配电无线传感网功率控制路由优化算法

Distribution power wireless sensor network control routing optimization algorithm

为解决无线传感器网络中节点能量过早耗尽问题,针对配电通信网,提出一种基于功率控制的路由优化算法P_AODV。算法在配电通信网络拓扑分析基础上,提出一种弱环状结构模型;在路由应答分组中添加上一跳位置信息、下一跳位置信息、路径节点剩余能量的数组信息、链路总能耗信息和链路权值信息,源节点根据链路性能函数对各条链路进行权值计算;通过节点能耗模型和最佳路径选择机制完成路由建立,当网络中出现失效节点时,下游采集节点借助中继节点来构建弱环状模型完成通信。仿真结果表明,该算法能够有效地实现节能,延长网络的生命周期,同时提高网络吞吐量,降低丢包率和路由开销,具有较优的网络性能。

To solve the problem of node energy early exhaustion in wireless sensor network, for power distribution communication network, this paper proposes a power control routing optimization algorithm P_AODV. The algorithm firstly analyzes the communication network topology and presents a weak ring topology model; secondly, it adds the last hop location information, the next hop location information, the array of path node residual energy, the total energy consumption and weight of the link in the routing reply packet, and the source nodes calculate the weight calculation of links according to the link performance function; thirdly, the algorithm establishes routing by the best routing path selection mechanism, and adopts nodes energy model to achieve maintenance. The simulation results show that the algorithm can effectively implement the energy saving to prolong the lifecycle of the system, improve the network throughput, and lower packet loss rate and the routing overhead, with a better network performance.