Azeem M. Khan, R., &; Karl, H. (2014). MAC Protocols for Cooperative Diversity in Wireless LANs and Wireless Sensor Networks. IEEE Communications Surveys and Tutorials, (1), 46--63.https://doi.org/10.1109/SURV.2013.042313.00067 

Beister, F., Dräxler, M., Aelken, J., &; Karl, H. (2014). Power model design for ICT systems – A generic approach. Computer Communications, 50, 77–85.https://doi.org/10.1016/j.comcom.2014.02.007 

Dannewitz, C., Kutscher, D., Ohlman, B., Farrell, S., Ahlgren, B., &; Karl, H. (2013). Network of Information (NetInf) - An information-centric networking architecture. Computer Communications, (7), 721--735.https://doi.org/10.1016/j.comcom.2013.01.009 

Dräxler, M., Biermann, T., &; Karl, H. (2013). Improving Cooperative Transmission Feasibility by Network Reconfiguration in Limited Backhaul Networks. International Journal of Wireless Information Networks, (3), 183--194.https://doi.org/10.1007/s10776-013-0207-7 

Biermann, T., Scalia, L., Choi, C., Kellerer, W., &; Karl, H. (2013). How backhaul networks influence the feasibility of coordinated multipoint in cellular networks. IEEE Communications Magazine, (8).https://doi.org/10.1109/MCOM.2013.6576356 

Biermann, T., Scalia, L., Choi, C., Karl, H., &; Kellerer, W. (2012). CoMP clustering and backhaul limitations in cooperative cellular mobile access networks. Pervasive and Mobile Computing, (5), 662--681.https://doi.org/10.1016/j.pmcj.2012.03.005 

Willig, A., Karl, H., &; Kipnis, D. (2012). Segment-based packet combining: how to schedule a dense relayer cluster? Wireless Networks, (2), 199--213.https://doi.org/10.1007/s11276-011-0395-y 

Ahlgren, B., A. Aranda-Gutierrez, P., Chemouil, P., Oueslati, S., M. Correia, L., Karl, H.,https://doi.org/10.1109/MCOM.2011.5936156__Welin, A. (2011). Content, connectivity, and cloud: ingredients for the network of the future. IEEE Communications Magazine, (7), 62--70.https://doi.org/10.1109/MCOM.2011.5936156 

Conti, M., Chong, S., Fdida, S., Jia, W., Karl, H., Lin, Y.-Dar,https://doi.org/10.1016/j.comcom.2011.09.001__Zukerman, M. (2011). Research challenges towards the Future Internet. Computer Communications, (18), 2115--2134.https://doi.org/10.1016/j.comcom.2011.09.001 

Warneke, D., &; Dannewitz, C. (2011). Load Balancing in P Networks: Using Statistics to Fight Data and Execution Skew. Journal of Advances in Information Technology, 2(1).https://doi.org/10.4304/jait.2.1.40-49 

Dannewitz, C., Biermann, T., Dräxler, M., &; Karl, H. (2011). Complex Queries in P Networks with Resource-Constrained Devices. Journal of Advances in Information Technology, 2(1).https://doi.org/10.4304/jait.2.1.2-14 

Valentin, S., &; Karl, H. (2010). Cooperative feedback to improve capacity and error rate in multiuser diversity systems - an OFDM case study. European Transactions on Telecommunications, 21(8), 714–724.https://doi.org/10.1002/ett.1454 

Valentin, S., &; Karl, H. (2010). Cooperative feedback to improve capacity and error rate in multiuser diversity systems - an OFDM case study. European Transactions on Telecommunications, (8), 714--724.https://doi.org/10.1002/ett.1454 

S. Lichte, H., Valentin, S., &; Karl, H. (2010). Expected interference in wireless networks with geometric path loss: a closed-form approximation. IEEE Communications Letters, (2), 130--132.https://doi.org/10.1109/LCOMM.2010.02.091863 

Simon Lichte, H., Valentin, S., &; Karl, H. (2010). Automated Development of Cooperative MAC Protocols - A Compiler-Assisted Approach. Mobile Networks and Applications, (6), 769--785.https://doi.org/10.1007/s11036-009-0210-5 

Biermann, T., Dräxler, M., &; Karl, H. (2009). Flow Synchronization for Network Coding. Journal of Communications, (11), 873--884.https://doi.org/10.4304/jcm.4.11.873-884 

Valentin, S., S. Lichte, H., Karl, H., Vivier, G., Simoens, S., Vidal, J., &; Agustin, A. (2009). Cooperative Wireless Networking Beyond Store-and-Forward . Wireless Personal Communications, (1), 49--68.https://doi.org/10.1007/s11277-007-9429-2 

Festag, A., Karl, H., &; Wolisz, A. (2007). Investigation of multicast-based mobility support in all-IP cellular networks. Wireless Communications and Mobile Computing, (3), 319--339.https://doi.org/10.1002/wcm.328 

Valentin, S., Lichte, H. S., Karl, H., Simoens, S., Vivier, G., Vidal, J., &; Agustin, A. (2007). Implementing cooperative wireless networks. Cognitive Wireless Networks, 155--178.https://doi.org/10.1007/978-1-4020-5979-7_8 

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