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鉴于能耗问题是无线传感器网络研究的重要问题,首先建立一种非均匀部署网络拓扑模型,该模型中越靠近sink的区域节点部署越密集,节点通信距离越小;然后针对节点初始随机部署情况,提出一种基于节点能耗均衡的分区域节点重部署算法,该算法利用分区域的节点移动,减少节点移动距离,降低移动能耗,提高算法收敛速度;最后通过仿真表明,所提出的算法可以用较少数量的节点覆盖监测区域,保证网络中各节点能量均衡消耗,提高网络生存周期.
Since energy consumption is an important issue in WSN research, a non-uniform deployment topology model is established. In this model, the nodes closer to the sink are deployed more densely and the node communication distance is smaller. Then according to the initial random deployment of nodes, This paper proposes a subarea node redeployment algorithm based on node energy consumption equalization. This algorithm uses node mobility in subarea to reduce node moving distance, reduce mobile energy consumption and improve convergence speed. Finally, the simulation shows that the proposed algorithm can Covering the monitoring area with a smaller number of nodes ensures that the nodes in the network consume energy evenly and improve network lifetime.