摘要
分析典型的测距无关定位算法APIT与API2T,指出其存在定位精度低与覆盖率低的缺陷。针对该问题,提出一种基于网格扫描的无线传感器网络定位算法——API3T。重新定义邻居节点,改进网格扫描策略,从而减少In-To-Out错误和Out-To-In错误。仿真实验结果表明,该算法的定位精度与覆盖率较高。
This paper analyzes the range-free localization Algorithm APIT and API^2T, points out the drawback of low accuracy and poor coverage. Wireless Sensor Network（WSN） localization algorithm based on grid scanning, called API^3T, is proposed. In-To-Out error and Out-To-In error are reduced by redefining the neighbor nodes and it improves the strategy of the grid-scanning. Simulation experimental results show that the algorithm increases the localization accuracy and coverage.
出处
《计算机工程》
CAS
CSCD
2012年第9期86-89,96,共5页
Computer Engineering
基金
国家自然科学基金资助项目(60373012
10871119)
山东省自然科学基金资助项目(ZR2009GM009
ZR2009AM013)
山东省科技攻关计划基金资助项目(2009GG10001014)
山东省高校科技计划基金资助项目(J10LG09)
关键词
无线传感器网络
定位算法
无线传播模型
网格扫描
定位误差
Wireless Sensor Network（WSN）
localization algorithm
wireless propagation model
grid scanning
localization error
