重庆大学学报Issue(8)：144-150,7.DOI:10.11835/ji.ssn1.000-582X2.0140.80.21
RSSI修正的WSN定位算法
WSN localization algorithm based on RSSI correction
摘要
Abstract
In order to solve the problem that there is large errors in DV-Hop algorithm in network topology environments ,a modified RSSI-based WSN localization algorithm RMDV-Hop (RSSI Modify DV-Hop)is presented in this paper .The algorithm limits the maximum number of hops and uses RSSI value to modify its hop value when hop of an anchor node is 1 .The first N anchor nodes with greater RSSI value is chosen as reference anchor nodes and per hop distance error of the reference anchor nodes are used to weight average hop distance of the unknow n node .Finally ,a total least squares method is used to calculate the coordinates of the position of the unknown node to achieve overall improvement of RMDV-Hop localization algorithm and improve the positioning accuracy .The simulation results show that the positioning accuracy and stability of the improved algorithm has been significantly improved than those of the original algorithm .关键词
DV-Hop算法/RSSI值/平均每跳距离误差/总体最小二乘法/WSNKey words
DV-Hop algorithm/RSSI value/average hop distance error/total least squares/WSN分类
信息技术与安全科学引用本文复制引用
武时龙,张万礼,杨小莹..RSSI修正的WSN定位算法[J].重庆大学学报,2014,(8):144-150,7.基金项目
安徽省青年人才基金重点资助项目（2012SQRL199ZD ，2013SQRL083ZD ）；宿州学院开放课题平台 （）
