一种基于AODV的链路中断预测和最短路径修复机制

A Kind of Link Interruption Forecasting and Shortest Path Repair Mechanism Based on AODV

摘要:

在无线Ad Hoc网络中, 为了提高链路质量和通信的稳定性, 提出一种基于AODV路由协议的链路中断预测和最短路径修复机制(LIFSR-AODV)。通过检测网络中的链接质量, 预测和避免链路中断的发生, 降低了本地修复过程中控制包的开销和传输延迟。同时, 在修复过程中能够通过删除链路中的多余节点来缩短路径长度。通过在IEEE 802.15.4 Matlab模拟器下仿真, 验证此路由机制能够提高AODV路由协议的性能和链路的稳定性。

Abstract:

In wireless Ad Hoc network, in order to improve the stability of the link and quality of the communication, proposed is an integration of link interruption forecasting and shortest route repairing mechanism based on a modified AODV protocol, which is called LIFSR-AODV. By detecting network link quality, this mechanism can not only predict and avoid the link interruption, but also reduce the control packet overhead of local repairing and transmission delay. Meanwhile, the repairing process can be used to shorten the length of the path by removing redundant link node. Through making simulation experiments in IEEE 802.15.4 Matlab simulator, it is verified that the routing mechanism not only improves the performance of AODV, but also improves the stability of the link.