International Conference on Data Communication Networking (Dcnet) / Optical Communication System (Optics), Date: JUL 18-21, 2011, Location: ETSII Univ Seville, Seville, SPAIN, Sponsors: Inst Syst & Technologies Informat Control & Commun, Inst Elect & Elect Engineers, IEEE Syst Council, Inst Elect Informat & Commun Engineers, Special Grp Software Interprise Modelling, Asoc Tecnicos Informatica, Council European Profess Informat Soc, Fundac Investigac Desarollo Tecnologias Informac Andalucia, Iniciativa Espanola Software Servicios, Int Assoc Cryptolog Res, ACM Special Interest Grp Secur Audit & Control, ACM Special Interest Grp Multimedia, ACM Special Interest Grp Management Informat Syst, Japanese Inst Elect, Informat & Commun Engineers, Host: ETSII Univ Seville