Proceedings Thirteenth Workshop on Parallel and Distributed Simulation. PADS 99. (Cat. No.PR00155) (1999)
May 1, 1999 to May 4, 1999
Wentong Cai , Nanyang Technological University
Francis B.S. Lee , Nanyang Technological University
L. Chen , Nanyang Technological University
This paper describes a new, auto-adaptive algorithm for dead reckoning in DIS. In general dead-reckoning algorithms use a fixed threshold to control the extrapolation errors. Since a fixed threshold cannot adequately handle the dynamic relationships between moving entities, a multi-level threshold scheme is proposed. The definition of threshold levels is based on the concepts of area of interest (AOI) and sensitive region (SR), and the levels of threshold are adaptively adjusted based on the relative distance between entities during the simulation. Various experiments were conducted. The results show that the proposed auto-adaptive dead reckoning algorithm can achieve considerable reduction in update packets without sacrificing accuracy in extrapolation.
Distributed Interactive Simulation (DIS), Dead Reckoning, Relevance Filtering, Extrapolation, Area of Interest (AOI), Sensitive Region (SR), Multi-level Threshold, Adaptive Algorithm.
F. B. Lee, L. Chen and W. Cai, "An Auto-Adaptive Dead Reckoning Algorithm for Distributed Interactive Simulation," Proceedings Thirteenth Workshop on Parallel and Distributed Simulation. PADS 99. (Cat. No.PR00155)(PADS), Atlanta, Georgia, 1999, pp. 82.