Ad Hoc中具有实时意识的按需距离矢量协议  

Real-time aware on-demand distance vector protocol in Ad Hoc

作　　者：周力为[1] 周满元[1] 

机构地区：[1]桂林电子科技大学计算机与控制学院,广西桂林541004

出　　处：《计算机应用》2007年第12期2989-2991,共3页journal of Computer Applications

基　　金：广西科学基金资助项目(桂科基0448074)

摘　　要：针对现存的Ad Hoc网络路由协议普遍存在延时较大,不能满足实时应用的传输需求的缺陷,在AODV协议的基础上,提出了一种具有实时意识的Ad Hoc按需距离矢量路由协议RAODV,并通过仿真实验在不同的网络状态下对RAODV与AODV的性能进行了对比。实验结果表明:在常规网络负载的情况下,RAODV可以获得和AODV同等水平的分组投递率,而数据分组的平均端到端延时和路由负荷则相对较低;在网络负载比较大的情况下,两种协议的性能都有所下降,但相对于AODV来说,RAODV的性能下降幅度要小很多,并且可以获得更高的分组投递率,更低的数据分组平均端到端延时和路由负荷。Most of the existing Ad Hoc routing protocols have the disadvantage of high delay and can not satisfy the transmission requirements of real-time applications. Based on the Ad Hoc On-demand Distance Vector Routing （AODV） protocol, a real-time aware Ad Hoc on-demand distance vector routing protocol named RAODV was proposed. The performances of RAODV and AODV under different network conditions were compared by simulation experiments. The results of the experiments show that RAODV can obtain as good packet delivery fraction as AODV, but has lower average end-to-end delay of data packets and routing load than AODV under normal network load condition. Under high network load condition, the performances of both protocols declined. However, the performance of RAODV declined much less than that of AODV. At the same time, RAODV has higher packet delivery fraction, and lower average end-to-end delay of data packets and routing load than AODV.

关 键 词：AD HOC网络 AD Hoc按需距离矢量协议 实时意识 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]