Title :
Preserving Consistency Based on Wall-Time Precedence in P2P DVEs
Author :
Gao, Liping ; Gu, Ning
Author_Institution :
Fudan Univ., Shanghai
Abstract :
Based on the analysis of the work mode of peer-to-peer (P2P) distributed virtual environments (DVEs), the paper proposes the ideal and relaxed consistency model, and introduces wall-time as the basis of the precedence order. Then the status-retrace algorithm based on wall-time precedence is proposed to realize the synchronization of parallel actions from local and remote sites. Quick-response-wins strategy is introduced to process the wall-time conflict operations and direct precedence, causal precedence based on logical time is also inducted to repair visual confusion caused by status-retrace method. The contrast experiments show the advantages of the newly developed algorithm in highly concurrent environment.
Keywords :
peer-to-peer computing; virtual reality; P2P DVE; causal precedence; concurrent environment; peer-to-peer distributed virtual environments; quick-response-wins strategy; status-retrace algorithm; wall-time precedence; Algorithm design and analysis; Automatic control; Avatars; Delay; Fires; Information technology; Peer to peer computing; Virtual environment; Virtual reality;
Conference_Titel :
Computer and Information Technology, 2007. CIT 2007. 7th IEEE International Conference on
Conference_Location :
Aizu-Wakamatsu, Fukushima
Print_ISBN :
978-0-7695-2983-7
DOI :
10.1109/CIT.2007.11
