Support for Mobile Augmented and Synthesized Worlds

Virtual worlds provide 3D-immersive experiences to users and some of them already have already launched commercial service to users. As computing environment becomes more heterogeneous, more mobile users are anticipated to access the virtual world with their mobile devices. However, still there are challenges and problems to be addressed for mobile users. In this report, state-of-art virtual world platforms are presented and their key features are compared. We compare possible approaches to tackle these problems to support virtual worlds for mobile devices. Transcoding scheme at the proxy is presented and evaluated for a given computing and networking environment.