@inproceedingsValentin_Lichte_Warneke_Biermann_Funke_Karl_2008, title=Mobile Cooperative WLANs - MAC and Transceiver Design, Prototyping, and Field Measurements, DOI=10.1109/vetecf.2008.350, booktitle=2008 IEEE 68th Vehicular Technology Conference, publisher=IEEE, author=Valentin, Stefan and Lichte, Hermann S. and Warneke, Daniel and Biermann, Thorsten and Funke, Rafael and Karl, Holger, year=2008 

@inproceedingsValentin_Freitag_Karl_2008, title=Integrating Multiuser Dynamic OFDMA into IEEE 802.11 WLANs - LLC/MAC Extensions and System Performance, DOI=10.1109/icc.2008.626, booktitle=2008 IEEE International Conference on Communications, publisher=IEEE, author=Valentin, S. and Freitag, T. and Karl, Holger, year=2008 

@inbookWoldegebreal_Karl_2008, place=Berlin, Heidelberg, title=Network-Coding-Based Cooperative Transmission in Wireless Sensor Networks: Diversity-Multiplexing Tradeoff and Coverage Area Extension, DOI=10.1007/978-3-540-77690-1_9, booktitle=Lecture Notes in Computer Science, publisher=Springer Berlin Heidelberg, author=Woldegebreal, Dereje H. and Karl, Holger, year=2008, pages=141–155 

@inproceedingsH. Woldegebreal_Karl_2008, title=Network-Coding-Based Cooperative Transmission in Wireless Sensor Networks: Diversity-Multiplexing Tradeoff and Coverage Area Extension, DOI=10.1007/978-3-540-77690-1_9, booktitle=Wireless Sensor Networks, 5th European Conference, EWSN 2008, Bologna, Italy, January 30-February 1, 2008, Proceedings, author=H. Woldegebreal, Dereje and Karl, Holger, year=2008, pages=141--155 

@inproceedingsValentin_Freitag_Karl_2008, title=Integrating Multiuser Dynamic OFDMA into IEEE 802.11 WLANs - LLC/MAC Extensions and System Performance, DOI=10.1109/ICC.2008.626, booktitle=Proceedings of IEEE International Conference on Communications, ICC 2008, Beijing, China, 19-23 May 2008, author=Valentin, Stefan and Freitag, Thomas and Karl, Holger, year=2008, pages=3328--3334 

@inproceedingsS. Lichte_Valentin_Karl_Aad_Loyola_Widmer_2008, title=Design and Evaluation of a Routing-Informed Cooperative MAC Protocol for Ad Hoc Networks, DOI=10.1109/INFOCOM.2008.249, booktitle=INFOCOM 2008. 27th IEEE International Conference on Computer Communications, Joint Conference of the IEEE Computer and Communications Societies, 13-18 April 2008, Phoenix, AZ, USA, author=S. Lichte, Hermann and Valentin, Stefan and Karl, Holger and Aad, Imad and Loyola, Luis and Widmer, J}, year=2008, pages=1858--1866 

@inproceedingsValentin_S. Lichte_Karl_Aad_Loyola_Widmer_2008, title=Opportunistic relaying vs. selective cooperation: analyzing the occurrence-conditioned outage capacity, DOI=10.1145/1454503.1454539, booktitle=Proceedings of the 11th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2008, Vancouver, British Columbia, Canada, October 27-31, 2008, author=Valentin, Stefan and S. Lichte, Hermann and Karl, Holger and Aad, Imad and Loyola, Luis and Widmer, J., year=2008, pages=193--202 

@inproceedingsValentin_Volkhausen_Atay Onat_Yanikomeroglu_Karl_2008, title=Decoding-based channel estimation for selective cooperation diversity protocols, DOI=10.1109/PIMRC.2008.4699545, booktitle=Proceedings of the IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008, 15-18 September 2008, Cannes, French Riviera, France, author=Valentin, Stefan and Volkhausen, Tobias and Atay Onat, Furuzan and Yanikomeroglu, Halim and Karl, Holger, year=2008, pages=1--6 

@inproceedingsValentin_S. Lichte_Warneke_Biermann_Funke_Karl_2008, title=Mobile Cooperative WLANs - MAC and Transceiver Design, Prototyping, and Field Measurements, DOI=10.1109/VETECF.2008.350, booktitle=Proceedings of the 68th IEEE Vehicular Technology Conference, VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada, author=Valentin, Stefan and S. Lichte, Hermann and Warneke, Daniel and Biermann, Thorsten and Funke, Rafael and Karl, Holger, year=2008, pages=1--5 

@inproceedingsH. Woldegebreal_Valentin_Karl_2008, title=Incremental Network Coding in Cooperative Transmission Wireless Networks, DOI=10.1109/VETECF.2008.346, booktitle=Proceedings of the 68th IEEE Vehicular Technology Conference, VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada, author=H. Woldegebreal, Dereje and Valentin, Stefan and Karl, Holger, year=2008, pages=1--5 

@inproceedingsPlatz_Woldegebreal_Karl_2008, title=Random network coding in wireless sensor networks: Energy efficiency via cross-layer approach, booktitle=Spread Spectrum Techniques and Applications, 2008 IEEE 10th International Symposium on, author=Platz, Daniel and Woldegebreal, Dereje H and Karl, Holger, year=2008, pages=654--660 

@inproceedingsValentin_Volkhausen_Onat_Yanikomeroglu_Karl_2008, title=Enabling partial forwarding by decoding-based one and two-stage selective cooperation, booktitle=Communications Workshops, 2008. ICC Workshops’ 08. IEEE International Conference on, author=Valentin, Stefan and Volkhausen, Tobias and Onat, Furuzan Atay and Yanikomeroglu, Halim and Karl, Holger, year=2008, pages=129--133 

@inproceedingsWoldegebreal_Karl_2007, title=Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay Channels, DOI=10.1109/iswcs.2007.4392437, booktitle=2007 4th International Symposium on Wireless Communication Systems, publisher=IEEE, author=Woldegebreal, Dereje H. and Karl, Holger, year=2007 

@inproceedingsKarl_2007, place=Bern / Switzerland, title=Optimizing sleeping intervals in preamble sampling MAC for WSNs, publisher=Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference, author=Karl, Holger, year=2007 

@articleFestag_Karl_Wolisz_2007, title=Investigation of multicast-based mobility support in all-IP cellular networks, DOI=10.1002/wcm.328, number=3, journal=Wireless Communications and Mobile Computing, author=Festag, Andreas and Karl, Holger and Wolisz, Adam, year=2007, pages=319--339 

@inproceedingsvan der Stok_Karl_De Ambroggi_Decotignie_Siegemund_Lokhorst_Hellenschmidt_2007, title=WASP - Wirelessly Accessible Sensor Populations: A Project Overview, DOI=10.1007/978-3-540-85379-4_49, booktitle=Constructing Ambient Intelligence - AmI 2007 Workshops Darmstadt, Germany, November 7-10, 2007 Revised Papers, author=van der Stok, Peter and Karl, Holger and De Ambroggi, Fabio and Decotignie, JeanDominique and Siegemund, Frank and Lokhorst, Kees and Hellenschmidt, Michael, year=2007, pages=426--429 

@inproceedingsH. Woldegebreal_Valentin_Karl_2007, title=Outage probability analysis of cooperative transmission protocols without and with network coding: inter-user channels based comparison, DOI=10.1145/1298126.1298136, booktitle=Proceedings of the 10th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2007, Chania, Crete Island, Greece, October 22-26, 2007, author=H. Woldegebreal, Dereje and Valentin, Stefan and Karl, Holger, year=2007, pages=36--44 

@inproceedingsValentin_von Malm_Karl_2007, title=Traffic-Aware Asymmetric Cooperation Diversity for Media Streaming in Wireless Networks, DOI=10.1109/PIMRC.2007.4394223, booktitle=Proceedings of the IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2007, 3-7 September 2007, Athens, Greece, author=Valentin, Stefan and von Malm, Holger and Karl, Holger, year=2007, pages=1--6 

@inproceedingsS. Lichte_Valentin_Eitzen_Stege_Unger_Karl_2007, title=Integrating multiuser dynamic OFDMA into IEEE 802.11a and prototyping it on a real-time software-defined radio testbed, DOI=10.1109/TRIDENTCOM.2007.4444671, booktitle=3rd International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities, TridentCom 2007, Orlando, Florida, USA, May 21-23 2007, author=S. Lichte, Hermann and Valentin, Stefan and Eitzen, Falk and Stege, Matthias and Unger, Carsten and Karl, Holger, year=2007, pages=1--9 

@inproceedingsValentin_Karl_2007, title=Effect of User Mobility in Coded Cooperative Systems with Joint Partner and Cooperation Level Selection, DOI=10.1109/WCNC.2007.170, booktitle=IEEE Wireless Communications and Networking Conference, WCNC 2007, Hong Kong, China, 11-15 March, 2007, author=Valentin, Stefan and Karl, Holger, year=2007, pages=896--901