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yi zhong wsn fei ce ju ding wei dv-hop suan fa de wu cha gai jin fang fa
Author(s): 
Pages: 1357-1359
Year: Issue:  5
Journal: Computer Measurement & Control

Keyword:  wireless sensor networks(WSN)node localizationerror correctionaverage hop distance;
Abstract: 为了提高DV-Hop定位算法的定位精度,在分析该算法误差的基础上,提出了一种基于平均跳距修正的改进DV-Hop节点定位算法;改进后的算法利用锚节点的实际距离与估计距离之间存在的偏差,对DV-Hop算法中的平均跳距值进行调整,使得锚节点与需要定位的节点之间的距离误差变小,并且利用最小二乘法的递推算法对节点的坐标位置进行了优化,最终计算出的节点坐标更加精确;仿真结果表明,改进算法和传统DV-Hop相比,定位精度有了明显的提高,并且算法的鲁棒性较好。
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