A New Algorithm for Resolving Segregation in Hierarchical Conference

Abstract

In ubiquitous environment, people can communicate with others and have access to various computing services any time, any place. The multipoint conference systems in ubiquitousn environment are expected to be one of the leading applications to connect people. Even though a hierarchical multipoint conference system using the endpoint mixing scheme works effectively in ubiquitous environment, a participant leaving a conference session may divide the session into pieces depending on where the leaving participant is located in the hierarchy. A solution proposed previously for this may result in reducing conference session duration since parent nodes, which usually consume more power than leaf nodes, become again parent nodes while the connections are reconfigured to maintain the session. The article proposes a new scheme which prolongs the session duration when a user leave a conference group, compared with the earlier scheme.