不同网络负载的Ad Hoc网络路由协议性能分析  

Performance comparison of Ad Hoc network routing protocols with different network loads

作　　者：陈建华[1] 李绍文[2] 

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 [2]桂林电子科技大学网络信息中心,广西桂林541004

出　　处：《计算机应用》2008年第S2期42-44,共3页journal of Computer Applications

摘　　要：通过实验对一种表驱动路由协议(DSDV)以及其中两种按需式路由协议(DSR和AODV)协议的性能进行比较和分析。利用NS-2仿真软件,设计了基于不同网络负载的多组仿真模型,并根据模型进行仿真。之后从分组投递率、时延和路由负荷三个性能指标参数对仿真结果进行了比较。实验结果表明:按需式路由协议DSR和AODV要优于基于表驱动的路由协议DSDV;在两种按需式路由协议之间,随着不同网络负载的加重,AODV协议比DSR协议的性能优势越来越明显。同时分析了造成不同协议之间性能差距的原因,针对AODV协议提出了今后的改进方向。Experiments on the performance of the DSDV,DSR and AODV were compared and analyzed.Many simulation scenarios based on different numbers of source nodes were designed by using NS-2 network simulator.The performances of the protocol under different scenario were compared and analyzed by simulation experiments on packet delivery fraction,routing load,average end-to-end delay of data packets.The results of simulation experiments show that the on-demand protocols,AODV and DSR performs better than the table-driven DSDV protocol,AODV performs better than DSR with the increasing of source nodes.The reason of the performance difference among different protocols and future works was also discussed.

关 键 词：移动自组网络 目的节点序列距离矢量路由协议 动态源路由协议 AdHoc按需距离矢量路由协议 分组投递率 路由负荷 

分 类 号：TN929.5[电子电信—通信与信息系统]