基于RSSI的无线传感器网络三角形质心定位算法

RSSI-based Triangle and Centroid Location in Wireless Sensor Network

节点定位是无线传感器网络中的关键技术之一。基于RSSI的定位技术是现阶段研究的热点,为解决RSSI测量方法定位误差较大的问题,提出一种将RSSI测量方法与三角形质心算法相结合的新型定位算法,该算法用三角形质心算法减小RSSI的测量误差。仿真表明该算法比基于RSSI的三边测量法定位算法的定位精度有较大提高。

Node location is one of the key technologies in wireless sensor network. RSSI - based location is a hotspot in nowadays. For resolving biggish error in RSSI - based location, the paper presents a new method of location, RSSI- based triangle and centroid location, using triangle and centroid method to reduce the error of RSSI measurement. Simulation experiments prove that this algorithm can obviously improve the location accuracy compared to trilateration.