Complex Queries in P Networks with Resource-Constrained Devices
C. Dannewitz, T. Biermann, M. Dräxler, H. Karl, Journal of Advances in Information Technology 2 (2011).

Cooperative feedback to improve capacity and error rate in multiuser diversity systems - an OFDM case study
S. Valentin, H. Karl, European Transactions on Telecommunications 21 (2010) 714–724.

Cooperative feedback to improve capacity and error rate in multiuser diversity systems - an OFDM case study
S. Valentin, H. Karl, European Transactions on Telecommunications (2010) 714--724.

Expected interference in wireless networks with geometric path loss: a closed-form approximation
H. S. Lichte, S. Valentin, H. Karl, IEEE Communications Letters (2010) 130--132.

Automated Development of Cooperative MAC Protocols - A Compiler-Assisted Approach
H. Simon Lichte, S. Valentin, H. Karl, Mobile Networks and Applications (2010) 769--785.

Flow Synchronization for Network Coding
T. Biermann, M. Dräxler, H. Karl, Journal of Communications (2009) 873--884.

Cooperative Wireless Networking Beyond Store-and-Forward 
S. Valentin, H. S. Lichte, H. Karl, G. Vivier, S. Simoens, J. Vidal, A. Agustin, Wireless Personal Communications (2009) 49--68.

Investigation of multicast-based mobility support in all-IP cellular networks
A. Festag, H. Karl, A. Wolisz, Wireless Communications and Mobile Computing (2007) 319--339.

Implementing cooperative wireless networks
S. Valentin, H.S. Lichte, H. Karl, S. Simoens, G. Vivier, J. Vidal, A. Agustin, Cognitive Wireless Networks (2007) 155--178.

A perceptual quality model intended for adaptive VoIP applications
C. Hoene, H. Karl, A. Wolisz, Int. J. Communication Systems (2006) 299--316.