olumbia, Canada Sureswaran Ramadass National Advanced IPv6 Center Chao Liu University of Science, Malaysia Yahoo! Inc. Penang, Malaysia Sunnyvale, California Sergio Rapuano Thomas Magedanz Department of Engineering Technical University of Berlin University of Sannio Berlin, Germany Benevento, Italy G. F. Marias Yacine Rebahi Athens University of Economics and Fraunhofer Institute for Business Open Communication Systems Athens, Greece Berlin, Germany C 2009 by Taylor & Francis Group, LLC Contributors Andre Rios Laura Tomaciello Polytechnic University of Catalonia Department of Engineering Barcelona, Spain University of Sannio Benevento, Italy Fulvio Risso Livio Torrero Department of Control and Computer Engineering Department of Control and Technical University of Turin Computer Engineering Turin, Italy Technical University of Turin Turin, Italy Sebastia Sallent Julián Villegas i2CAT Foundation Spatial Media Group Barcelona, Spain University of Aizu Aizu-Wakamatsu, Japan Holger Schmidt Institute of Distributed Systems Matthias Wählisch Ulm University Department of Computer Sciences Ulm, Germany Hamburg University of Applied Sciences Hamburg, Germany Thomas C. Schmidt Department of Computer Sciences Huaxu Wan Hamburg University of Applied School of Information Science and Sciences Engineering Hamburg, Germany Graduate University of Chinese Academy of Sciences Dorgham Sisalem Beijing, People's Republic of China Tekelec Berlin, Germany Xiaolei Wang Department of Electrical and J. Soupionis Computer Engineering Athens University of Economics and The University of British Columbia Business Vancouver, British Columbia, Canada Athens, Greece F. Richard Yu GuiPing Su School of Information Technology Graduate University of Chinese Carleton University Academy of Sciences Ottawa, Ontario, Canada Beijing, People's Republic of China Bo Zhao M. Theoharidou Department of Computer Science Athens University of Economics and and Engineering Business The Pennsylvania State University Athens, Greece University Park, Pennsylvania © 20