无线传感器网络中RSSI滤波的若干处理方法

Some methods of RSSI filtering in wireless sensor networks

无线传感器网络是一门新兴的技术,具有广泛的应用领域。而基于接收信号强度指示(RSSI)应用的无线传感器网络,需要对网络中接收到同一个节点的多个RSSI值进行滤波。为了对RSSI滤波有一个全面的认识,介绍了几种滤波方法,详细综述了每种滤波方法的原理和特点,最后指出应根据具体情况,权衡滤波效果、算法复杂度、节点能耗等各方面因素,选择一种或者多种算法混合的滤波方法。

Wireless sensor network is an emerging technology,which has a wide range of applications,but the wireless sen-sor networks based on the received signal strength indicator（RSSI）application need to filter the multi-RSSI values of the same node received by network. In order to have a comprehensive understanding of RSSI filtering,several filtering ways are intro-duced. The principles and characteristics of each filtering method are summarized in detail. Finally,it is pointed out that the fil-tering effect,algorithm complexity,node energy consumption and other factors should be weighed to select a filtering method or a hybrid filtering method mixed with more algorithms.