关键词: 无线传感器网络, 节点选择, 跟踪质量, 网络寿命

Abstract: In order to guarantee high quality of tracking WSN’s nodes, a new scheme is proposed. A number of nodes are selected in the predict area which the target will move to. This scheme can ensure the target always be detected whenever it moves to a new location and the detecting nodes are close from the target with higher detecting quality. Although this strategy consumes more energy for selecting more nodes to track target, it does not reduce the network lifetime. As the wireless sensor network lifetime depends on the lifetime of node with maximize energy consumption, this strategy does not reduce the network lifetime. This paper also evaluates the performance of the scheme by analysis and simulations which confirm the proposed scheme has better trace quality and energy performance than previous schemes.

Key words: Wireless Sensor Network（WSN）, node selection, tracking quality, network life