Sensor selection algorithm based on modified binary particle swarm optimization

Considering the problem of sensor selection for multi-target tracking in wireless sensor networks(WSN)，a sensor selection algorithm based on binary particle swarm optimization(PSO) is proposed to maximize the tracking accuracy. The predicted coordinate of the target and the determinant of the Fisher information matrix (FIM) is used for sensor selection. A modified form of binary particle swarm optimization(MBPSO) is proposed to solve the model, which is designed by employing the binary vector coding manner, constraint satisfaction cyclic shift population initialization method, particle position updating rules with the V-shaped transfer function and guidance factor. Simulation results show that the proposed sensor selection algorithm can be efficiently applied in the multi-target tracking problem. Compared to the basic particle swarm optimization algorithm and genetic algorithm (GA), the modified algorithm achieves a balance between global optimization and local exploration, and can effectively avoid the local optimum. Moreover, the proposed algorithm is suitable for large-scale networks.