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Algorithm of Failure Sensor Node Detection Based on Round Trip Time in Wireless Sensor Network

  

  1. (Combat Teaching and Research Section, PLA Academy of National Defense Information, Wuhan 430013, China)
  • Received:2016-01-15 Online:2016-08-18 Published:2016-08-11

Abstract: One of important reasons for the decline of QoS in wireless sensor network is the failure of sensor nodes. We propose an algorithm to detect failure node based on round trip time. Discrete method is used to generate the round trip path and the failure sensor nodes are detected and located by measuring the round trip time of the path. By physical simulation and software simulation, we verify the applicability of the algorithm. Compared with the methods of linear round trip path, the discrete method could reduce the number of paths measured and shorten the time of detection.

Key words: wireless sensor network, quality of service, failure sensor node, round trip path, round trip time

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