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250 Publications
2007 | Conference Paper | LibreCat-ID: 832
Outage probability analysis of cooperative transmission protocols without and with network coding: inter-user channels based comparison
D. H. Woldegebreal, S. Valentin, H. Karl, 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, pp. 36--44.
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D. H. Woldegebreal, S. Valentin, H. Karl, 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, pp. 36--44.
2007 | Conference Paper | LibreCat-ID: 833
Traffic-Aware Asymmetric Cooperation Diversity for Media Streaming in Wireless Networks
S. Valentin, H. von Malm, H. Karl, in: Proceedings of the IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2007, 3-7 September 2007, Athens, Greece, 2007, pp. 1--6.
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S. Valentin, H. von Malm, H. Karl, in: Proceedings of the IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2007, 3-7 September 2007, Athens, Greece, 2007, pp. 1--6.
2007 | Conference Paper | LibreCat-ID: 834
Integrating multiuser dynamic OFDMA into IEEE 802.11a and prototyping it on a real-time software-defined radio testbed
H. S. Lichte, S. Valentin, F. Eitzen, M. Stege, C. Unger, H. Karl, in: 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, 2007, pp. 1--9.
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H. S. Lichte, S. Valentin, F. Eitzen, M. Stege, C. Unger, H. Karl, in: 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, 2007, pp. 1--9.
2007 | Conference Paper | LibreCat-ID: 835
Effect of User Mobility in Coded Cooperative Systems with Joint Partner and Cooperation Level Selection
S. Valentin, H. Karl, in: IEEE Wireless Communications and Networking Conference, WCNC 2007, Hong Kong, China, 11-15 March, 2007, 2007, pp. 896--901.
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S. Valentin, H. Karl, in: IEEE Wireless Communications and Networking Conference, WCNC 2007, Hong Kong, China, 11-15 March, 2007, 2007, pp. 896--901.
2007 | Conference Paper | LibreCat-ID: 836
Multi-rate Relaying for Performance Improvement in IEEE 802.11 WLANs
L. Marie Feeney, B. Cetin, D. Hollos, M. Kubisch, S. Mengesha, H. Karl, in: Wired/Wireless Internet Communications, 5th International Conference, WWIC 2007, Coimbra, Portugal, May 23-25, 2007, Proceedings, 2007, pp. 201--212.
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L. Marie Feeney, B. Cetin, D. Hollos, M. Kubisch, S. Mengesha, H. Karl, in: Wired/Wireless Internet Communications, 5th International Conference, WWIC 2007, Coimbra, Portugal, May 23-25, 2007, Proceedings, 2007, pp. 201--212.
2007 | Conference Paper | LibreCat-ID: 1015
Analyzing the effect of asymmetric mobility and channel configurations on the outage performance of coded cooperative systems
S. Valentin, H. Karl, in: Proc. of the European Wireless Conference (EW), 2007.
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S. Valentin, H. Karl, in: Proc. of the European Wireless Conference (EW), 2007.
2006 | Conference Paper | LibreCat-ID: 2523
Cooperative wireless networking beyond store-and-forward: Perspectives for PHY and MAC design
S. Valentin, H.S. Lichte, H. Karl, G. Vivier, S. Simoens, J. Vidal, A. Agustin, I. Aad, in: 2006.
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S. Valentin, H.S. Lichte, H. Karl, G. Vivier, S. Simoens, J. Vidal, A. Agustin, I. Aad, in: 2006.
2006 | Conference Paper | LibreCat-ID: 2526
An IEEE 802.21-based Universal Information Service
C. Dannewitz, S. Berg, H. Karl, in: Proc. of the Wireless World Research Forum Meeting , 2006.
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C. Dannewitz, S. Berg, H. Karl, in: Proc. of the Wireless World Research Forum Meeting , 2006.
2006 | Conference Paper | LibreCat-ID: 840
Wireless Sensor Networks
F. Mattern, H. Karl, K. Römer, in: K. R{\"{o}}mer, H. Karl, F. Mattern (Eds.), Third European Workshop, {EWSN} 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings, 2006.
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F. Mattern, H. Karl, K. Römer, in: K. R{\"{o}}mer, H. Karl, F. Mattern (Eds.), Third European Workshop, {EWSN} 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings, 2006.
2005 | Conference Paper | LibreCat-ID: 1843
Channel-Adaptive Schedulers with State-of-the-Art Channel Predictors
A. Aguiar, A. Wolisz, H. Lederer, H. Karl, in: Proceedings of the 11th European Wireless Conference 2005, 2005.
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A. Aguiar, A. Wolisz, H. Lederer, H. Karl, in: Proceedings of the 11th European Wireless Conference 2005, 2005.
2005 | Conference Paper | LibreCat-ID: 847
Using energy where it counts: protecting important messages in the link layer
A. Kopke, H. Karl, M. Lobbers, in: Wireless Sensor Networks, Second European Workshop, EWSN 2005, Istanbul, Turkey, January 31 - February 2, 2005, Proceedings, 2005, pp. 226--235.
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A. Kopke, H. Karl, M. Lobbers, in: Wireless Sensor Networks, Second European Workshop, EWSN 2005, Istanbul, Turkey, January 31 - February 2, 2005, Proceedings, 2005, pp. 226--235.
2005 | Conference Paper | LibreCat-ID: 1013
Adaptive scheduling for heterogeneous traffic flows in cellular wireless OFDM-FDMA systems
S. Valentin, J. Gross, H. Karl, A. Wolisz, in: 10th IFIP International Conference on Personal Wireless Communications/PWC’05, Comar, France, 2005, 2005.
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S. Valentin, J. Gross, H. Karl, A. Wolisz, in: 10th IFIP International Conference on Personal Wireless Communications/PWC’05, Comar, France, 2005, 2005.
2004 | Conference Paper | LibreCat-ID: 2529
Consensus in WSN – Identifying critical protocol mechanisms
A. Köpke, H. Karl, A. Wolisz, in: GI / ITG Fachgespräche Drahtlose Sensornetzwerke, 2004.
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A. Köpke, H. Karl, A. Wolisz, in: GI / ITG Fachgespräche Drahtlose Sensornetzwerke, 2004.
2004 | Conference Paper | LibreCat-ID: 1911
Channel Adaptive Techniques in the Presence of Channel Prediction Inaccuracy
A. Aguiar, H. Karl, A. Wolisz, in: Proceedings of European Wireless 2004, Barcelona / Spain , 2004.
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A. Aguiar, H. Karl, A. Wolisz, in: Proceedings of European Wireless 2004, Barcelona / Spain , 2004.
2004 | Conference Paper | LibreCat-ID: 852
Improving the Energy Efficiency of Directed Diffusion Using Passive Clustering
V. Handziski, A. Köpke, H. Karl, C. Frank, W. Drytkiewicz, in: Wireless Sensor Networks, First European Workshop, EWSN 2004, Berlin, Germany, January 19-21, 2004, Proceedings, 2004, pp. 172--187.
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V. Handziski, A. Köpke, H. Karl, C. Frank, W. Drytkiewicz, in: Wireless Sensor Networks, First European Workshop, EWSN 2004, Berlin, Germany, January 19-21, 2004, Proceedings, 2004, pp. 172--187.
2004 | Conference Paper | LibreCat-ID: 853
Research Challenges in Mobility and Moving Networks: An Ambient Networks View
V. Typpö, J. Eisl, J. Höller, R. Agüero, H. Karl, in: 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, 2004, pp. 145--155.
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V. Typpö, J. Eisl, J. Höller, R. Agüero, H. Karl, in: 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, 2004, pp. 145--155.
2004 | Conference Paper | LibreCat-ID: 854
Consistency challenges of service discovery in mobile ad hoc networks
C. Frank, H. Karl, in: Proceedings of the 7th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2004, Venice, Italy, October 4-6, 2004, 2004, pp. 105--114.
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C. Frank, H. Karl, in: Proceedings of the 7th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2004, Venice, Italy, October 4-6, 2004, 2004, pp. 105--114.
2004 | Conference Paper | LibreCat-ID: 855
A Geometric Derivation of the Probability of Finding a Relay in Multi-rate Networks
L. Marie Feeney, D. Hollos, M. Kubisch, S. Mengesha, H. Karl, in: 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, 2004, pp. 1312--1317.
LibreCat
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L. Marie Feeney, D. Hollos, M. Kubisch, S. Mengesha, H. Karl, in: 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, 2004, pp. 1312--1317.
2004 | Conference Paper | LibreCat-ID: 856
Regionalizing global optimization algorithms to improve the operation of large ad hoc networks
D. Hollos, H. Karl, A. Wolisz, in: 2004 IEEE Wireless Communications and Networking Conference, WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004, 2004, pp. 819--824.
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D. Hollos, H. Karl, A. Wolisz, in: 2004 IEEE Wireless Communications and Networking Conference, WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004, 2004, pp. 819--824.
2004 | Conference Paper | LibreCat-ID: 857
Queue-driven cut-through medium access in wireless ad hoc networks
D. Raguin, M. Kubisch, H. Karl, A. Wolisz, in: 2004 IEEE Wireless Communications and Networking Conference , WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004, 2004, pp. 1909--1914.
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D. Raguin, M. Kubisch, H. Karl, A. Wolisz, in: 2004 IEEE Wireless Communications and Networking Conference , WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004, 2004, pp. 1909--1914.