无线传感器网络动态汇聚节点调度算法研究

Study on Scheduling Algorithm of the Mobile Sink Node in Wireless Sensor Networks

移动汇聚节点调度是传感器网络中一个新的研究热点.通过建立一个普适的多目标优化模型,提出了贴近实际的汇聚节点循环路径规划模型,采用以连续时间离散化为理论基础的时域-空域转化方法,将时域中的优化模型无损地转至空域中,从而大大减少了所涉及的变量数量,降低了求解的复杂度.通过实验可以看出,调度移动汇聚节点可以有效扩展网络的生命周期.

Mobile sink node scheduling is a new research topic in the study of sensor networks. Through establishing a common multi-obj ective convex optimization model,we propose a sink node circle path planning model which is close to practical situation.We use the time-space domain conversion method which is based on discrete continuous time to transform the optimization model from the time domain to the space domain losslessly,and reduce the amount of the variable,and make the numerical solution method easier.From the experiment,it can be concluded that the life-cycle of the networks can be highly improved by scheduling of the mobile sink node.