无线传感器网络中基于RSSI的质心定位算法

RSSI-based centroid localization algorithm in Wireless Sensor Network

利用RSSI测距与三角形质心定位相结合的新型定位算法实现了煤矿安全监测无线传感器网络节点间的自定位,介绍了算法的基本原理和实现方法。该算法有效减小了RSSI的测距误差,只需较少的通信开销。仿真结果表明,该算法有效地提高了无线传感器节点间的定位精度。

This paper realizes the self-localization between network nodes of wireless sensor network in coal mine safety monitoring using a new localization algorithm of RSSI ranging and triangle centroid localization algorithm,it also introduces the basic principle and implementation method of the algorithm.This algorithm reduces RSSI ranging-error effectively,it needs low communication over-head.Simulation result shows,the algorithm proposed can improve the location precision of wireless sensor nodes efficiently.