Maximising Concurrency and Scalability in a Consistent, Causal, Distributed Virtual Reality System Whilst Minimising the Effect of Network Delays

Authors:
David J. Roberts;Paul M. Sharkey
Affiliations:
-;-
Venue:
WET-ICE '97 Proceedings of the 6th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises
Year:
1997

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Abstract

Abstract: The development of large scale virtual reality and simulation systems have been mostly driven by the DIS and HLA standards community. A number of issues are coming to light about the applicability of these standards, in their present state, to the support of general multi-user VR systems. This paper pinpoints four issues that must be readdressed before large scale virtual reality systems become accessible to a larger commercial and public domain: a reduction in the effects of network delays; scalable causal event delivery; update control; and scalable reliable communication. Each of these issues is tackled through a common theme of combining wall clock and causal time-related entity behaviour, knowledge of network delays and prediction of entity behaviour, that together overcome many of the effects of network delays.