Energy Efficient Moving Target Tracking in Wireless Sensor Networks

• Main Authors: Yingyou Wen, Rui Gao, Hong Zhao
• Format: Article
• Language: English
• Published: MDPI AG 2016-01-01
• Series: Sensors
• Subjects: wireless sensor networks; target tracking; generalized Kalman filter; neighborhood function; fuzzy
• Online Access: http://www.mdpi.com/1424-8220/16/1/29

Moving target tracking in wireless sensor networks is of paramount importance. This paper considers the problem of state estimation for L-sensor linear dynamic systems. Firstly, the paper establishes the fuzzy model for measurement condition estimation. Then, Generalized Kalman Filter design is performed to incorporate the novel neighborhood function and the target motion information, improving with an increasing number of active sensors. The proposed measurement selection approach has some advantages in time cost. As such, if the desired accuracy has been achieved, the parameter initialization for optimization can be readily resolved, which maximizes the expected lifespan while preserving tracking accuracy. Through theoretical justifications and empirical studies, we demonstrate that the proposed scheme achieves substantially superior performances over conventional methods in terms of moving target tracking under the resource-constrained wireless sensor networks.