A cooperative framework for target tracking in Wireless sensor networks

A Wireless sensor network (WSN) can be deployed in advance for tracking a moving target. The sensor nodes can be arranged at some expected positions, the computing complexity for locating the target hereby will be mitigated. In this paper, we propose a cooperative framework for multiple sensor nodes to track the moving target. A lightweight distributed method to locate the target is presented in the framework. We analyze the impacts of the time synchronization error and distance measurement error on the target track errors. Based on the analysis, the parameters involved in this method are discussed. With the suitable parameters, the method can assure the accuracy of the track while simplifying the calculation of the localization.