吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (2): 502-507.doi: 10.13229/j.cnki.jdxbgxb201402036

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Improved DV-Hop localization algorithm based on two communication ranges for wireless sensor network

LI Juan1, LIU Yu1, QIAN Zhi-hong1, LU Chang-gang2   

  1. 1. College of Communication Engineering, Jilin University, Changchun 130022, China;
    2. College of Automotive Engineering Jilin University, Changchun 130022, China
  • Received:2013-02-01 Online:2014-02-01 Published:2014-02-01

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Abstract:

Traditional DV-Hop algorithm can cause greater positioning errors. To overcome such problem, the traditional DV-Hop algorithm was analyzed and simulated, and two factors affecting positioning accurate were acquired. Then an improved positioning algorithm was proposed. Two communication ranges were used by beacon during localization. Using this method more accurate hops between beacon and unknown node can be gotten and the estimating distances between beacon and unknown node are close to real distances. Numerous simulation results show that the relative positioning error of the improved algorithm is 13% to 15% less than that of traditional DV-Hop algorithm. Moreover, the differences of positioning errors in different network topologies are decreased by using this improved algorithm.

Key words: communication technology, wireless sensor networks, localization, DV-Hop algorithm, improved algorithm

CLC Number: 

  • TN915

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