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363 Publications
2007 | Conference Paper | LibreCat-ID: 1840
Woldegebreal, D. H., & Karl, H. (2007). Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay Channels. In 2007 4th International Symposium on Wireless Communication Systems. IEEE. https://doi.org/10.1109/iswcs.2007.4392437
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| DOI
2007 | Conference Paper | LibreCat-ID: 1842
Karl, H. (2007). Optimizing sleeping intervals in preamble sampling MAC for WSNs. Bern / Switzerland: Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference.
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2007 | Journal Article | LibreCat-ID: 830
Festag, A., Karl, H., & Wolisz, A. (2007). Investigation of multicast-based mobility support in all-IP cellular networks. Wireless Communications and Mobile Computing, (3), 319--339. https://doi.org/10.1002/wcm.328
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2007 | Conference Paper | LibreCat-ID: 831
van der Stok, P., Karl, H., De Ambroggi, F., Decotignie, J., Siegemund, F., Lokhorst, K., & Hellenschmidt, M. (2007). WASP - Wirelessly Accessible Sensor Populations: A Project Overview. In Constructing Ambient Intelligence - AmI 2007 Workshops Darmstadt, Germany, November 7-10, 2007 Revised Papers (pp. 426--429). https://doi.org/10.1007/978-3-540-85379-4_49
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2007 | Conference Paper | LibreCat-ID: 832
H. Woldegebreal, D., Valentin, S., & Karl, H. (2007). 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 (pp. 36--44). https://doi.org/10.1145/1298126.1298136
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2007 | Conference Paper | LibreCat-ID: 833
Valentin, S., von Malm, H., & Karl, H. (2007). Traffic-Aware Asymmetric Cooperation Diversity for Media Streaming in Wireless Networks. In Proceedings of the IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2007, 3-7 September 2007, Athens, Greece (pp. 1--6). https://doi.org/10.1109/PIMRC.2007.4394223
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2007 | Conference Paper | LibreCat-ID: 834
S. Lichte, H., Valentin, S., Eitzen, F., Stege, M., Unger, C., & Karl, H. (2007). Integrating multiuser dynamic OFDMA into IEEE 802.11a and prototyping it on a real-time software-defined radio testbed. 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 (pp. 1--9). https://doi.org/10.1109/TRIDENTCOM.2007.4444671
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2007 | Conference Paper | LibreCat-ID: 835
Valentin, S., & Karl, H. (2007). 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 (pp. 896--901). https://doi.org/10.1109/WCNC.2007.170
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2007 | Conference Paper | LibreCat-ID: 836
Marie Feeney, L., Cetin, B., Hollos, D., Kubisch, M., Mengesha, S., & Karl, H. (2007). 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 (pp. 201--212). https://doi.org/10.1007/978-3-540-72697-5_17
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2007 | Conference Paper | LibreCat-ID: 1015
Valentin, S., & Karl, H. (2007). Analyzing the effect of asymmetric mobility and channel configurations on the outage performance of coded cooperative systems. In Proc. of the European Wireless Conference (EW).
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2007 | Journal Article | LibreCat-ID: 1018
Valentin, S., Lichte, H. S., Karl, H., Simoens, S., Vivier, G., Vidal, J., & Agustin, A. (2007). Implementing cooperative wireless networks. Cognitive Wireless Networks, 155--178. https://doi.org/10.1007/978-1-4020-5979-7_8
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2006 | Report | LibreCat-ID: 2518
Valentin, S., von Malm, H., & Karl, H. (2006). Evaluating the GNU Software Radio platform for wireless testbeds.
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2006 | Conference Paper | LibreCat-ID: 2523
Valentin, S., Lichte, H. S., Karl, H., Vivier, G., Simoens, S., Vidal, J., … Aad, I. (2006). Cooperative wireless networking beyond store-and-forward: Perspectives for PHY and MAC design.
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2006 | Conference Paper | LibreCat-ID: 2526
Dannewitz, C., Berg, S., & Karl, H. (2006). An IEEE 802.21-based Universal Information Service . In Proc. of the Wireless World Research Forum Meeting .
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2006 | Journal Article | LibreCat-ID: 837
Hoene, C., Karl, H., & Wolisz, A. (2006). A perceptual quality model intended for adaptive VoIP applications. Int. J. Communication Systems, (3), 299--316. https://doi.org/10.1002/dac.755
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2006 | Journal Article | LibreCat-ID: 838
Gross, J., Geerdes, H.-}Florian, Karl, H., & Wolisz, A. (2006). Performance analysis of dynamic OFDMA systems with inband signaling. IEEE Journal on Selected Areas in Communications, (3), 427--436. https://doi.org/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. (2006). A Distributed End-to-End Reservation Protocol for IEEE 802.11-Based Wireless Mesh Networks. IEEE Journal on Selected Areas in Communications, (11), 2018--2027. https://doi.org/10.1109/JSAC.2006.881633
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2006 | Conference Paper | LibreCat-ID: 840
Mattern, F., Karl, H., & Römer, K. (2006). Wireless Sensor Networks. In K. R{\"{o}}mer, H. Karl, & F. Mattern (Eds.), Third European Workshop, {EWSN} 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings. https://doi.org/10.1007/11669463
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2005 | Conference Paper | LibreCat-ID: 1843
Aguiar, A., Wolisz, A., Lederer, H., & Karl, H. (2005). Channel-Adaptive Schedulers with State-of-the-Art Channel Predictors. In Proceedings of the 11th European Wireless Conference 2005.
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2005 | Book | LibreCat-ID: 841
Karl, H., & Willig, A. (2005). Protocols and architectures for wireless sensor networks.
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2005 | Journal Article | LibreCat-ID: 842
Ebert, J.-P., Hollos, D., Karl, H., & Löbbers, M. (2005). Does Multi-Hop Communication Reduce Electromagnetic Exposure? Comput. J., (1), 72--83. https://doi.org/10.1093/comjnl/bxh062
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2005 | Journal Article | LibreCat-ID: 843
Savoric, M., Karl, H., Schläger, M., Poschwatta, T., & Wolisz, A. (2005). Analysis and performance evaluation of the EFCM common congestion controller for TCP connections. Computer Networks, (2), 269--294. https://doi.org/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. (2005). A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system. European Transactions on Telecommunications, (1), 37--49. https://doi.org/10.1002/ett.1030
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2005 | Journal Article | LibreCat-ID: 845
Karl, H., Lentsch, T., & Ritter, H. (2005). Drahtlose Sensornetze. Praxis Der Informationsverarbeitung Und Kommunikation, (2), 66--67. https://doi.org/10.1515/PIKO.2005.66
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2005 | Journal Article | LibreCat-ID: 846
Willig, A., & Karl, H. (2005). Data Transport Reliability in Wireless Sensor Networks. A Survey of Issues and Solutions. Praxis Der Informationsverarbeitung Und Kommunikation, (2), 86--92. https://doi.org/10.1515/PIKO.2005.86
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2005 | Conference Paper | LibreCat-ID: 847
Kopke, A., Karl, H., & Lobbers, M. (2005). Using energy where it counts: protecting important messages in the link layer. In Wireless Sensor Networks, Second European Workshop, EWSN 2005, Istanbul, Turkey, January 31 - February 2, 2005, Proceedings (pp. 226--235). https://doi.org/10.1109/EWSN.2005.1462015
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2005 | Book Chapter | LibreCat-ID: 848
Karl, H. (2005). Ad Hoc Networks. In The Industrial Information Technology Handbook (pp. 1--16).
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2005 | Conference Paper | LibreCat-ID: 1013
Valentin, S., Gross, J., Karl, H., & Wolisz, A. (2005). 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.
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2005 | Journal Article | LibreCat-ID: 1378
Gross, J., Valentin, S., Karl, H., & Wolisz, A. (2005). A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system. European Transactions on Telecommunications, 16(1), 37–49. https://doi.org/10.1002/ett.1030
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2004 | Conference Paper | LibreCat-ID: 2529
Köpke, A., Karl, H., & Wolisz, A. (2004). Consensus in WSN – Identifying critical protocol mechanisms. In GI / ITG Fachgespräche Drahtlose Sensornetzwerke.
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2004 | Conference Paper | LibreCat-ID: 1911
Aguiar, A., Karl, H., & Wolisz, A. (2004). Channel Adaptive Techniques in the Presence of Channel Prediction Inaccuracy. In Proceedings of European Wireless 2004, Barcelona / Spain .
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2004 | Journal Article | LibreCat-ID: 850
Gross, J., Klaue, J., Karl, H., & Wolisz, A. (2004). Cross-layer optimization of OFDM transmission systems for MPEG-4 video streaming. Computer Communications, (11), 1044--1055. https://doi.org/10.1016/j.comcom.2004.01.010
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2004 | Journal Article | LibreCat-ID: 851
Niebert, N., Schieder, A., Abramowicz, H., Malmgren, G., Sachs, J., Horn, U., … Karl, H. (2004). Ambient networks: An architecture for communication networks beyond 3G. IEEE Wireless Communications, (2), 14--22. https://doi.org/10.1109/MWC.2004.1295733
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2004 | Conference Paper | LibreCat-ID: 852
Handziski, V., Köpke, A., Karl, H., Frank, C., & Drytkiewicz, W. (2004). Improving the Energy Efficiency of Directed Diffusion Using Passive Clustering. In Wireless Sensor Networks, First European Workshop, EWSN 2004, Berlin, Germany, January 19-21, 2004, Proceedings (pp. 172--187). https://doi.org/10.1007/978-3-540-24606-0_12
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2004 | Conference Paper | LibreCat-ID: 853
Typpö, V., Eisl, J., Höller, J., Agüero, R., & Karl, H. (2004). Research Challenges in Mobility and Moving Networks: An Ambient Networks View. 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 (pp. 145--155). https://doi.org/10.1007/0-387-24043-8_15
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2004 | Conference Paper | LibreCat-ID: 854
Frank, C., & Karl, H. (2004). Consistency challenges of service discovery in mobile ad hoc networks. 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 (pp. 105--114). https://doi.org/10.1145/1023663.1023684
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2004 | Conference Paper | LibreCat-ID: 855
Marie Feeney, L., Hollos, D., Kubisch, M., Mengesha, S., & Karl, H. (2004). A Geometric Derivation of the Probability of Finding a Relay in Multi-rate Networks. 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 (pp. 1312--1317). https://doi.org/10.1007/978-3-540-24693-0_112
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2004 | Conference Paper | LibreCat-ID: 856
Hollos, D., Karl, H., & Wolisz, A. (2004). Regionalizing global optimization algorithms to improve the operation of large ad hoc networks. In 2004 IEEE Wireless Communications and Networking Conference, WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004 (pp. 819--824). https://doi.org/10.1109/WCNC.2004.1311292
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2004 | Conference Paper | LibreCat-ID: 857
Raguin, D., Kubisch, M., Karl, H., & Wolisz, A. (2004). Queue-driven cut-through medium access in wireless ad hoc networks. In 2004 IEEE Wireless Communications and Networking Conference , WCNC 2004, Atlanta, Georgia, USA, 21-25 March 2004 (pp. 1909--1914). https://doi.org/10.1109/WCNC.2004.1311845
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2004 | Book Chapter | LibreCat-ID: 858
Karl, H. (2004). Data Transmission in Mobile Communication Systems. In Location-Based Services (pp. 207--244).
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2004 | Conference (Editor) | LibreCat-ID: 859
Karl, H., Willig, A., & Wolisz, A. (Eds.). (2004). Wireless Sensor Networks. First European Workshop, {EWSN} 2004, Berlin, Germany, January 19-21, 2004, Proceedings. https://doi.org/10.1007/b94854
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2004 | Conference Paper | LibreCat-ID: 988
Niebert, N., Flinck, H., Hancock, R., Karl, H., & Prehofer, C. (2004). Ambient Networks--Research for Communication Networks Beyond 3G. In 13th IST Mobile and Wireless Communications-Summit 2004.
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2004 | Conference Paper | LibreCat-ID: 992
Gross, J., Paoluzzi, I., Karl, H., & Wolisz, A. (2004). Throughput study for a dynamic OFDM-FDMA system with inband signaling. In Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th (pp. 1787--1791).
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2004 | Journal Article | LibreCat-ID: 993
Klimin, N., Enkelmann, W., Karl, H., & Wolisz, A. (2004). A hybrid approach for location-based service discovery in vehicular ad hoc networks. Proc. of WIT.
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2004 | Conference Paper | LibreCat-ID: 997
Carlson, E., Karl, H., Wolisz, A., & Prehofer, C. (2004). Distributed allocation of time slots for real-time traffic in a wireless multi-hop network. In Proc. European Wireless. Barcelona/Spain.
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2004 | Journal Article | LibreCat-ID: 998
Mengesha, S., Karl, H., & Wolisz, A. (2004). Capacity increase of multi-hop cellular wlans exploiting data rate adaptation and frequency recycling. Proc. of MedHocNet 2004.
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2004 | Conference Paper | LibreCat-ID: 1002
Carlson, E., Bettstetter, C., Karl, H., Prehofer, C., & Wolisz, A. (2004). Distributed maintenance of resource reservation paths in multihop 802.11 networks. In Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th (pp. 2994--2998).
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2004 | Conference Paper | LibreCat-ID: 1006
Gross, J., Karl, H., & Wolisz, A. (2004). On the effect of inband signaling and realistic channel knowledge on dynamic OFDM-FDMA systems. In European Wireless 2004.
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2004 | Journal Article | LibreCat-ID: 1017
Kubisch, M., Karl, H., & Wolisz, A. (2004). A MAC protocol for wireless sensor networks with multiple selectable, fixed-orientation antennas. Frequenz, (3–4), 92--96. https://doi.org//10.1.1.3.3185
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| DOI
2004 | Conference Paper | LibreCat-ID: 1019
Gross, J., Karl, H., & Wolisz, A. (2004). Throughput optimization of dynamic OFDM-FDMA systems with inband signaling. In 2nd International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks 2004 (WiOpt 2004).
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