Information Networking. Towards Ubiquitous Networking and Services Computer Communication Networks and Telecommunications : Springer : 9783540895237 : 354089523X : 13 Nov 2008 : This volume contains the set of revised selected papers presented at the 21st International Conference on Information Networking (ICOIN 2007), which was held in Estoril, Portugal, January 23?25, 2007. The conference series started under the name of Joint Workshop on Computer Communications, in 1986. At that time, it constituted a technical meeting for researchersand engineers on - ternet technologies in East Asian countries, where several technical networking issues were discussed. In 1993, the meeting was reorganized as an international conference known as ICOIN. Recent conferences were held in Sendai, Japan (2006),Jeju,Korea(2005),Pusan,Korea(2004),Jeju,Korea(2003),Jeju,Korea (2002), Beppu City, Japan (2001), Hsin-chu, Taiwan (2000), and Tokyo, Japan (1999). In 2007, for the ?rst time since its creation, ICOI