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.
LibreCat: /record/988

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.
LibreCat: /record/992

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.
LibreCat: /record/993

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.
LibreCat: /record/997

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.
LibreCat: /record/998

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. V-Fall. 2004 IEEE 60th. ; 2004:2994--2998.
LibreCat: /record/1002

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.
LibreCat: /record/1006

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
LibreCat: /record/1017
DOI: /10.1.1.3.3185

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.
LibreCat: /record/1019

Handziski V, Köpke A, Karl H, Wolisz A. A Common Wireless Sensor Network Architecture? Berlin; 2003.
LibreCat: /record/2533

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.
LibreCat: /record/2535

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.
LibreCat: /record/1913

Geerdes H-F, Karl H. The Potential of Relaying in Cellular Networks . In: Proceedings of INOC 2003, Evry/Paris. ; 2003.
LibreCat: /record/1914

Aguiar A, Hoene C, Klaue J, Karl H, Miesmer H, Wolisz A. Channel-aware Schedulers for VoIP and MPE based on Channel Prediction. In: Proc. of 8th Intl. Workshop on Mobile Multimedia Communications (MoMuC’03). ; 2003.
LibreCat: /record/1917

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
LibreCat: /record/860
DOI: 10.1016/S0140-3664(02)00155-X

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
LibreCat: /record/861
DOI: 10.1515/PIKO.2003.184

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.
LibreCat: /record/862

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.
LibreCat: /record/863

J. M. Havinga P, Etalle S, Karl H, et al. EYES - Energy Efficient Sensor Networks. In: Personal Wireless Communications, IFIP-T 8th International Conference, PWC 2003, Venice, Italy, September 23-25, 2003, Proceedings. ; 2003:198--201. doi:10.1007/978-3-540-39867-7_20
LibreCat: /record/864
DOI: 10.1007/978-3-540-39867-7_20

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-T 8th International Conference, PWC 2003, Venice, Italy, September 23-25, 2003, Proceedings. ; 2003:841--846. doi:10.1007/978-3-540-39867-7_78
LibreCat: /record/865
DOI: 10.1007/978-3-540-39867-7_78

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
LibreCat: /record/866
DOI: 10.1109/INFCOM.2003.1208702

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
LibreCat: /record/867
DOI: 10.1109/ISCC.2003.1214110

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
LibreCat: /record/868
DOI: 10.1007/978-3-642-55569-5_16

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
LibreCat: /record/869
DOI: 10.1007/978-3-642-55569-5_19

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
LibreCat: /record/870
DOI: 10.1109/WCNC.2003.1200410

Drytkiewicz W, Sroka S, Handziski V, Köpke A, Karl H. A mobility framework for omnet++. In: 3rd International OMNeT++ Workshop. ; 2003.
LibreCat: /record/987

Karl H. An overview of energy-efficiency techniques for mobile communication systems. Report of AG Mobikom W. 2003.
LibreCat: /record/989

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.
LibreCat: /record/991

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.
LibreCat: /record/994

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.
LibreCat: /record/999

Neumann A, Fu X, Karl H. Prototype implementation and performance evaluation of a QoS-conditionalized handoff scheme for mobile IP networks. In: Computer Communications, 2003. CCW 2003. Proceedings. 2003 IEEE 18th Annual Workshop On. ; 2003:24--29.
LibreCat: /record/1008

Aguiar ACC, Hoene C, Klaue J, Karl H, Miesmer H, Wolisz A. Channel-Aware Schedulers For Voip And Mpe For Wireless Communications. In: Proc. of 8th Intl. Workshop on Mobile Multimedia Communications (MoMuC’03). ; 2003.
LibreCat: /record/1024

Karl H, Mengesha S, Hollos D. Relaying in Wireless Access Networks . London: Business Briefing: Wireless Technology 2002; 2002.
LibreCat: /record/2538

Köpke A, Handziski V, Karl H.  Making sensor networks intelligent. In: Proc. 7th Wireless World Research Forum (WWRF). Eindhoven/Netherlands; 2002.
LibreCat: /record/2541

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.
LibreCat: /record/2544

Hollos D, Karl H. A HiperLAN/2 simulation model in OMNeT++. In: Proc. of 2nd Intl. OMNet Workshop. Berlin ; 2002.
LibreCat: /record/2548

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.
LibreCat: /record/1921

Fu X, Karl H, Kappler C. QoS-Conditionalized Handoff for Mobile IP. In: NETWORKING 2002, Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; and Mobile and Wireless Communications, Second International IFIP-T Networking Conference, Pisa, Italy, May 19-24, 2002, Proceedings. ; 2002:721--730. doi:10.1007/3-540-47906-6_58
LibreCat: /record/871
DOI: 10.1007/3-540-47906-6_58

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.
LibreCat: /record/872

Xing W, Karl H, Wolisz A, Müller H. 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. ; 2002:43.
LibreCat: /record/990

Quynh TN, Karl H, Wolisz A, Rebensburg K. 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. ; 2002:116--123.
LibreCat: /record/1001

Sroka S, Karl H. Using akaro with omnet++. In: 2nd International OMNeT++ Workshop, Berlin, Germany. ; 2002.
LibreCat: /record/1009

Ngo-Quynh T, Karl H, Wolisz A, Rebensburg K. New scheduling algorithm for providing proportional jitter in differentiated services network. Proceedings of IST mobile communication and wireless telecommunications summit, Thessaloniki, Greece. 2002.
LibreCat: /record/1014

Aguiar A, Karl H, Wolisz A. Effects of prediction inaccuracy on the performance of channelstate-aware link layer schedulers. In: Proc. of 1st Intl. Conf. on Mobile and Ubiquitous Multimedia. ; 2002:21--33.
LibreCat: /record/1020

Karl H. Relaying in Wireless Access Networks –   A Capacity and Energy-Efficiency Perspective . In: Proc. Wireless World Research Forum Kickoff Meeting (WWRF). München; 2001.
LibreCat: /record/2552

Karl H. Relaying ñ bad for energy,  good for capacity? In: Rom/Italy: Eork-in-progress session of mobicom 2001; 2001.
LibreCat: /record/2554

Karl H, Hentschel T. IBMS 2 - Integriertes Bandbreiteneffizientes Mobiles Software-Radio System. In: Zukunftsperspektiven Der Mobilkommunikation, Symposium Bundesministerium Für Bildung Und Forschung. ; 2001.
LibreCat: /record/2556

Mengesha S, Karl H, Wolisz A. Improving Goodput by Relaying in Transmission-Power-Limited Wireless Systems. In: GI Jahrestagung (1). ; 2001:537--544.
LibreCat: /record/873

Karl H, Mengesha S. Analysing capacity improvements in wireless networks by relaying. In: Proc. of IEEE Intl. Conf. on Wireless LANs and Home Networks. ; 2001:339--348.
LibreCat: /record/995

Quynh T, Karl H, Wolisz A, Rebensburg K. Relative jitter packet scheduling for differentiated services. In: Proc. 9th IFIP Conf. Perf. Modeling and Eval. of ATM &; IP Networks. ; 2001.
LibreCat: /record/996