传感技术学报Issue(7)：964-969,6.DOI:10.3969/j.issn.1004-1699.2014.07.019
基于跳数区域划分的DV-Hop改进算法
Improved DV-Hop Algorithm Based on Regional Division of Hop Count
摘要
Abstract
DV-Hop node localization algorithm uses the hop count multiplied by the average per hop distance to estimate the distance between nodes. The accuracy of estimation is related to the topology of the network,the node density and the node communication radius parameters. Aiming at the defect existing in DV-Hop algorithm process, and in order to reduce the positioning error as well,this paper puts forward the improved DV-hop algorithm based on regional division of hop count. The RSSI location technology and the hop-limitation mechanism was introduced,the combination of the beacon nodes optimized, the three-sided measurement adopted several times, and finally, the centroid method used to determine the coordinates of the unknown nodes. The MATLAB simulation tests show that this improved algorithm,compared with other algorithms,can effectively reduce the positioning error and improve the positioning accuracy in the same environment.关键词
无线传感器网络/定位/节点定位/限跳/跳数区域Key words
wireless sensor network/location/node localization/limit hop/region of hop count分类
信息技术与安全科学引用本文复制引用
夏少波,邹建梅,朱晓丽,连丽君..基于跳数区域划分的DV-Hop改进算法[J].传感技术学报,2014,(7):964-969,6.基金项目
山东省自然科学基金面上项目（ZR2012FM033) （）
