Fault-tolerant topology in the wireless sensor networks for energy depletion and random failure

doi:10.1088/1674-1056/23/7/070510

Abstract Nodes in the wireless sensor networks (WSNs) are prone to failure due to energy depletion and poor environment, which could have a negative impact on the normal operation of the network. In order to solve this problem, in this paper, we build a fault-tolerant topology which can effectively tolerate energy depletion and random failure. Firstly, a comprehensive failure model about energy depletion and random failure is established. Then an improved evolution model is presented to generate a fault-tolerant topology, and the degree distribution of the topology can be adjusted. Finally, the relation between the degree distribution and the topological fault tolerance is analyzed, and the optimal value of evolution model parameter is obtained. Then the target fault-tolerant topology which can effectively tolerate energy depletion and random failure is obtained. The performances of the new fault tolerant topology are verified by simulation experiments. The results show that the new fault tolerant topology effectively prolongs the network lifetime and has strong fault tolerance.

Keywords: wireless sensor networks fault tolerant topology energy depletion random failure

Received: 25 November 2013
Revised: 03 January 2014
Accepted manuscript online:

PACS:	05.65.+b	(Self-organized systems)
	05.70.Np	(Interface and surface thermodynamics)

Fund: Project supported by the Natural Science Foundation of Hebei Province, China (Grant Nos. F2012203179 and F2014203239).

Corresponding Authors: Dong Ming-Ru
E-mail: dmr785573435@163.com

About author: 05.65.+b; 05.70.Np

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Liu Bin (刘彬), Dong Ming-Ru (董明如), Yin Rong-Rong (尹荣荣), Yin Wen-Xiao (尹文晓) Fault-tolerant topology in the wireless sensor networks for energy depletion and random failure 2014 Chin. Phys. B 23 070510

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Fault-tolerant topology in the wireless sensor networks for energy depletion and random failure

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