A Multicast Network Architecture for Large Scale Collaborative Virtual Environments

摘要: This paper introduces a multicast based architecture for supporting large scale Collaborative Virtual Environments (CVEs). The begins by defining CVEs, discussing the motivations behind their development and identifying some of key challenges that they pose to network developers. then reviews so-called spatial model interaction which defines number general mechanisms (awareness, focus, nimbus third party objects) structuring virtual worlds managing mutual awareness between inhabitants. Finally, shows how this may be mapped onto an underlying new techniques membership groups introducing aggregated flows information different levels hierarchy.