一种节点移动性感知的路由判据

摘要

A new route metrics which takes node mobility into account is designed to solve the problem of routing efficiency decline resulted from ignoring the node mobility in wireless mesh networks.RSSI (received signal strength indicator)is used to calculate the distance between two nodes.And then the distance is used to estimate its relative mobility in this metrics. Then the mobility of the node is calculated,which is made as a part of the new metrics.Simulation results show that the new metrics improves the throughput and delay.%针对无线 mesh网络进行路由选择时，因忽略节点的移动性造成路由效率下降的问题，设计一种考虑节点移动性的路由判据。该判据通过节点间的接收信号强度指示计算两节点间的距离值，并通过监测距离值的变化来判断两节点的相对运动情况。综合各节点的相对运动数据，计算当前节点移动性参数，将其作为判据的一部分。仿真结果表明，所设计的路由判据在吞吐量和时延方面具有更优的表现。