无线传感器网络节点移动路径优化方法

摘要

为解决移动传感器修复网络覆盖空洞时最优级联移动路径的选择问题,综合考虑中间级联节点的个数和能量,提出了选择级联移动路径的优化方法.该方法通过计算中间级联节点的能量可用率,进一步得出各路径的能量可用率和决定性能量,从多目标优化的角度来选择最优的级联移动路径,有效均衡了各移动传感器的能耗,充分利用了整个网络的能量,从而延长了网络的生存时间.仿真结果表明,该优化方法比标准的级联移动方法有更高的网络能量使用效率.%To address the problem of choosing the optimal cascaded movement path when mobile sensors are used to repair coverage holes in wireless sensor networks, the optimization method of choosing cascaded movement paths is proposed based on the number and the energy of intermediate cascaded nodes. The energy availability and the decisive energy of movement paths are gotten by computing the energy availability of intermediate nodes. Finally the optimal movement path is choosen by the multi-objective. The energy consumption of mobile sensors are balanced effectively, and the energy of the entire network is fully utilized. So the network lifetime is extended. The simulation results show that the proposed method has a higher energy efficiency than the standard cascaded movement.