网络编码在无线Mesh网络中的研究与实现

摘要

Many of routing protocols borrowed 1From ad hoc networks can be used in Wireless Mesh Networks （WMNs）. Because of the node of WMNs moves quickly and the path has short lifetime, it is expected that a protocol that takes the highly dynamic feature of the WMNs into account will outperform the general protocol. COPE is a new opportunistic network coding mechanism for unicasts in WMNs to improve total throughput. In this paper, more coding opportunities at wireless nodes are created by integrating COPE and wireless routing protocol AODV. The simulation results on NS2 platform show that the throughput of WMNs can be greatly improved.%Mesh网络沿用了Ad Hoc网络中的路由协议,但Mesh网络节点移动性高,路径的生存周期短,根据无线Mesh网络自身的动态特点进行路由协议的优化成为了研究的热点。COPE编码方案是针对Mesh网络中的单播特性提出的一种新的机会网络编码机制,能够提高网络的吞吐量。通过NS2仿真平台对AODV路由协议添加COPE网络编码方案,仿真结果表明在不同网络条件下,AODV和COPE的结合增加了无线节点的编码机会,使网络的吞吐量得到了有效的提高。