作　　者： ; ; ;

机构地区： 惠州学院计算机科学系

出　　处： 《惠州学院学报》 2014年第3期67-70,78,共5页

摘　　要： 节点定位是无线传感器在安全监测应用中的重要环节。利用接收信号强度指示(Received Signal Strength Indication)进行定位存在较大的误差,定位精度不高。为提高定位精度,提出了一种基于粒子群算法的定位算法。该算法无需额外增加硬件,费用低,易实现。仿真实验结果表明,该算法的定位误差比极大使然法减小了0.4798%。 Node positioning is one important part of security monitoring applications. There is large error range in positioning by received signal strength indication, which also results in low location accuracy. To improve the location accuracy, we developed a positioning algorithm based on particle swarm algorithm. This algorithm doesn't need to use additional hardware, so it's in low cost and very easy to implement. After our simulation experiments, we found that the error range of our algorithm is lower than maximum likelihood estimation by 0.4798%.

关 键 词： 接收信号强度指示 粒子群算法 节点定位 无线传感器网络

领　　域： [自动化与计算机技术] [自动化与计算机技术] [电子电信] [电子电信]