无线传感器网络中移动sink节点的路径规划

在无线传感器网络中,大量感知数据汇集到sink节点的采集方法会导致sink节点附近的节点能量耗尽,造成能量空洞。针对该问题,利用移动的sink节点进行数据收集是一种解决方法,其中移动sink的路径规划成为一个重要的问题。提出了一个移动sink路径规划算法,将无线传感器中随机分布的节点划分为不同的子区域,寻找sink节点移动的最佳转向点,最终得到最优的移动路径,以实现无线传感器网络生命周期最大化。仿真实验表明,与现有方案相比,该算法能显著延长网络的生命周期。

Path Planning of Mobile Sink Node in Wireless Sensor Network

In wireless sensor networks,a large number of sensing data collected to sink nodes will lead to energy depletion of the nodes near sink nodes,resulting in energy hole.To solve this problem,it is a solution to collect data by using mobile sink nodes.The path planning of mobile sink becomes an important issue.In this paper,a mobile sink path planning algorithm is proposed,which divides randomly distributed nodes into different sub regions,searches for the best turning point of sink node movement,and finally obtains the optimal mobile path to maximize the lifetime of wireless sensor network.Simulation results show that compared with the existing scheme,the algorithm can significantly extend the lifetime of the network.