An auto-adaptive dead reckoning algorithm for distributed interactive simulation

  • Authors:
  • Wentong Cai;Francis B. S. Lee;L. Chen

  • Affiliations:
  • School of Applied Science, Nanyang Technological University, Nanyang Avenue, Singapore 639798;School of Applied Science, Nanyang Technological University, Nanyang Avenue, Singapore 639798;School of Applied Science, Nanyang Technological University, Nanyang Avenue, Singapore 639798

  • Venue:
  • PADS '99 Proceedings of the thirteenth workshop on Parallel and distributed simulation
  • Year:
  • 1999

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Abstract

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.