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中文摘要：
目标跟踪广泛地应用于无线传感器网络的各个领域．该文研究无线传感器网络目标跟踪中的节点选择问题，提出了具有跟踪质量保证的跟踪节点选择算法．该算法在保证给定目标跟踪可靠性要求的同时对网络生存期进行优化．文中首先分析了影响传感器节点生存期的3个因素，包括节点感知数据的可靠性、节点剩余能量以及节点通信和采样的能量消耗．在此基础上建立节点生存期函数，在满足用户给定目标跟踪可靠性要求的前提下选择使网络生存期最大化的节点参与目标跟踪．实验结果表明该文所提出的节点选择算法可以有效延长网络生存期．
英文摘要：
Target tracking has been widely applied in various areas of wireless sensor networks. The problem of nodes selection of target tracking in wireless sensor networks is studied in this paper, and two tracking quality aware nodes selection algorithms are presented, which exploits the tradeoff between tracking quality and energy consumption to extend the lifetime of WSNs. The paper analyzes the factors that influence the lifetime of sensor nodes including the false alarm probability, the residual energy and the cost of communication and sampling of sensor nodes. Based on these analyses, we give the definition of the lifetime of the network and choose nodes with the maximal lifetime under the guarantee of the given false alarm threshold. Experimental results show that the proposed algorithms can extend the lifetime of WSNs efficiently.
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