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362 Publications
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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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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2003 | Report | LibreCat-ID: 2533
Handziski, V., Köpke, A., Karl, H., & Wolisz, A. (2003). A common wireless sensor network architecture? Berlin.
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2003 | Conference Paper | LibreCat-ID: 2535
Drytkiewicz, W., Sroka, S., Handzisk, V., Köpke, A., & Karl, H. (2003). A Mobility Frame work for OMNeT++. In Proc. of 3rd International OMNeT++ Workshop at Budapest University of Technology and Economics.
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2003 | Conference Paper | LibreCat-ID: 1913
Fu, X., Chen, T., Festag, A., Karl, H., Schäfer, G., & Fan, C. (2003). Secure, QoS-Enabled Mobility Support for IP-based Networks. In Proceedings IP Based Cellular Network Conference IPCN, Paris / France, Dezember .
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2003 | Conference Paper | LibreCat-ID: 1914
Geerdes, H.-F., & Karl, H. (2003). The Potential of Relaying in Cellular Networks . In Proceedings of INOC 2003, Evry/Paris.
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2003 | Conference Paper | LibreCat-ID: 1917
Aguiar, A., Hoene, C., Klaue, J., Karl, H., Miesmer, H., & Wolisz, A. (2003). Channel-aware Schedulers for VoIP and MPEG4 based on Channel Prediction. In Proc. of 8th Intl. Workshop on Mobile Multimedia Communications (MoMuC’03).
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2003 | Journal Article | LibreCat-ID: 860
Savoric, M., Karl, H., & Wolisz, A. (2003). The TCP control block interdependence in fixed networks - new performance results. Computer Communications, (4), 366--375. https://doi.org/10.1016/S0140-3664(02)00155-X
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2003 | Journal Article | LibreCat-ID: 861
Zirwas, W., Habetha, J., & Karl, H. (2003). Ziel-orientierter Entwurf von Multi-hop Medienzugriffsprotokollen. Praxis Der Informationsverarbeitung Und Kommunikation, (4), 184--189. https://doi.org/10.1515/PIKO.2003.184
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2003 | Conference Paper | LibreCat-ID: 862
Aguiar, A., Karl, H., Wolisz, A., & Miesmer, H. (2003). 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} (pp. 3--9).
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2003 | Conference Paper | LibreCat-ID: 863
Gross, J., Karl, H., H. P. Fitzek, F., & Wolisz, A. (2003). 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} (pp. 249--255).
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2003 | Conference Paper | LibreCat-ID: 864
J. M. Havinga, P., Etalle, S., Karl, H., Petrioli, C., Zorzi, M., Kip, H., & Lentsch, T. (2003). EYES} - Energy Efficient Sensor Networks. In Personal Wireless Communications, IFIP-TC6 8th International Conference, PWC 2003, Venice, Italy, September 23-25, 2003, Proceedings (pp. 198--201). https://doi.org/10.1007/978-3-540-39867-7_20
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2003 | Conference Paper | LibreCat-ID: 865
Kubisch, M., Karl, H., & Wolisz, A. (2003). 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 (pp. 841--846). https://doi.org/10.1007/978-3-540-39867-7_78
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2003 | Conference Paper | LibreCat-ID: 866
Köpke, A., Willig, A., & Karl, H. (2003). 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 (pp. 513--523). https://doi.org/10.1109/INFCOM.2003.1208702
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2003 | Conference Paper | LibreCat-ID: 867
Sroka, S., & Karl, H. (2003). 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 (pp. 117--124). https://doi.org/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. (2003). 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 (pp. 195--206). https://doi.org/10.1007/978-3-642-55569-5_16
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2003 | Conference Paper | LibreCat-ID: 869
Festag, A., Karl, H., & Wolisz, A. (2003). 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 (pp. 233--244). https://doi.org/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. (2003). 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 (pp. 558--563). https://doi.org/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. (2003). A mobility framework for omnet++. In 3rd International OMNeT++ workshop.
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2003 | Journal Article | LibreCat-ID: 989
Karl, H. (2003). An overview of energy-efficiency techniques for mobile communication systems. Report of AG Mobikom WG7.
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2003 | Conference Paper | LibreCat-ID: 991
Gross, J., Klaue, J., Karl, H., & Wolisz, A. (2003). Subcarrier allocation for variable bit rate video streams in wireless OFDM systems. In Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th (pp. 2481--2485).
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2003 | Conference Paper | LibreCat-ID: 994
Karl, H., Löbbers, M., & Nieberg, T. (2003). A data aggregation framework for wireless sensor networks. In Proc. Dutch Technology Foundation ProRISC Workshop on Circuits, Systems and Signal Processing.
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2003 | Conference Paper | LibreCat-ID: 999
Klaue, J., Gross, J., Karl, H., & Wolisz, A. (2003). 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).
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2003 | Conference Paper | LibreCat-ID: 1008
Neumann, A., Fu, X., & Karl, H. (2003). 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 (pp. 24--29).
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2003 | Conference Paper | LibreCat-ID: 1024
Aguiar, A. C. C., Hoene, C., Klaue, J., Karl, H., Miesmer, H., & Wolisz, A. (2003). Channel-Aware Schedulers For Voip And Mpeg4 For Wireless Communications. In Proc. of 8th Intl. Workshop on Mobile Multimedia Communications (MoMuC’03).
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2002 | Report | LibreCat-ID: 2538
Karl, H., Mengesha, S., & Hollos, D. (2002). Relaying in Wireless Access Networks . London: Business Briefing: Wireless Technology 2002.
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2002 | Conference Paper | LibreCat-ID: 2541
Köpke, A., Handziski, V., & Karl, H. (2002). Making sensor networks intelligent. In Proc. 7th Wireless World Research Forum (WWRF). Eindhoven/Netherlands.
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2002 | Conference Paper | LibreCat-ID: 2544
Miesmer, H., Sanneck, H., Aguier, A., & Karl, H. (2002). Concepts for a QoS-enabled, TCP/IP-oriented Link Layer in Beyond 3G Networks. In Proc. of 6th Wireless World Forum. London / GB.
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2002 | Conference Paper | LibreCat-ID: 2548
Hollos, D., & Karl, H. (2002). A HiperLAN/2 simulation model in OMNeT++. In Proc. of 2nd Intl. OMNet Workshop. Berlin .
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2002 | Conference Paper | LibreCat-ID: 1921
Ngo-Quynh, T., Karl, H., Wolisz, A., & Rebensburg, K. (2002). New Scheduling Algorithm for Providing Proportional Jitter in Differentiated Service Network . In Proc. IST Mobile & Wireless Telecommunications Summit 2002.
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2002 | Conference Paper | LibreCat-ID: 871
Fu, X., Karl, H., & Kappler, C. (2002). 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 (pp. 721--730). https://doi.org/10.1007/3-540-47906-6_58
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2002 | Conference Paper | LibreCat-ID: 872
Hollos, D., & Karl, H. (2002). 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 (pp. 91--107).
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2002 | Conference Paper | LibreCat-ID: 990
Xing, W., Karl, H., Wolisz, A., & Müller, H. (2002). M-SCTP: Design and prototypical implementation of an end-to-end mobility concept. In In Proc. 5th Intl. Workshop The Internet Challenge: Technology and Applications (p. 43).
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2002 | Conference Paper | LibreCat-ID: 1001
Quynh, T. N., Karl, H., Wolisz, A., & Rebensburg, K. (2002). Using only Proportional Jitter Scheduling at the boundary of a Differentiated Service Network: simple and efficient. In Universal Multiservice Networks, 2002. ECUMN 2002. 2nd European Conference on (pp. 116--123).
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2002 | Conference Paper | LibreCat-ID: 1009
Sroka, S., & Karl, H. (2002). Using akaroa2 with omnet++. In 2nd International OMNeT++ Workshop, Berlin, Germany.
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2002 | Journal Article | LibreCat-ID: 1014
Ngo-Quynh, T., Karl, H., Wolisz, A., & Rebensburg, K. (2002). New scheduling algorithm for providing proportional jitter in differentiated services network. Proceedings of IST Mobile Communication and Wireless Telecommunications Summit, Thessaloniki, Greece.
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2002 | Conference Paper | LibreCat-ID: 1020
Aguiar, A., Karl, H., & Wolisz, A. (2002). Effects of prediction inaccuracy on the performance of channelstate-aware link layer schedulers. In Proc. of 1st Intl. Conf. on Mobile and Ubiquitous Multimedia (pp. 21--33).
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2001 | Conference Paper | LibreCat-ID: 2552
Karl, H. (2001). Relaying in Wireless Access Networks – A Capacity and Energy-Efficiency Perspective . In Proc. Wireless World Research Forum Kickoff Meeting (WWRF). München.
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2001 | Conference Paper | LibreCat-ID: 2554
Karl, H. (2001). Relaying ñ bad for energy, good for capacity? Rom/Italy: Eork-in-progress session of mobicom 2001.
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2001 | Conference Paper | LibreCat-ID: 2556
Karl, H., & Hentschel, T. (2001). IBMS 2 - Integriertes Bandbreiteneffizientes Mobiles Software-Radio System. In Zukunftsperspektiven der Mobilkommunikation, Symposium Bundesministerium für Bildung und Forschung.
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2001 | Conference Paper | LibreCat-ID: 873
Mengesha, S., Karl, H., & Wolisz, A. (2001). Improving Goodput by Relaying in Transmission-Power-Limited Wireless Systems. In GI Jahrestagung (1) (pp. 537--544).
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2001 | Conference Paper | LibreCat-ID: 995
Karl, H., & Mengesha, S. (2001). Analysing capacity improvements in wireless networks by relaying. In Proc. of IEEE Intl. Conf. on Wireless LANs and Home Networks (pp. 339--348).
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2001 | Conference Paper | LibreCat-ID: 996
Quynh, T., Karl, H., Wolisz, A., & Rebensburg, K. (2001). Relative jitter packet scheduling for differentiated services. In Proc. 9th IFIP Conf. Perf. Modeling and Eval. of ATM & IP Networks.
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2001 | Conference Paper | LibreCat-ID: 1016
Quynh, T. N., Karl, H., Wolisz, A., & Rebensburg, K. (2001). The influence of proportional jitter and delay on end to end delay in differentiated service network. In Network Computing and Applications, 2001. NCA 2001. IEEE International Symposium on (pp. 354--357).
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2000 | Conference Paper | LibreCat-ID: 1920
Karl, H., Polze, A., & Werner, M. (2000). Predictable Network Computing using Message-driven Scheduling. In Proc. the Workshop on Run-Time Systems for Parallel Programming.
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1999 | Conference Paper | LibreCat-ID: 874
Karl, H. (1999). Towards Quality of Service for Parallel Computing: An Overview of the MILAN Project. In High-Performance Computing and Networking, 7th International Conference, HPCN Europe 1999, Amsterdam, The Netherlands, April 12-14, 1999, Proceedings (pp. 841--850). https://doi.org/10.1007/BFb0100644
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1999 | Conference Paper | LibreCat-ID: 875
Karl, H. (1999). Coscheduling through Synchronized Scheduling Servers -- A Prototype and Experiments. In Parallel and Distributed Processing, 11 IPPS/SPDP’99 Workshops Held in Conjunction with the 13th International Parallel Processing Symposium and 10th Symposium on Parallel and Distributed Processing, San Juan, Puerto Rico, USA, April 12-16, 1999, Proceedings (pp. 1115--1129). https://doi.org/10.1007/BFb0097997
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1998 | Journal Article | LibreCat-ID: 876
Karl, H. (1998). Bridging the gap between distributed shared memory and message passing. Concurrency - Practice and Experience, (11–13), 887--900. https://doi.org/10.1002/(SICI)1096-9128(199809/11)10:11/13<887::AID-CPE416>3.0.CO;2-0
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1998 | Journal Article | LibreCat-ID: 877
Baratloo, A., Karaul, M., Karl, H., & M. Kedem, Z. (1998). An infrastructure for network computing with Java applets. Concurrency -- Practice and Experience, (11–13), 1029--1041. https://doi.org/10.1002/(SICI)1096-9128(199809/11)10:11/13<1029::AID-CPE412>3.0.CO;2-U
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1998 | Journal Article | LibreCat-ID: 878
Karl, H., Werner, M., & Küttner, L. (1998). Experimental investigation of message latencies in the Totem protocol in the Presence of faults. IEEE Proceedings -- Software, (6), 219--227. https://doi.org/10.1049/ip-sen:19982443
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1998 | Conference Paper | LibreCat-ID: 879
Karl, H., Werner, M., & Kuttner, L. (1998). An Experimental Investigation of Message Latencies in the Totem Protocol in the Presence of Faults. In 24th EUROMICRO ’98 Conference, Engineering Systems and Software for the Next Decade, 25-27 August 1998, Vesteras, Sweden (pp. 10468--10475). https://doi.org/10.1109/EURMIC.1998.711841
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1998 | Conference Paper | LibreCat-ID: 1012
Karl, H., & Werner, M. (1998). An optimal checkpointing interval for real-time systems. In Proc. Intl. Conf. Parallel and Distributed Processing Techniques and Applications (pp. 604--612).
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1997 | Journal Article | LibreCat-ID: 1445
Baratloo, A., Karaul, M., Karl, H., & Kedem, Z. M. (1997). KnittingFactory: An Infrastructure for Distributed Web Applications. Technical Report.
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1996 | Conference Paper | LibreCat-ID: 1918
Dreier, B., Huber, A., Zahn, M., Karl, H., & Ungerer, T. (1996). ReGTime - Rent Gigaflops someTimes. In Proceedings Trends in Distributed Systems.
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1996 | Conference Paper | LibreCat-ID: 880
Dreier, B., Huber, A., Karl, H., Ungerer, T., & Zahn, M. (1996). ReGTime - Rent Gigaflops someTimes. In Trends in Distributed Systems: CORBA and Beyond, International Workshop TreDS ’96, Aachen, Germany, October 1-2, 1996, Proceedings (pp. 84--93). https://doi.org/10.1007/3-540-61842-2_28
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