The Impact of Avatar Mobility on Distributed Server Assignment for Delivering Mobile Immersive Communication Environment

In our previous work, we proposed a distributed server architecture to deliver multi-party immersive voice communication service to mobile clients (e.g. Sony PSP) accessing a Distributed Virtual Environment (DVE). We refer to such immersive voice communication service as Mobile Immersive Communication Environment (MICE). We also proposed solutions to assign server to create the auditory scene for each avatar. In this work, we ascertain the necessary update period of server reassignment in order to cope with avatar mobility in the virtual world. In our simulations, we measure the percentage differences in delay deviation and bandwidth cost between the case of no server reassignment update since t=1 second (the initial time instant) and the case of ideal server reassignment at every second. Our results show that the impact of avatar mobility leads to increases in both delay deviation and bandwidth cost as the time elapse further from t=1 second. Such increase in delay deviation and bandw...

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Ying Peng Que, Farzad Safaei, Paul Boustead
• Keywords: Communications, Delay Deviation, ICC 2007, Immersive Voice Communication, Server Reassignment