National Natural Science Foundation of China (No.60903159, No.61173153);Fundamental Research Funds for the Central Universities (No.110818001, No.100218001, No.110404014, No.110318001);Shenyang Science and Technology Plan Project (No.1091176-1-00);China Postdoctoral Science Foundation (No.20110491508, No.2012T50248)
DOI:
CLC:TP393
Published:2014
稿件说明:
移动端阅览
MENG Ying-hui, CHEN Jian, WEN Ying-you, et al. Two-Stage Localization Algorithm Based on Greedy Idea for Wireless Sensor Networks[J]. Acta Electronica Sinica, 2014, 42(2): 328-334.
DOI:
MENG Ying-hui, CHEN Jian, WEN Ying-you, et al. Two-Stage Localization Algorithm Based on Greedy Idea for Wireless Sensor Networks[J]. Acta Electronica Sinica, 2014, 42(2): 328-334.DOI:
Two-Stage Localization Algorithm Based on Greedy Idea for Wireless Sensor Networks
Using optimization algorithm to solve the node localization problem has become a research focus.This paper makes deep analysis on the distance relationship between two successive localization results and designs a neighborhood function
and then proposes the greedy localization algorithm based on greedy idea.The proposed algorithm is divided into two phases.In the first phase
a set of estimated positions is generated based on the greedy iterative optimization.In the second phase
some unknown nodes will be elevated to anchor nodes
and the first phase is executed again.The second phase is repeated until there is no node that can be elevated to an anchor node.Finally
the experimental results show the proposed algorithm achieves more accurate result and take less time than the existing optimization localization algorithms.