Valentin S, Karl H. 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). ; 2007.
LibreCat: /record/1015

Valentin S, Lichte HS, Karl H, et al. Implementing cooperative wireless networks. Cognitive Wireless Networks. 2007:155--178. doi:10.1007/978-1-4020-5979-7_8
LibreCat: /record/1018
DOI: 10.1007/978-1-4020-5979-7_8

Valentin S, von Malm H, Karl H. Evaluating the GNU Software Radio Platform for Wireless Testbeds.; 2006.
LibreCat: /record/2518

Valentin S, Lichte HS, Karl H, et al. Cooperative wireless networking beyond store-and-forward: Perspectives for PHY and MAC design. In: ; 2006.
LibreCat: /record/2523

Dannewitz C, Berg S, Karl H. An IEEE 802.21-based Universal Information Service . In:  Proc. of the Wireless World Research Forum Meeting . ; 2006.
LibreCat: /record/2526

Hoene C, Karl H, Wolisz A. A perceptual quality model intended for adaptive VoIP applications. Int J Communication Systems. 2006;(3):299--316. doi:10.1002/dac.755
LibreCat: /record/837
DOI: 10.1002/dac.755

Gross J, Geerdes H-Florian, Karl H, Wolisz A. Performance analysis of dynamic OFDMA systems with inband signaling. IEEE Journal on Selected Areas in Communications. 2006;(3):427--436. doi:10.1109/JSAC.2005.862386
LibreCat: /record/838
DOI: 10.1109/JSAC.2005.862386

Carlson E, Prehofer C, Bettstetter C, Karl H, Wolisz A. A Distributed End-to-End Reservation Protocol for IEEE 802.11-Based Wireless Mesh Networks. IEEE Journal on Selected Areas in Communications. 2006;(11):2018--2027. doi:10.1109/JSAC.2006.881633
LibreCat: /record/839
DOI: 10.1109/JSAC.2006.881633

Mattern F, Karl H, Römer K. Wireless Sensor Networks. In: R\'22omer K, Karl H, Mattern F, eds. Third European Workshop, EWSN 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings. Lecture Notes in Computer Science. ; 2006. doi:10.1007/11669463
LibreCat: /record/840
DOI: 10.1007/11669463

Aguiar A, Wolisz A, Lederer H, Karl H. Channel-Adaptive Schedulers with State-of-the-Art Channel Predictors. In: Proceedings of the 11th European Wireless Conference 2005. ; 2005.
LibreCat: /record/1843

Karl H, Willig A. Protocols and Architectures for Wireless Sensor Networks.; 2005.
LibreCat: /record/841

Ebert J-P, Hollos D, Karl H, Löbbers M. Does Multi-Hop Communication Reduce Electromagnetic Exposure? Comput J. 2005;(1):72--83. doi:10.1093/comjnl/bxh062
LibreCat: /record/842
DOI: 10.1093/comjnl/bxh062

Savoric M, Karl H, Schläger M, Poschwatta T, Wolisz A. Analysis and performance evaluation of the EFCM common congestion controller for TCP connections. Computer Networks. 2005;(2):269--294. doi:10.1016/j.comnet.2005.01.012
LibreCat: /record/843
DOI: 10.1016/j.comnet.2005.01.012

Gross J, Valentin S, Karl H, Wolisz A. A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system. European Transactions on Telecommunications. 2005;(1):37--49. doi:10.1002/ett.1030
LibreCat: /record/844
DOI: 10.1002/ett.1030

Karl H, Lentsch T, Ritter H. Drahtlose Sensornetze. Praxis der Informationsverarbeitung und Kommunikation. 2005;(2):66--67. doi:10.1515/PIKO.2005.66
LibreCat: /record/845
DOI: 10.1515/PIKO.2005.66

Willig A, Karl H. Data Transport Reliability in Wireless Sensor Networks. A Survey of Issues and Solutions. Praxis der Informationsverarbeitung und Kommunikation. 2005;(2):86--92. doi:10.1515/PIKO.2005.86
LibreCat: /record/846
DOI: 10.1515/PIKO.2005.86

Kopke A, Karl H, Lobbers M. 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. ; 2005:226--235. doi:10.1109/EWSN.2005.1462015
LibreCat: /record/847
DOI: 10.1109/EWSN.2005.1462015

Karl H. Ad Hoc Networks. In: The Industrial Information Technology Handbook. ; 2005:1--16.
LibreCat: /record/848

Valentin S, Gross J, Karl H, Wolisz A. 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. ; 2005.
LibreCat: /record/1013

Gross J, Valentin S, Karl H, Wolisz A. A study of impact of inband signalling and realistic channel knowledge for an example dynamic OFDM-FDMA system. European Transactions on Telecommunications. 2005;16(1):37-49. doi:10.1002/ett.1030
LibreCat: /record/1378
DOI: 10.1002/ett.1030

Köpke A, Karl H, Wolisz A. Consensus in WSN – Identifying critical protocol mechanisms. In: GI / ITG Fachgespräche Drahtlose Sensornetzwerke. ; 2004.
LibreCat: /record/2529

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.
LibreCat: /record/1911

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
LibreCat: /record/850
DOI: 10.1016/j.comcom.2004.01.010

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
LibreCat: /record/851
DOI: 10.1109/MWC.2004.1295733

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
LibreCat: /record/852
DOI: 10.1007/978-3-540-24606-0_12

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 T 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
LibreCat: /record/853
DOI: 10.1007/0-387-24043-8_15

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
LibreCat: /record/854
DOI: 10.1145/1023663.1023684

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-T Networking Conference, Athens, Greece, May 9-14, 2004, Proceedings. ; 2004:1312--1317. doi:10.1007/978-3-540-24693-0_112
LibreCat: /record/855
DOI: 10.1007/978-3-540-24693-0_112

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
LibreCat: /record/856
DOI: 10.1109/WCNC.2004.1311292

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
LibreCat: /record/857
DOI: 10.1109/WCNC.2004.1311845

Karl H. Data Transmission in Mobile Communication Systems. In: Location-Based Services. ; 2004:207--244.
LibreCat: /record/858

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
LibreCat: /record/859
DOI: 10.1007/b94854

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