Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2014, Vol. 37 ›› Issue (2): 74-78.doi: 10.13190/j.jbupt.2014.02.016

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Cascading Failure Researchon Scale-Free Fault Tolerant Topology in Wireless Sensor Networks

LI Ya-qian1, YIN Rong-rong1, LIU Bin1, LIU Hao-ran2   

  1. 1. School of Electrical Engineering, Yanshan University, Hebei Qinhuangdao, China;
    2. The Key Laboratory for Special Fiber Sensor of Hebei Province, Yanshan University, Hebei Qinhuangdao, China
  • Received:2013-07-12 Online:2014-04-28 Published:2014-04-08

Abstract:

In view of cascading failure problem of scale-free fault tolerant topology in wireless sensor networks, the scale of cascading failure caused from one random fault node is deduced based on the probability generating function. The critical load value of the cascading failure is discovered under the condition of power function load distribution. The research result shows that a random fault node will cause cascading failure of the entire network when the load parameter exceeds its critical value. Simulations verify the correctness of the analytical derivation.

Key words: wireless sensor networks, fault tolerant topology, scale-free structure, cascading failure, critical load

CLC Number: