On Complete Target Coverage in Wireless Sensor Networks With Random Recharging Rates
On Complete Target Coverage in Wireless Sensor Networks With Random Recharging Rates
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DOI：
10.1109/lwc.2014.2367033
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发表时间：
2015-02
影响因子：
6.3
通讯作者：
Changlin Yang;Kwan-Wu Chin
中科院分区：
文献类型：
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作者：
Changlin Yang;Kwan-Wu Chin
无线传感器网络中的一个基本问题是确定一组传感器节点的最小活动时间，使得它们在最大时间内监视所有目标。然而，现有的解决方案不考虑随机充电速率和陈旧的电池电量信息，导致传感器节点无法实现的激活调度。然而，我们提出了一种基于随机规划（SP）的方法，考虑随机电池水平。实验结果表明，我们的SP方法实现了80%的理论上可实现的覆盖寿命。
A fundamental problem in Wireless Sensor Networks (WSNs) is determining the minimum active time of a set of sensor nodes such that they monitor all targets for the maximum time. However, existing solutions do not consider random recharging rates and staled battery level information, resulting in an activation schedule that is not realizable by sensor nodes. Henceforth, we propose a Stochastic Programming (SP) based approach that considers random battery levels. Experimental results show our SP approach achieves 80% of the theoretically achievable coverage lifetime.