Throughput optimization of dynamic OFDM-FDMA systems with inband signaling
J. Gross, H. Karl, A. Wolisz, in: 2nd International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks 2004 (WiOpt 2004), 2004.

A common wireless sensor network architecture?
V.  Handziski, A. Köpke, H. Karl, A. Wolisz, A Common Wireless Sensor Network Architecture?, Berlin, 2003.

A Mobility Frame work for OMNeT++
W. Drytkiewicz, S. Sroka, V. Handzisk, A. Köpke, H. Karl, in: Proc. of 3rd International OMNeT++ Workshop at Budapest University of Technology and Economics, 2003.

Secure, QoS-Enabled Mobility Support for IP-based Networks
X. Fu, T. Chen, A. Festag, H. Karl, G. Schäfer, C. Fan, in: Proceedings IP Based Cellular Network Conference IPCN, Paris / France, Dezember , 2003.

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

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

The TCP control block interdependence in fixed networks - new performance results
M. Savoric, H. Karl, A. Wolisz, Computer Communications (2003) 366--375.

Ziel-orientierter Entwurf von Multi-hop Medienzugriffsprotokollen
W. Zirwas, J. Habetha, H. Karl, Praxis Der Informationsverarbeitung Und Kommunikation (2003) 184--189.

A Framework for Evaluating Effects of Channel Prediction Inaccuracy on the Performance of Channel Adaptive Techniques
A. Aguiar, H. Karl, A. Wolisz, H. Miesmer, in: Proceedings of the International Conference on Wireless Networks, ICWN ’03, June 23 - 26, 2003, Las Vegas, Nevada, USA, 2003, pp. 3--9.

Comparison of Heuristic and Optimal Subcarrier Assignment Algorithms
J. Gross, H. Karl, F. H. P. Fitzek, A. Wolisz, in: Proceedings of the International Conference on Wireless Networks, ICWN ’03, June 23 - 26, 2003, Las Vegas, Nevada, USA, 2003, pp. 249--255.