Real time groupware as a distributed system: concurrency control and its effect on the interface
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Using spatial techniques to decrease message passing in a distributed VE system
VRML '97 Proceedings of the second symposium on Virtual reality modeling language
Responsiveness and consistency tradeoffs in interactive groupware
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
Interactive Multiuser VEs in the DIVE System
IEEE MultiMedia
A Taxonomy for Networked Virtual Environments
IEEE MultiMedia
Design of the Interactive Sharing Transfer Protocol
WET-ICE '97 Proceedings of the 6th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises
WET-ICE '97 Proceedings of the 6th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises
VR '99 Proceedings of the IEEE Virtual Reality
Issues in the design of a scalable shared virtual environment for the Internet
HICSS '97 Proceedings of the 30th Hawaii International Conference on System Sciences: Software Technology and Architecture - Volume 1
VRST '00 Proceedings of the ACM symposium on Virtual reality software and technology
VRST '01 Proceedings of the ACM symposium on Virtual reality software and technology
ATLAS: a scalable network framework for distributed virtual environments
Proceedings of the 4th international conference on Collaborative virtual environments
What online gamers really think of the Internet?
NetGames '03 Proceedings of the 2nd workshop on Network and system support for games
Presence: Teleoperators and Virtual Environments - Special issue: Advances in collaborative virtual environments
ATLAS: A Scalable Network Framework for Distributed Virtual Environments
Presence: Teleoperators and Virtual Environments
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Replication is often used to provide the users of distributed virtual environments with high performance interactions. Concurrency control is required to avoid inconsistency views among replicas due to multiple concurrent updates. The prediction based concurrency control scheme has been developed to allow real time interactions for users and eliminate the need for repairs. The existing scheme does not scale in terms of delivering an ownership on time as the number of users increases.In this paper we propose a scalable prediction based concurrency control scheme with an entity-centric multicast: only the users surrounding a target entity do multicast the ownership requests by using the multicast address assigned to the entity. The experimental results and analysis show that the proposed scheme achieves the benefits of prediction based concurrency control with efficiency and scalability for large distributed virtual environments.