指挥控制与仿真Issue(5)：35-38,48,5.DOI:10.3969/j.issn.1673-3819.2014.05.008
无线传感器网络DV-Hop节点定位改进算法
Improved DV-Hop Localization Algorithm for Wireless Sensor Networks
摘要
Abstract
Range-free localization algorithm for wireless sensor networks has big location error. To solve this problem, a modified DV-Hop localization algorithm is proposed. The location cumulative error is decreased by setting a minimum thresh-old of the hops form unknown node to anchor node. The estimation method of average one-hop distance is improved. Further-more, the location error measured by anchor node can be used to modify the estimation of one-hop distance. The unknown node only chooses the anchor nodes near to it to calculate its location. The simulation results show that the modified algorithm outperforms DV-Hop algorithm in the same anchor fraction and number of nodes in the network.关键词
无线传感器网络/节点定位/定位算法/DV-HopKey words
wireless sensor networks/node localization/localization algorithm/DV-Hop分类
军事科技引用本文复制引用
刘志坤,刘洋,刘忠,杨露菁..无线传感器网络DV-Hop节点定位改进算法[J].指挥控制与仿真,2014,(5):35-38,48,5.基金项目
十二五国防科技预研项目；海军工程大学自然科学基金 （）
