s University of Economic and Business Johan Fredrik Juell Athens, Greece Telio Telecom AS Oslo, Norway S. Ehlert Fraunhofer Institute for Open Young-Chul Jung Communication Systems Department of Information Berlin, Germany and Communication Engineering Dimitris Geneiatakis Yeungnam University Department of Information and Gyeongsan, South Korea Communication Systems Engineering Georgios Kambourakis University of the Aegean Department of Information and Karlovassi, Greece Communication Systems Engineering Tudor Golubenco University of the Aegean Iptego Karlovassi, Greece Berlin, Germany L. Kazatzopoulos D. Gritzalis Athens University of Economics and Athens University of Economics and Business Business Athens, Greece Athens, Greece Joud Khoury Franz J. Hauck Electrical and Computer Institute of Distributed Systems Engineering Department Ulm University The University of New Mexico Ulm, Germany Albuquerque, New Mexico C 2009 by Taylor & Francis Group, LLC Contributors Young-Tak Kim L. Mitrou Department of Information Department of Information and and Communication Communication Systems Engineering Engineering Yeungnam University University of the Aegean Gyeongsan, South Korea Karlovassi, Greece Naoko Kuri Yukikazu Nakamoto Graduate School of Applied Graduate School of Applied Informatics Informatics University of Hyogo University of Hyogo Kakogawa, Japan Kakogawa, Japan Costas Lambrinoudakis Wei Ning Department of Information and School of Information Science and Communication Systems Engineering Engineering Northeastern University University of the Aegean Shenyang, People's Republic of Karlovassi, Greece China Chao-Hsien Lee Yoann Noisette Department of Medical Information CORE/M2V Management France Telecom Kaohsiung Medical University Caen, France Kaohsiung, Taiwan, Republic of Antoni Oller China Polytechnic University of Catalonia Victor C.M. Leung Barcelona, Spain Department of Electrical and Benjamin Pannier Computer Engineering eleven GmbH The University of British Columbia Berlin, Germany Vancouver, British C