Journal on Communications ›› 2015, Vol. 36 ›› Issue (2): 38-47.doi: 10.11959/j.issn.1000-436x.2015032

• Academic papers • Previous Articles     Next Articles

Node localization scheme in wireless sensor networks under beacon drifting scenes

Xiao-min ZHAO,Hai-yang ZHANG,Yan JIN,Qing-zhang CHEN   

  1. Department of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China
  • Online:2015-02-25 Published:2017-06-27
  • Supported by:
    The National Natural Science Foundation of China;The Natural Science Foundation of Zhejiang Province

Abstract:

Due to the accidentally position change of the beacons in wireless sensor networks,a distributed detecting mechanism of drifting beacon nodes is introduced based on self-scoring and consultation,therefore the drifting beacon nodes can be detected automatically.After studying the current node localization methods,an improved localization method is introduced against the localization coverage decreasing situation caused by beacon nodes drifting.A credibility model of the normal node localization method is built,and it is used as a basis to upgrade normal nodes as temporary beacon nodes in localization blind areas.Simulation results show that the performance of this algorithm is superior to other traditional algorithms in error detection rate,positioning error and communication cost aspects,and this algorithm has higher practicability and flexibility.

Key words: wireless sensor network, node localization, drifting beacon node, localization blind area

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