摘要
提出一种协作定位方法.利用邻居信标交互,获取定位环境信息,并在此基础上实现基于无效信标过滤的信号强度定位.同时,在多种定位方法协作判定下,将精度较高的已定位节点升级为信标节点.仿真结果表明,该方法同加权RSSI及APIT定位方法相比,具有较高的定位精度和定位成功率.
A cooperating localization algorithm is proposed.Environmental information is obtained with the help of neighbor beacon interaction and node′s location could be obtained based on invalid beacon filtration as well as the signal strength detection.Furthermore,in collaboration with a variety of localization methods,node with higher localization accuracy becomes beacon.Simulation results demonstrate that this algorithm performs well on localization accuracy as well as success rate compared with the weighted RSSI and APIT algorithm.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2010年第11期2625-2629,共5页
Acta Electronica Sinica
基金
国家自然科学基金(No.60973139
No.60773041
No.61003039
No.61003236)
江苏省科技支撑计划(工业)项目(No.BE2010197
No.BE2010198)
江苏省级现代服务业发展专项资金
国家和江苏省博士后基金(No.0801019C
No.20090451240
No.20090451241
No.20100471353
20100471355)
江苏高校科技创新计划项目(No.CX09B-153Z
No.CX10B-196Z
No.CX10B-197Z
No.CX10B-198Z
No.CX10B-199Z)
江苏省六大高峰人才项目(No.2008118)
江苏省计算机信息处理技术重点实验室基金(2010)资助
关键词
无线传感器网络
定位
路径损耗指数
定位成功率
wireless sensor networks
localization
path loss index
success rate of localization
