基于节点运动信息的链路稳定路由设计及其仿真分析

为MANETs路由构建了通过节点运动数据来实现的链路稳定路由LDPR,利用节点运动信息对链路生存时间进行初步预测,同时加入了双路由结构。采用LDPR路由来估计二个节点的链路连通时间时需考虑二个节点相对速度矢量。LDPR路由先对链路生存时间进行预测,确保链路发生断开前使备份路由处于工作状态。在路由被建立后,利用源节点来计算路由生存时间。参数优化结果得到:当节点数上升后,路由的开销率也不断增大,吞吐量发生了减小,传输时延也更大。相比较AODV路由,LDPR路由的开销率以及传输时延都较低,吞吐量较高,可见提出的LDPR路由运行效率更高。

Design and Simulation Analysis of Link Stability of Routing Based on Node Motion Information

A link stable route LDPR is constructed for MANETs routing by means of node motion data.The survival time of the link is preliminarily predicted by using node motion information,and a dual routing structure is added.When LDPR is used to estimate the link connection time of two nodes,the relative velocity vector of two nodes should be considered.The LDPR route first forecasts the link lifetime to ensure that the backup route is in working state before the link is disconnected.After the route is established,the source node is used to calculate the route lifetime.Parameter optimization results show when the number of nodes increases,the routing overhead rate increases,the throughput decreases,and the transmission delay increases.Compared with AODV routing,LDPR routing has lower overhead rate,lower transmission delay and higher throughput,so it can be seen that LDPR routing proposed in this paper has higher operational efficiency.