摘要
提出了一种基于遗传退火算法和RSSI的无线传感器网络的节点定位算法。首先利用RSSI测距技术收集网络中节点间的通信讯息和距离估计,并优选信标节点;其次通过将定位问题视为一种优化问题,采用遗传退火算法优化未知节点的定位结果。仿真实验结果表明,所提出的定位算法有较高的定位精度。
This paper presents a localization algorithm based on GASA（genetic and simulated annealing）algorithm and RSSI（relative received signal strength）in wireless sensor network.First we collect the communication information and the evaluated distance between nodes in the wireless network using the RSSI measure and have precedence over the anchor nodes.Second,we consider the locating problem as an optimization process to obtain the position of the unknown nodes positioning using genetic and simulated annealing algorithm.The simulation experiment shows that the proposed location algorithm has a higher accuracy.
出处
《西华大学学报（自然科学版）》
CAS
2010年第6期51-54,共4页
Journal of Xihua University:Natural Science Edition
关键词
无线传感器网络
定位算法
RSSI
遗传退火算法
wireless sensor network
localization algorithm
RSSI
genetic and simulated annealing algorithm
