Cached Sensornet Transformation of Non-silent Self-stabilizing Algorithms with Unreliable Links

  • Authors:
  • Hirotsugu Kakugawa;Yukiko Yamauchi;Sayaka Kamei;Toshimitsu Masuzawa

  • Affiliations:
  • Osaka University, Osaka, Japan;Nara Institute of Science and Technology, Nara, Japan;Hiroshima University, Hiroshima, Japan;Osaka University, Osaka, Japan

  • Venue:
  • SSS '09 Proceedings of the 11th International Symposium on Stabilization, Safety, and Security of Distributed Systems
  • Year:
  • 2009

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Abstract

A wireless sensor network is a set of nodes, each is equipped with sensors and a wireless communication device. Cached Sensornet Transform (CST for short) is a methodology for design and implementation of self-stabilizing algorithms for sensor networks. It transforms a self-stabilizing algorithm in the abstract computational model to a program for sensor networks. In the literature, only CST transformation of silent self-stabilizing algorithms have been investigated, while non-silent ones have not been investigated. Our contribution in this paper is threefold. We present a counterexample of a non-silent algorithm transformed by CST that does not behave correctly despite the original algorithm is correct. We show a sufficient condition for original algorithms and networks such that a transformed algorithm by CST behaves correctly. We present a token circulation algorithm that behaves correctly by CST, and derive upper bound of its expected convergence time.