen, Falk AU - Stege, Matthias AU - Unger, Carsten AU - Karl, Holger ID - 834 T2 - 3rd International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities, TridentCom 2007, Orlando, Florida, USA, May 21-23 2007 TI - Integrating multiuser dynamic OFDMA into IEEE 802.11a and prototyping it on a real-time software-defined radio testbed ER - TY - CONF AU - Valentin, Stefan AU - Karl, Holger ID - 835 T2 - IEEE Wireless Communications and Networking Conference, WCNC 2007, Hong Kong, China, 11-15 March, 2007 TI - Effect of User Mobility in Coded Cooperative Systems with Joint Partner and Cooperation Level Selection ER - TY - CONF AU - Marie Feeney, Laura AU - Cetin, Bilge AU - Hollos, Daniel AU - Kubisch, Martin AU - Mengesha, Seble AU - Karl, Holger ID - 836 T2 - Wired/Wireless Internet Communications, 5th International Conference, WWIC 2007, Coimbra, Portugal, May 23-25, 2007, Proceedings TI - Multi-rate Relaying for Performance Improvement in IEEE 802.11 WLANs ER - TY - CONF AU - Valentin, Stefan AU - Karl, Holger ID - 1015 T2 - Proc. of the European Wireless Conference (EW) TI - Analyzing the effect of asymmetric mobility and channel configurations on the outage performance of coded cooperative systems ER - TY - JOUR AU - Valentin, Stefan AU - Lichte, Hermann S AU - Karl, Holger AU - Simoens, Sebastien AU - Vivier, Guillaume AU - Vidal, Josep AU - Agustin, Adrian ID - 1018 JF - Cognitive Wireless Networks TI - Implementing cooperative wireless networks ER - TY - GEN AU - Valentin, Stefan AU - von Malm, Holger AU - Karl, Holger ID - 2518 TI - Evaluating the GNU Software Radio platform for wireless testbeds ER - TY - CONF AU - Valentin, Stefan AU - Lichte, Herman S. AU - Karl, Holger AU - Vivier, Guillaume AU - Simoens, Sebastien AU - Vidal, Josep AU - Agustin, Adrian AU - Aad, Imad ID - 2523 TI - Cooperative wireless networking beyond store-and-forward: Perspectives for PHY and MAC design ER - TY - CONF AU - Dannewitz, Christian AU - Berg, Stefan AU - Karl, Holger ID - 2526 T2 - Proc. of the Wireless World Research Forum Meeting TI - An IEEE 802.21-based Universal Information Service ER - TY - JOUR AU - Hoene, Christian AU - Karl, Holger AU - Wolisz, Adam ID - 837 IS - 3 JF - Int. J. Communication Systems TI - A perceptual quality model intended for adaptive VoIP applications ER - TY - JOUR AU - Gross, James AU - Geerdes, Hans{-}Florian AU - Karl, Holger AU - Wolisz, Adam ID - 838 IS - 3 JF - IEEE Journal on Selected Areas in Communications TI - Performance analysis of dynamic OFDMA systems with inband signaling ER - TY - JOUR AU - Carlson, E. AU - Prehofer, Christian AU - Bettstetter, Christian AU - Karl, Holger AU - Wolisz, Adam ID - 839 IS - 11 JF - IEEE Journal on Selected Areas in Communications TI - A Distributed End-to-End Reservation Protocol for IEEE 802.11-Based Wireless Mesh Networks ER - TY - CONF AU - Mattern, Friedemann AU - Karl, Holger AU - Römer, Kay ED - R{\"{o}}mer, Kay ED - Karl, Holger ED - Mattern, Friedemann ID - 840 SN - 3-540-32158-6 T2 - Third European Workshop, {EWSN} 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings TI - Wireless Sensor Networks ER - TY - CONF AU - Aguiar, A. AU - Wolisz, A. AU - Lederer, H. AU - Karl, Holger ID - 1843 T2 - Proceedings of the 11th European Wireless Conference 2005 TI - Channel-Adaptive Schedulers with State-of-the-Art Channel Predictors ER - TY - BOOK AU - Karl, Holger AU - Willig, Andreas ID - 841 SN - 978-0-470-09510-2 TI - Protocols and architectures for wireless sensor networks ER - TY - JOUR AU - Ebert, Jean-Pierre AU - Hollos, Daniel AU - Karl, Holger AU - Löbbers, Marc ID - 842 IS - 1 JF - Comput. J. TI - Does Multi-Hop Communication Reduce Electromagnetic Exposure? ER - TY - JOUR AU - Savoric, Michael AU - Karl, Holger AU - Schläger, Morten AU - Poschwatta, Tobias AU - Wolisz, Adam ID - 843 IS - 2 JF - Computer Networks TI - Analysis and performance evaluation of the EFCM common congestion controller for TCP connections ER - TY - JOUR AU - Gross, James AU - Valentin, Stefan AU - Karl, Holger AU - Wolisz, Adam ID - 844 IS - 1 JF - European Transactions on Telecommunications TI - A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system ER - TY - JOUR AU - Karl, Holger AU - Lentsch, Thomas AU - Ritter, Hartmut ID - 845 IS - 2 JF - Praxis der Informationsverarbeitung und Kommunikation TI - Drahtlose Sensornetze ER - TY - JOUR AU - Willig, Andreas AU - Karl, Holger ID - 846 IS - 2 JF - Praxis der Informationsverarbeitung und Kommunikation TI - Data Transport Reliability in Wireless Sensor Networks. A Survey of Issues and Solutions ER - TY - CONF AU - Kopke, Andreas AU - Karl, Holger AU - Lobbers, Marc ID - 847 T2 - Wireless Sensor Networks, Second European Workshop, EWSN 2005, Istanbul, Turkey, January 31 - February 2, 2005, Proceedings TI - Using energy where it counts: protecting important messages in the link layer ER - TY - CHAP AU - Karl, Holger ID - 848 T2 - The Industrial Information Technology Handbook TI - Ad Hoc Networks ER - TY - CONF AU - Valentin, Stefan AU - Gross, James AU - Karl, Holger AU - Wolisz, Adam ID - 1013 T2 - 10th IFIP International Conference on Personal Wireless Communications/PWC'05, Comar, France, 2005 TI - Adaptive scheduling for heterogeneous traffic flows in cellular wireless OFDM-FDMA systems ER - TY - JOUR AU - Gross, James AU - Valentin, Stefan AU - Karl, Holger AU - Wolisz, Adam ID - 1378 IS - 1 JF - European Transactions on Telecommunications SN - 1124-318X TI - A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system VL - 16 ER - TY - CONF AU - Köpke, A. AU - Karl, Holger AU - Wolisz, A. ID - 2529 T2 - GI / ITG Fachgespräche Drahtlose Sensornetzwerke TI - Consensus in WSN – Identifying critical protocol mechanisms ER - TY - CONF AU - Aguiar, Ana AU - Karl, Holger AU - Wolisz, Adam ID - 1911 T2 - Proceedings of European Wireless 2004, Barcelona / Spain TI - Channel Adaptive Techniques in the Presence of Channel Prediction Inaccuracy ER - TY - JOUR AU - Gross, James AU - Klaue, Jirka AU - Karl, Holger AU - Wolisz, Adam ID - 850 IS - 11 JF - Computer Communications TI - Cross-layer optimization of OFDM transmission systems for MPEG-4 video streaming ER - TY - JOUR AU - Niebert, Norbert AU - Schieder, Andreas AU - Abramowicz, Henrik AU - Malmgren, G. AU - Sachs, Joachim AU - Horn, Uwe AU - Prehofer, Christian AU - Karl, Holger ID - 851 IS - 2 JF - IEEE Wireless Communications TI - Ambient networks: An architecture for communication networks beyond 3G ER - TY - CONF AU - Handziski, Vlado AU - Köpke, Andreas AU - Karl, Holger AU - Frank, Christian AU - Drytkiewicz, Witold ID - 852 T2 - Wireless Sensor Networks, First European Workshop, EWSN 2004, Berlin, Germany, January 19-21, 2004, Proceedings TI - Improving the Energy Efficiency of Directed Diffusion Using Passive Clustering ER - TY - CONF AU - Typpö, Ville AU - Eisl, Jochen AU - Höller, Jan AU - Agüero, Ramon AU - Karl, Holger ID - 853 T2 - Broadband Satellite Comunication Systems and the Challenges of Mobility - IFIP TC6 Workshops on Broadband Satellite Communication Systems and Challenges of Mobility, World Computer Congress, August 22-27, 2004, Toulouse, France TI - Research Challenges in Mobility and Moving Networks: An Ambient Networks View ER - TY - CONF AU - Frank, Christian AU - Karl, Holger ID - 854 T2 - Proceedings of the 7th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2004, Venice, Italy, October 4-6, 2004 TI - Consistency challenges of service discovery in mobile ad hoc networks ER - TY - CONF AU - Marie Feeney, Laura AU - Hollos, Daniel AU - Kubisch, Martin AU - Mengesha, Seble AU - Karl, Holger ID - 855 T2 - NETWORKING 2004, Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication, Third International IFIP-TC6 Networking Conference, Athens, Greece, May 9-14, 2004, Proceedings TI - A Geometric Derivation of the Probability of Finding a Relay in Multi-rate Networks ER - TY - CONF AU - Hollos, Daniel AU - Karl, Holger AU - Wolisz, Adam ID - 856 T2 - 2004 IEEE Wireless Communications and Networking Conference, WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004 TI - Regionalizing global optimization algorithms to improve the operation of large ad hoc networks ER - TY - CONF AU - Raguin, David AU - Kubisch, Martin AU - Karl, Holger AU - Wolisz, Adam ID - 857 T2 - 2004 IEEE Wireless Communications and Networking Conference , WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004 TI - Queue-driven cut-through medium access in wireless ad hoc networks ER - TY - CHAP AU - Karl, Holger ID - 858 T2 - Location-Based Services TI - Data Transmission in Mobile Communication Systems ER - TY - GEN ED - Karl, Holger ED - Willig, Andreas ED - Wolisz, Adam ID - 859 SN - 3-540-20825-9 TI - Wireless Sensor Networks ER -