Trust model based on changeable sampling frequency for wireless sensor network

Abstract

Traditional monitoring sensor has fixed sampling frequency. Whether the frequency is too high or too low, it is easy to cause some problems. This paper firstly puts forward sensor with changeable sampling frequency and its control algorithm. Considering the special circumstance that some nodes of the wireless sensor network are faulty, a trust model based on changeable sampling frequency. It is an improvement on our former models which has higher fault detection rate. Moreover, the model can detect fault in shorter time duration.