一种适用于战术条件下的自组织网路由协议  

A Routing Protocol for Tactical Ad Hoc Networks

作　　者：徐建勇[1] 牛大伟[2] 于卫波[2] 董超[2] 

机构地区：[1]金陵科技学院信息技术学院,南京211169 [2]解放军理工大学通信工程学院,南京210007

出　　处：《电讯技术》2009年第11期12-17,共6页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(60672080);国家高技术研究发展计划(863计划)项目(2008AA01Z216);解放军理工大学预先研究基金项目

摘　　要：应用于战术条件下的自组织网络,其拓扑具有长期稳定而短期突变的特性;其流量具有不均衡性,中心节点的流量比重较大。针对战术无线网络的这种特性设计了一种混合式路由协议(HRP),协议为近端节点采用先应式协议维护路由而为远端节点采用反应式协议维护路由,对远端节点的路由请求采用OLSR协议的MPR思想,限制反应式协议的路由开销。并且,在近端拓扑变化频度超过门限值后,发起针对繁忙节点的路由发现请求,保持到繁忙节点的路由常新,从而提高了路由命中率。仿真结果表明,应用HRP协议后,无论其选路质量还是应用层业务的时延和吞吐量指标都优于DSR和ZRP协议。Tactical Ad Hoc network＇ s topology is usuaUy stable during networks life time, and will be changed thoroughly at some i nodes have heavy traffic load. nstant. Besides, traitic in this type network is unbalanced, some central According to the characters above, a hybrid routing protocol （HRP） is designed to reduce the routing overhead and make routes to hot point node always fresh. The protocol maintains near node＇s topology proaetively and discovers the path to remote nodes reactively. During the process of discovering remote path, the strategy of MPR introduced from OLSR is adopted to reduce the overhead and promote the hit probability. When the near node＇ s topology is changed frequently, the node triggers route discovery process to the hot point node by which to update the hot point node＇ s route fresh. The performance of protocol is better than that of DSR and ZRP whether in overhead or in application layer＇ s throughput and latency through the observation of simulation results.

关 键 词：战术网 无线自组织网络 路由协议 拓扑特征 混合式路由 

分 类 号：TN915.04[电子电信—通信与信息系统]