考虑天线角度的无线传感器网络节点定位方法

Localization with Radio Irregularity in Wireless Sensor Networks

针对RSSI值受发射天线角度影响的问题,通过特定位置分布的锚节点,对普通节点的位置进行估测,获得天线的角度,对RSSI值进行角度补偿,并在定位计算中,采用了一种多锚节点关联的定位方法,有效提高节点的定位精度。实验结果表明,此定位方法可以把平均定位精度从40%提高到10%。

To get high precision of localization with radio irregularity in WSN（wireless sensor network）,a multi-node localization method based on RSSI is proposed.The position is acquired approximately to predict the angle of each antenna,then the RSSI based on the angle is processed,and the positions of anchor node is used to calculate the position of the node.The experiments show that the average location error is improved from 40% to less than 10%.