一种高效可靠的无线传感器网络定位算法  

An efficient and reliable localization algorithm for wireless sensor networks

作　　者：陈翔[1] 罗守山[2] 

机构地区：[1]杭州师范大学杭州国际服务工程学院,浙江杭州310036 [2]北京邮电大学信息工程学院,北京100876

出　　处：《微型机与应用》2010年第24期53-55,共3页Microcomputer & Its Applications

摘　　要：提出了一种新的基于接收信号强度(RSSI)的无线传感器网络定位算法,将固定锚节点之间的距离和信号强度信息同时作为参考来校正每个固定锚节点的权值,每个节点收集自身到其一跳邻节点的RSSI值,当收集数量达到要求时,对数据进行滤波并求平均值处理。通过理论推导证明该方法可以有效降低RSSI不规则网络的定位误差,进而实现高效定位。仿真结果表明,该定位算法可以降低定位误差,具有高效的可用性,能够应用于实际的无线传感器网络中。This paper,a novel based on the received signal strength（RSSI） of wireless sensor networks localization algorithm,the distance between the fixed anchor nodes and signal strength information as a reference to two kinds of information while each of the fixed anchor nodes calibration weights to each node to collect its own RSSI value-hop neighbor nodes,when the collection reached the number of requirements,filter the data and average the deal.Through theoretical analysis to prove that the method can effectively reduce the positioning error of RSSI irregular network,thus achieving high positioning.Simulation results show that the use of the proposed location algorithm can reduce the positioning error,with high availability,can be applied to practical wireless sensor networks.

关 键 词：无线传感器网络 定位算法 定向路由 链路质量评估 

分 类 号：TP393.17[自动化与计算机技术—计算机应用技术]