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363 Publications
2004 | Conference Paper | LibreCat-ID: 1911
Aguiar A, Karl H, Wolisz A. Channel Adaptive Techniques in the Presence of Channel Prediction Inaccuracy. In: Proceedings of European Wireless 2004, Barcelona / Spain . ; 2004.
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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 | Conference Paper | LibreCat-ID: 852
Handziski V, Köpke A, Karl H, Frank C, Drytkiewicz W. 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. ; 2004:172--187. doi: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. 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. ; 2004:145--155. doi:10.1007/0-387-24043-8_15
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2004 | Conference Paper | LibreCat-ID: 854
Frank C, Karl H. 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. ; 2004:105--114. doi: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. 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. ; 2004:1312--1317. doi:10.1007/978-3-540-24693-0_112
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2004 | Conference Paper | LibreCat-ID: 856
Hollos D, Karl H, Wolisz A. 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. ; 2004:819--824. doi:10.1109/WCNC.2004.1311292
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2004 | Conference Paper | LibreCat-ID: 857
Raguin D, Kubisch M, Karl H, Wolisz A. 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. ; 2004:1909--1914. doi:10.1109/WCNC.2004.1311845
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2004 | Book Chapter | LibreCat-ID: 858
Karl H. Data Transmission in Mobile Communication Systems. In: Location-Based Services. ; 2004:207--244.
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2004 | Conference (Editor) | LibreCat-ID: 859
Karl H, Willig A, Wolisz A, eds. Wireless Sensor Networks. First European Workshop, {EWSN} 2004, Berlin, Germany, January 19-21, 2004, Proceedings; 2004. doi:10.1007/b94854
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2004 | Conference Paper | LibreCat-ID: 988
Niebert N, Flinck H, Hancock R, Karl H, Prehofer C. Ambient Networks--Research for Communication Networks Beyond 3G. In: 13th IST Mobile and Wireless Communications-Summit 2004. ; 2004.
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2004 | Conference Paper | LibreCat-ID: 992
Gross J, Paoluzzi I, Karl H, Wolisz A. Throughput study for a dynamic OFDM-FDMA system with inband signaling. In: Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th. ; 2004:1787--1791.
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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 | Conference Paper | LibreCat-ID: 997
Carlson E, Karl H, Wolisz A, Prehofer C. Distributed allocation of time slots for real-time traffic in a wireless multi-hop network. In: Proc. European Wireless. ; 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 | Conference Paper | LibreCat-ID: 1002
Carlson E, Bettstetter C, Karl H, Prehofer C, Wolisz A. Distributed maintenance of resource reservation paths in multihop 802.11 networks. In: Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th. ; 2004:2994--2998.
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2004 | Conference Paper | LibreCat-ID: 1006
Gross J, Karl H, Wolisz A. On the effect of inband signaling and realistic channel knowledge on dynamic OFDM-FDMA systems. In: European Wireless 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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2004 | Conference Paper | LibreCat-ID: 1019
Gross J, Karl H, Wolisz A. 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). ; 2004.
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2003 | Report | LibreCat-ID: 2533
Handziski V, Köpke A, Karl H, Wolisz A. A Common Wireless Sensor Network Architecture? Berlin; 2003.
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2003 | Conference Paper | LibreCat-ID: 2535
Drytkiewicz W, Sroka S, Handzisk V, Köpke A, Karl H. A Mobility Frame work for OMNeT++. In: Proc. of 3rd International OMNeT++ Workshop at Budapest University of Technology and Economics. ; 2003.
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2003 | Conference Paper | LibreCat-ID: 1913
Fu X, Chen T, Festag A, Karl H, Schäfer G, Fan C. Secure, QoS-Enabled Mobility Support for IP-based Networks. In: Proceedings IP Based Cellular Network Conference IPCN, Paris / France, Dezember . ; 2003.
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2003 | Conference Paper | LibreCat-ID: 1914
Geerdes H-F, Karl H. The Potential of Relaying in Cellular Networks . In: Proceedings of INOC 2003, Evry/Paris. ; 2003.
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2003 | Conference Paper | LibreCat-ID: 1917
Aguiar A, Hoene C, Klaue J, Karl H, Miesmer H, Wolisz A. Channel-aware Schedulers for VoIP and MPEG4 based on Channel Prediction. In: Proc. of 8th Intl. Workshop on Mobile Multimedia Communications (MoMuC’03). ; 2003.
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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 | Conference Paper | LibreCat-ID: 862
Aguiar A, Karl H, Wolisz A, Miesmer H. A Framework for Evaluating Effects of Channel Prediction Inaccuracy on the Performance of Channel Adaptive Techniques. In: Proceedings of the International Conference on Wireless Networks, ICWN ’03, June 23 - 26, 2003, Las Vegas, Nevada, {USA}. ; 2003:3--9.
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2003 | Conference Paper | LibreCat-ID: 863
Gross J, Karl H, H. P. Fitzek F, Wolisz A. Comparison of Heuristic and Optimal Subcarrier Assignment Algorithms. In: Proceedings of the International Conference on Wireless Networks, ICWN ’03, June 23 - 26, 2003, Las Vegas, Nevada, {USA}. ; 2003:249--255.
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2003 | Conference Paper | LibreCat-ID: 864
J. M. Havinga P, Etalle S, Karl H, et al. EYES} - Energy Efficient Sensor Networks. In: Personal Wireless Communications, IFIP-TC6 8th International Conference, PWC 2003, Venice, Italy, September 23-25, 2003, Proceedings. ; 2003:198--201. doi:10.1007/978-3-540-39867-7_20
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2003 | Conference Paper | LibreCat-ID: 865
Kubisch M, Karl H, Wolisz A. Are Classes of Nodes with Different Power Amplifiers Good for Wireless Multi-hop Networks? In: Personal Wireless Communications, {IFIP-TC6} 8th International Conference, {PWC} 2003, Venice, Italy, September 23-25, 2003, Proceedings. ; 2003:841--846. doi:10.1007/978-3-540-39867-7_78
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2003 | Conference Paper | LibreCat-ID: 866
Köpke A, Willig A, Karl H. Chaotic Maps as Parsimonious Bit Error Models of Wireless Channels. In: Proceedings IEEE INFOCOM 2003, The 22nd Annual Joint Conference of the IEEE Computer and Communications Societies, San Franciso, CA, USA, March 30 - April 3, 2003. ; 2003:513--523. doi:10.1109/INFCOM.2003.1208702
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2003 | Conference Paper | LibreCat-ID: 867
Sroka S, Karl H. Performance Evaluation of a QoS-Aware Handover Mechanism. In: Proceedings of the Eighth IEEE Symposium on Computers and Communications (ISCC 2003), 30 June - 3 July 2003, Kiris-Kemer, Turkey. ; 2003:117--124. doi:10.1109/ISCC.2003.1214110
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2003 | Conference Paper | LibreCat-ID: 868
Kubisch M, Mengesha S, Hollos D, Karl H, Wolisz A. Applying ad-hoc relaying to improve capacity, energy efficiency, and immission in infrastructure-based WLANs. In: Kommunikation in Verteilten Systemen KiVS, 13. Fachtagung Kommunikation in Verteilten Systemen. KiVS 2003, 25.-28. Februar 2003, Leipzig, Eine Veranstaltung Der Informationstechnischen Gesellschaft (ITG/VDE) Unter Beteiligung Der Gesellschaft Für Informatik (GI) Ausgerichtet von Der Universität Leipzig. ; 2003:195--206. doi:10.1007/978-3-642-55569-5_16
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2003 | Conference Paper | LibreCat-ID: 869
Festag A, Karl H, Wolisz A. Classification and Evaluation of Multicast-Based Mobility Support in All-IP Cellular Networks. In: Kommunikation in Verteilten Systemen (KiVS), 13. Fachtagung Kommunikation in Verteilten Systemen. KiVS 2003, 25.-28. Februar 2003, Leipzig, Eine Veranstaltung Der Informationstechnischen Gesellschaft (ITG/VDE) Unter Beteiligung Der Gesellschaft Für Informatik (GI) Ausgerichtet von Der Universität Leipzig. ; 2003:233--244. doi:10.1007/978-3-642-55569-5_19
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2003 | Conference Paper | LibreCat-ID: 870
Kubisch M, Karl H, Wolisz A, Charlie Zhong L, M. Rabaey J. Distributed algorithms for transmission power control in wireless sensor networks. In: 2003 IEEE Wireless Communications and Networking, WCNC 2003, New Orleans, LA, USA, 16-20 March, 2003. ; 2003:558--563. doi:10.1109/WCNC.2003.1200410
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2003 | Conference Paper | LibreCat-ID: 987
Drytkiewicz W, Sroka S, Handziski V, Köpke A, Karl H. A mobility framework for omnet++. In: 3rd International OMNeT++ Workshop. ; 2003.
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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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2003 | Conference Paper | LibreCat-ID: 991
Gross J, Klaue J, Karl H, Wolisz A. Subcarrier allocation for variable bit rate video streams in wireless OFDM systems. In: Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th. ; 2003:2481--2485.
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2003 | Conference Paper | LibreCat-ID: 994
Karl H, Löbbers M, Nieberg T. A data aggregation framework for wireless sensor networks. In: Proc. Dutch Technology Foundation ProRISC Workshop on Circuits, Systems and Signal Processing. ; 2003.
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2003 | Conference Paper | LibreCat-ID: 999
Klaue J, Gross J, Karl H, Wolisz A. Semantic-aware link layer scheduling of mpeg-4 video streams in wireless systems. In: 3rd Workshop of Applications and Services in Wireless Networks 2003 (ASWN 2003). ; 2003.
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2003 | Conference Paper | LibreCat-ID: 1008
Neumann A, Fu X, Karl H. Prototype implementation and performance evaluation of a QoS-conditionalized handoff scheme for mobile IPv6 networks. In: Computer Communications, 2003. CCW 2003. Proceedings. 2003 IEEE 18th Annual Workshop On. ; 2003:24--29.
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2003 | Conference Paper | LibreCat-ID: 1024
Aguiar ACC, Hoene C, Klaue J, Karl H, Miesmer H, Wolisz A. Channel-Aware Schedulers For Voip And Mpeg4 For Wireless Communications. In: Proc. of 8th Intl. Workshop on Mobile Multimedia Communications (MoMuC’03). ; 2003.
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2002 | Report | LibreCat-ID: 2538
Karl H, Mengesha S, Hollos D. Relaying in Wireless Access Networks . London: Business Briefing: Wireless Technology 2002; 2002.
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2002 | Conference Paper | LibreCat-ID: 2541
Köpke A, Handziski V, Karl H. Making sensor networks intelligent. In: Proc. 7th Wireless World Research Forum (WWRF). Eindhoven/Netherlands; 2002.
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2002 | Conference Paper | LibreCat-ID: 2544
Miesmer H, Sanneck H, Aguier A, Karl H. Concepts for a QoS-enabled, TCP/IP-oriented Link Layer in Beyond 3G Networks. In: Proc. of 6th Wireless World Forum. London / GB; 2002.
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2002 | Conference Paper | LibreCat-ID: 2548
Hollos D, Karl H. A HiperLAN/2 simulation model in OMNeT++. In: Proc. of 2nd Intl. OMNet Workshop. Berlin ; 2002.
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2002 | Conference Paper | LibreCat-ID: 1921
Ngo-Quynh T, Karl H, Wolisz A, Rebensburg K. New Scheduling Algorithm for Providing Proportional Jitter in Differentiated Service Network . In: Proc. IST Mobile & Wireless Telecommunications Summit 2002. ; 2002.
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2002 | Conference Paper | LibreCat-ID: 871
Fu X, Karl H, Kappler C. QoS-Conditionalized Handoff for Mobile IPv6. In: NETWORKING 2002, Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; and Mobile and Wireless Communications, Second International IFIP-TC6 Networking Conference, Pisa, Italy, May 19-24, 2002, Proceedings. ; 2002:721--730. doi:10.1007/3-540-47906-6_58
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2002 | Conference Paper | LibreCat-ID: 872
Hollos D, Karl H. A protocol extension to HiperLAN/2 to support single-relay networks. In: Mobile Ad-Hoc Netzwerke, 1. Deutscher Workshop Über Mobile Ad-Hoc Netzwerke WMAN 2002, 25.-26. März 2002 in Ulm. ; 2002:91--107.
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