摘要
介绍了无线自组织网和AODV路由协议,在对AODV路由协议的原理、特点作了全面分析的基础上,针对该协议存在的不足,提出了改进方法。方案对原Hello消息机制进行了改进,使节点可以利用Hello消息交换路由信息,从而建立备份路由。通过在NS-2中对改进的协议进行仿真模拟,发现与传统AODV协议相比,该方案可以减少断路后重新找到路由的时间,有效提高了Ad Hoc网络的吞吐量,降低了时延,从而有效的提高了网络的性能。
This paper introduces the Ad Hoc networks. Then it introduces commonly used Ad Hoc Routing Protocols-AODV. Based on a relatively comprehensive account of the principles and characteristics of the AODV route protocol,improved methods were brought forward here to deal with the deficiencies of the AODV route protocol. This protocol regularly sent the expand Hello message(Hello add a routing destination address) ,can establish several alternative routes to the destination node through forming mesh structures. The protocol realized and tested on the network simulator-NS2. In the packet delivery ratio and the packet average delay,the improved protocol is better than the original protocol.
出处
《电脑知识与技术（过刊）》
2009年第4X期4402-4403,4406,共3页
Computer Knowledge and Technology
