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Keller, M., Pawlik, S., Pietrzyk, P., &; Karl, H. (2013). A Local Heuristic for Latency-Optimized Distributed Cloud Deployment. In Proceedings of the 6th International Conference on Utility and Cloud Computing (UCC) workshop on Distributed cloud computing (pp. 429–434).https://doi.org/10.1109/UCC.2013.85 

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Dannewitz, C., Karl, H., &; Yadav, A. (2012). Report on Locality in DNS Requests – Evaluation and Impact on Future Internet Architectures.

Biermann, T., &; Scalia, L. (2012). Mobile WDM Backhaul Access Networks with Physical Inter-Base-Station Links for Coordinated Multipoint Transmission/Reception Systems. In 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011. IEEE.https://doi.org/10.1109/glocom.2011.6133510 

Choi, C., Scalia, L., Biermann, T., &; Mizuta, S. (2012). Coordinated multipoint multiuser-MIMO transmissions over backhaul-constrained mobile access networks. In 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications. IEEE.https://doi.org/10.1109/pimrc.2011.6139719 

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 

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Herlich, M., &; Karl, H. (2012). Average and competitive analysis of latency and power consumption of a queuing system with a sleep mode. In Proceedings of the 3rd International Conference on Energy-Efficient Computing and Networking, e-Energy’12, Madrid, Spain, May 9-11, 2012 (p. 14).https://doi.org/10.1145/2208828.2208842 

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Künsemöller, J., &; Karl, H. (2012). On Local Separation of Processing and Storage in Infrastructure-as-a-Service. In Economics of Grids, Clouds, Systems, and Services - 9th International Conference, GECON 2012, Berlin, Germany, November 27-28, 2012. Proceedings (pp. 125--138).https://doi.org/10.1007/978-3-642-35194-5_10 

Dräxler, M., &; Karl, H. (2012). Efficiency of On-Path and Off-Path Caching Strategies in Information Centric Networks. In 2012 IEEE International Conference on Green Computing and Communications, Conference on Internet of Things, and Conference on Cyber, Physical and Social Computing, GreenCom/iThings/CPSCom 2012, Besancon, France, November 20-23, 2012 (pp. 581--587).https://doi.org/10.1109/GreenCom.2012.82 

Dannewitz, C., Herlich, M., &; Karl, H. (2012). OpenNetInf - prototyping an information-centric Network Architecture. In 37th Annual IEEE Conference on Local Computer Networks, Workshop Proceedings, Clearwater Beach, FL, USA, October 22-25, 2012 (pp. 1061--1069).https://doi.org/10.1109/LCNW.2012.6424044 

Dräxler, M., Biermann, T., Karl, H., &; Kellerer, W. (2012). Cooperating base station set selection and network reconfiguration in limited backhaul networks. In 23rd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012, Sydney, Australia, September 9-12, 2012 (pp. 1383--1389).https://doi.org/10.1109/PIMRC.2012.6362563 

Dräxler, M., Beister, F., Kruska, S., Aelken, J., &; Karl, H. (2012). Using OMNeT++ for energy optimization simulations in mobile core networks. In International ICST Conference on Simulation Tools and Techniques, SIMUTOOLS ’12, Sirmione-Desenzano, Italy, March 19-23, 2012 (pp. 157--165).https://doi.org/10.4108/icst.simutools.2012.247676 

Volkhausen, T., Schinköthe, K., &; Karl, H. (2012). Quantization techniques for accurate soft message combining. In 2012 IEEE Wireless Communications and Networking Conference, WCNC 2012, Paris, France, April 1-4, 2012 (pp. 575--580).https://doi.org/10.1109/WCNC.2012.6214434 

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Hohenberger, T. (2012). Queuing Latency at Cooperative Base Stations. Universität Paderborn.

Rojahn, T. (2012). Optimale Zuteilung von Nutzern zu verteilten Cloud-Standorten. Universität Paderborn.

Wette, P., &; Karl, H. (2012). Introducing feedback to preemptive routing and wavelength assignment algorithms for dynamic traffic scenarios. Universität Paderborn.

Dannewitz, C., &; al,  et. (2011). How to manage and Search/Retrieve Information Objects. In Architecture and Design for the Future Internet.

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Scalia, L., Biermann, T., Choi, C., Kozu, K., &; Kellerer, W. (2011). Power-efficient mobile backhaul design for CoMP support in future wireless access systems. In 2011 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS). IEEE.https://doi.org/10.1109/infcomw.2011.5928819 

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Kanter, T., Kardeby, V., Forsström, S., &; Walters, J. (2011). Scenarios, Research Issues, and Architecture for Ubiquitous Sensing. In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering (pp. 285–297). Berlin, Heidelberg: Springer Berlin Heidelberg.https://doi.org/10.1007/978-3-642-21444-8_25 

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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 

D’Ambrosio, M., Dannewitz, C., Karl, H., &; Vercellone, V. (2011). MDHT: A hierarchical name resolution service for information-centric networks. In 2011 ACM SIGCOMM Workshop on Information-Centric Networking, ICN 2011, Toronto, ON, Canada, August 19, 2011 (pp. 7--12).https://doi.org/10.1145/2018584.2018587 

Azeem M. Khan, R., &; Karl, H. (2011). Multihop Performance of Cooperative Preamble Sampling MAC(CPS-MAC) in Wireless Sensor Networks. In Ad-hoc, Mobile, and Wireless Networks - 10th International Conference, ADHOC-NOW 2011, Paderborn, Germany, July 18-20, 2011. Proceedings (pp. 145--149).https://doi.org/10.1007/978-3-642-22450-8_11 

Herlich, M., &; Karl, H. (2011). Reducing power consumption of mobile access networks with cooperation. In 2nd International Conference on Energy-Efficient Computing and Networking 2011, e-Energy ’11, New York, NY, USA - May 31 - June 01, 2011 (pp. 77--86).https://doi.org/10.1145/2318716.2318731 

Künsemöller, J., &; Karl, H. (2011). A Game-Theoretical Approach to the Benefits of Cloud Computing. In Economics of Grids, Clouds, Systems, and Services - 8th International Workshop, GECON 2011, Paphos, Cyprus, December 5, 2011, Revised Selected Papers (pp. 148--160).https://doi.org/10.1007/978-3-642-28675-9_11 

Volkhausen, T., Schinköthe, K., &; Karl, H. (2011). Coding Opportunities from Similar Data in Wireless Cooperation Diversity Systems. In IEEE 8th International Conference on Mobile Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October 17-22, 2011 (pp. 146--148).https://doi.org/10.1109/MASS.2011.126 

Biermann, T., Scalia, L., &; Karl, H. (2011). Designing optical metro and access networks for future cooperative cellular systems. In Proceedings of the 14th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2011, Miami, Florida, USA, October 31 - November 4, 2011 (pp. 265--274).https://doi.org/10.1145/2068897.2068945 

Herlich, M., &; Karl, H. (2011). The Trade-Off between Power Consumption and Latency in Computer Networks. In NETWORKING 2011 Workshops - International IFIP TC 6 Workshops, PE-CRN, NC-Pro, WCNS, and SUNSET 2011, Held at NETWORKING 2011, Valencia, Spain, May 13, 2011, Revised Selected Papers (pp. 273--280).https://doi.org/10.1007/978-3-642-23041-7_26 

Biermann, T., Scalia, L., Choi, C., Karl, H., &; Kellerer, W. (2011). Improving CoMP cluster feasibility by dynamic serving base station reassignment. In IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011, Toronto, ON, Canada, September 11-14, 2011 (pp. 1325--1330).https://doi.org/10.1109/PIMRC.2011.6139716 

Biermann, T., Scalia, L., Widmer, J., &; Karl, H. (2011). Backhaul Design and Controller Placement for Cooperative Mobile Access Networks. In Proceedings of the 73rd IEEE Vehicular Technology Conference, VTC Spring 2011, 15-18 May 2011, Budapest, Hungary (pp. 1--5).https://doi.org/10.1109/VETECS.2011.5956269 

Biermann, T., Scalia, L., Choi, C., Karl, H., &; Kellerer, W. (2011). Backhaul network pre-clustering in cooperative cellular mobile access networks. In 12th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WOWMOM 2011, Lucca, Italy, 20-24 June, 2011 (pp. 1--9).https://doi.org/10.1109/WoWMoM.2011.5986377 

Peuster, M. (2011). Defining and Deploying Complex Applicances in Multi-Site Cloud Environments. Universität Paderborn.

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 

Savori, M., Karl, H., &; Wolisz, A. (2010). Selected properties of a joint congestion controller for TCP connections. In Providing Quality of Service in Heterogeneous Environments, Proceedings of the 18th International Teletraffic Congress - ITC-18 (pp. 861–870). Elsevier.https://doi.org/10.1016/s1388-3437(03)80235-4 

Karl, H., &; MENGESHA, S. (2010). ANALYSING CAPACITY IMPROVEMENTS IN WIRELESS NETWORKS BY RELAYING. In Wireless LANs and Home Networks. WORLD SCIENTIFIC.https://doi.org/10.1142/9789812799562_0031 

Oberthür, S., Zaremba, L., &; Lichte, H. S. (2010). Flexible Resource Management for Self-X Systems: An Evaluation. In 2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops. IEEE.https://doi.org/10.1109/isorcw.2010.30 

Dannewitz, C., Golic, J., Ohlman, B., &; Ahlgren, B. (2010). Secure Naming for a Network of Information. In 2010 INFOCOM IEEE Conference on Computer Communications Workshops. IEEE.https://doi.org/10.1109/infcomw.2010.5466661 

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 

Andree, M., Gebel, A., &; Karl, H. (2010). Concept and Prototype for a Real-Time Enabled Publish/Subscribe System. In 10th IEEE International Conference on Computer and Information Technology, CIT 2010, Bradford, West Yorkshire, UK, June 29-July 1, 2010 (pp. 737--742).https://doi.org/10.1109/CIT.2010.142 

Birkenheuer, G., Brinkmann, A., &; Karl, H. (2010). Risk Aware Overbooking for Commercial Grids. In Job Scheduling Strategies for Parallel Processing - 15th International Workshop, JSSPP 2010, Atlanta, GA, USA, April 23, 2010, Revised Selected Papers (pp. 51–76).https://doi.org/10.1007/978-3-642-16505-4_4 

S. Lichte, H., Frey, H., &; Karl, H. (2010). Fading-resistant low-latency broadcasts in wireless multihop networks: the probabilistic cooperation diversity approach. In Proceedings of the 11th ACM Interational Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc 2010, Chicago, IL, USA, September 20-24, 2010 (pp. 101--110).https://doi.org/10.1145/1860093.1860108 

Biermann, T., Dannewitz, C., &; Karl, H. (2010). FIT: Future Internet Toolbox. In Testbeds and Research Infrastructures. Development of Networks and Communities - 6th International ICST Conference, TridentCom 2010, Berlin, Germany, May 18-20, 2010, Revised Selected Papers (pp. 442--453).https://doi.org/10.1007/978-3-642-17851-1_34 

Dannewitz, C., Biermann, T., Dräxler, M., Beister, F., &; Karl, H. (2010). Prototyping with the Future Internet Toolbox. In Testbeds and Research Infrastructures. Development of Networks and Communities - 6th International ICST Conference, TridentCom 2010, Berlin, Germany, May 18-20, 2010, Revised Selected Papers (pp. 609--611).https://doi.org/10.1007/978-3-642-17851-1_56 

Miller, K., Biermann, T., Woesner, H., &; Karl, H. (2010). Network coding in passive optical networks. In Network Coding (NetCod), 2010 IEEE International Symposium on (pp. 1--6).

Lischka, J., &; Karl, H. (2010). RiaS: overlay topology creation on a PlanetLab infrastructure. In Proceedings of the second ACM SIGCOMM workshop on Virtualized infrastructure systems and architectures (pp. 9--16).

Woldegebreal, D. H., &; Karl, H. (2010). Energy efficiency model of network-coded cooperation in wireless sensor networks. In Sensor Technologies and Applications (SENSORCOMM), 2010 Fourth International Conference on (pp. 513--520).

Khan, R. A. M., &; Karl, H. (2010). Cooperative communication to improve reliability and efficient neighborhood wakeup in wireless sensor networks. In Proceedings of the Fourth International Conference on Mobile Ubiquitous Computing (UBICOMM 2010).

Volkhausen, T., Woldegebreal, D. H., &; Karl, H. (2009). Improving Network Coded Cooperation by Soft Information. In 2009 6th IEEE Annual Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks Workshops. IEEE.https://doi.org/10.1109/sahcnw.2009.5172938 

Valentin, S., Woldegebreal, D. H., Volkhausen, T., &; Karl, H. (2009). Combining for Cooperative WLANs - A Reality Check Based on Prototype Measurements. In 2009 IEEE International Conference on Communications Workshops. IEEE.https://doi.org/10.1109/iccw.2009.5208050 

Biermann, T., Schwabe, A., &; Karl, H. (2009). Creating Butterflies in the Core – A Network Coding Extension for MPLS/RSVP-TE. In NETWORKING 2009 (pp. 883–894). Berlin, Heidelberg: Springer Berlin Heidelberg.https://doi.org/10.1007/978-3-642-01399-7_69 

Lichte, H. S., &; Weide, J. (2009). Modeling obstacles in INET/Mobility framework: motivation, integration, and performance. In Proceedings of the Second International ICST Conference on Simulation Tools and Techniques. ICST.https://doi.org/10.4108/icst.simutools2009.5680 

Ahlgren, B., Vercellone, V., D’Ambrosio, M., Marchisio, M., Marsh, I., Dannewitz, C.,https://doi.org/10.1145/1544012.1544078__Rembarz, R. (2009). Design considerations for a network of information. In Proceedings of the 2008 ACM CoNEXT Conference on - CONEXT ’08. ACM Press.https://doi.org/10.1145/1544012.1544078 

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 

Biermann, T., Dannewitz, C., &; Karl, H. (2009). An Adaptive Resource/Performance Trade-Off for Resolving Complex Queries in P Networks. In Proceedings of IEEE International Conference on Communications, ICC 2009, Dresden, Germany, 14-18 June 2009 (pp. 1--6).https://doi.org/10.1109/ICC.2009.5198716 

S. Lichte, H., Valentin, S., von Malm, H., Karl, H., Bin Sediq, A., &; Aad, I. (2009). Rate-Per-Link Adaptation in Cooperative Wireless Networks with Multi-Rate Combining. In Proceedings of IEEE International Conference on Communications, ICC 2009, Dresden, Germany, 14-18 June 2009 (pp. 1--6).https://doi.org/10.1109/ICC.2009.5199393 

Birkenheuer, G., Brinkmann, A., &; Karl, H. (2009). The Gain of Overbooking. In Job Scheduling Strategies for Parallel Processing, 14th International Workshop, JSSPP 2009, Rome, Italy, May 29, 2009. Revised Papers (pp. 80–100).https://doi.org/10.1007/978-3-642-04633-9_5 

Simon Lichte, H., Valentin, S., Karl, H., Aad, I., &; Widmer, J. (2009). Analyzing space/capacity tradeoffs of cooperative wireless networks using a probabilistic model of interference. In Proceedings of the 12th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2009, Tenerife, Canary Islands, Spain, October 26-19, 2009 (pp. 54--62).https://doi.org/10.1145/1641804.1641817 

Biermann, T., Schwabe, A., &; Karl, H. (2009). Creating Butterflies in the Core - A Network Coding Extension for MPLS/RSVP-TE. In NETWORKING 2009, 8th International IFIP-TC 6 Networking Conference, Aachen, Germany, May 11-15, 2009. Proceedings (pp. 883--894).https://doi.org/10.1007/978-3-642-01399-7_69 

Lischka, J., &; Karl, H. (2009). A virtual network mapping algorithm based on subgraph isomorphism detection. In Proceedings of the 1st ACM SIGCOMM Workshop on Virtualized Infrastructure Systems and Architectures, VISA 2009, Barcelona, Spain, August 17, 2009 (pp. 81--88).https://doi.org/10.1145/1592648.1592662 

Biermann, T., Polgar, Z. A., &; Karl, H. (2009). Cooperation and coding framework. In Communications Workshops, 2009. ICC Workshops 2009. IEEE International Conference on (pp. 1--5).

Valentin, S., Woldegebreal, D. H., Volkhausen, T., &; Karl, H. (2009). Combining for cooperative WLANs-a reality check based on prototype measurements. In Communications Workshops, 2009. ICC Workshops 2009. IEEE International Conference on (pp. 1--5).

Volkhausen, T., Woldegebreal, D. H., &; Karl, H. (2009). Improving network coded cooperation by soft information. In Sensor, Mesh and Ad Hoc Communications and Networks Workshops, 2009. SECON Workshops’ 09. 6th Annual IEEE Communications Society Conference on (pp. 1--6).

Warneke, D., &; Dannewitz, C. (2009). Statistics-based ID management for load balancing in structured P networks. In 2009 IEEE 34th Conference on Local Computer Networks. IEEE.https://doi.org/10.1109/lcn.2009.5355086 

Biermann, T., Dannewitz, C., &; Karl, H. (2008). Extended Results on an Adaptive Resource/Performance Trade-Off for Resolving Complex Queries in P Networks.

Brinkmann, A., Gudenkauf, S., Hasselbring, W., Höing, A., Karl, H., Kao, O.,  Scherp, G. (2008). Employing WS-BPEL Design Patterns for Grid Service Orchestration using a Standard WS-BPEL Engine and a Grid Middleware. In Proc. Cracow Grid Workshop (CGW) (pp. 103–110).

Brinkmann, A., &; Karl, H. (Eds.). (2008). Proceedings of the 1. GI/ITG KuVS Fachgespräch Virtualisierung. Paderborn Center for Parallel Computing, Paderborn University.

Valentin, S., Lichte, H. S., Warneke, D., Biermann, T., Funke, R., &; Karl, H. (2008). Mobile Cooperative WLANs - MAC and Transceiver Design, Prototyping, and Field Measurements. In 2008 IEEE 68th Vehicular Technology Conference. IEEE.https://doi.org/10.1109/vetecf.2008.350 

Valentin, S., Freitag, T., &; Karl, H. (2008). Integrating Multiuser Dynamic OFDMA into IEEE 802.11 WLANs - LLC/MAC Extensions and System Performance. In 2008 IEEE International Conference on Communications. IEEE.https://doi.org/10.1109/icc.2008.626 

Woldegebreal, D. H., &; Karl, H. (2008). Network-Coding-Based Cooperative Transmission in Wireless Sensor Networks: Diversity-Multiplexing Tradeoff and Coverage Area Extension. In Lecture Notes in Computer Science (pp. 141–155). Berlin, Heidelberg: Springer Berlin Heidelberg.https://doi.org/10.1007/978-3-540-77690-1_9 

H. Woldegebreal, D., &; Karl, H. (2008). Network-Coding-Based Cooperative Transmission in Wireless Sensor Networks: Diversity-Multiplexing Tradeoff and Coverage Area Extension. In Wireless Sensor Networks, 5th European Conference, EWSN 2008, Bologna, Italy, January 30-February 1, 2008, Proceedings (pp. 141--155).https://doi.org/10.1007/978-3-540-77690-1_9 

Valentin, S., Freitag, T., &; Karl, H. (2008). Integrating Multiuser Dynamic OFDMA into IEEE 802.11 WLANs - LLC/MAC Extensions and System Performance. In Proceedings of IEEE International Conference on Communications, ICC 2008, Beijing, China, 19-23 May 2008 (pp. 3328--3334).https://doi.org/10.1109/ICC.2008.626 

S. Lichte, H., Valentin, S., Karl, H., Aad, I., Loyola, L., &; Widmer, J. (2008). Design and Evaluation of a Routing-Informed Cooperative MAC Protocol for Ad Hoc Networks. In 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 (pp. 1858--1866).https://doi.org/10.1109/INFOCOM.2008.249 

Valentin, S., S. Lichte, H., Karl, H., Aad, I., Loyola, L., &; Widmer, J. (2008). Opportunistic relaying vs. selective cooperation: analyzing the occurrence-conditioned outage capacity. In 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 (pp. 193--202).https://doi.org/10.1145/1454503.1454539 

Valentin, S., Volkhausen, T., Atay Onat, F., Yanikomeroglu, H., &; Karl, H. (2008). Decoding-based channel estimation for selective cooperation diversity protocols. In Proceedings of the IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008, 15-18 September 2008, Cannes, French Riviera, France (pp. 1--6).https://doi.org/10.1109/PIMRC.2008.4699545 

Valentin, S., S. Lichte, H., Warneke, D., Biermann, T., Funke, R., &; Karl, H. (2008). Mobile Cooperative WLANs - MAC and Transceiver Design, Prototyping, and Field Measurements. In Proceedings of the 68th IEEE Vehicular Technology Conference, VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada (pp. 1--5).https://doi.org/10.1109/VETECF.2008.350 

H. Woldegebreal, D., Valentin, S., &; Karl, H. (2008). Incremental Network Coding in Cooperative Transmission Wireless Networks. In Proceedings of the 68th IEEE Vehicular Technology Conference, VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada (pp. 1--5).https://doi.org/10.1109/VETECF.2008.346 

Platz, D., Woldegebreal, D. H., &; Karl, H. (2008). Random network coding in wireless sensor networks: Energy efficiency via cross-layer approach. In Spread Spectrum Techniques and Applications, 2008 IEEE 10th International Symposium on (pp. 654--660).

Valentin, S., Volkhausen, T., Onat, F. A., Yanikomeroglu, H., &; Karl, H. (2008). Enabling partial forwarding by decoding-based one and two-stage selective cooperation. In Communications Workshops, 2008. ICC Workshops’ 08. IEEE International Conference on (pp. 129--133).

Eitzen, F., Valentin, S., Gossens, K., Karl, H., &; Rolfes, O. (2007). Experimental evaluation of IEEE 802.11a-based WLANs for medium range communication.

Woldegebreal, D. H., &; Karl, H. (2007). Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay Channels. In 2007 4th International Symposium on Wireless Communication Systems. IEEE.https://doi.org/10.1109/iswcs.2007.4392437 

Karl, H. (2007). Optimizing sleeping intervals in preamble sampling MAC for WSNs. Bern / Switzerland: Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference.

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 

van der Stok, P., Karl, H., De Ambroggi, F., Decotignie, J., Siegemund, F., Lokhorst, K., &; Hellenschmidt, M. (2007). WASP - Wirelessly Accessible Sensor Populations: A Project Overview. In Constructing Ambient Intelligence - AmI 2007 Workshops Darmstadt, Germany, November 7-10, 2007 Revised Papers (pp. 426--429).https://doi.org/10.1007/978-3-540-85379-4_49 

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