移动Ad Hoc网快速自适应后备路由协议  

Fast adaptive backup routing for mobile Ad Hoc network

作　　者：周鹏[1,2] 

机构地区：[1]西北工业大学计算机学院,西安710072 [2]湖北汽车工业学院汽车信息控制与网络技术研究所,湖北十堰442002

出　　处：《计算机工程与应用》2012年第23期21-26,共6页Computer Engineering and Applications

基　　金：湖北省教育厅中青年科研项目(No.20111803);湖北省高等学校优秀中青年科技创新团队计划项目(No.T200903);汽车动力传动与电子控制湖北省重点实验室开放基金项目(No.ZDK201002);湖北省教育厅科学研究计划(No.B2011804)

摘　　要：移动Ad Hoc网拓扑结构经常变化。自适应后备路由局部修复AODV协议AODV-ABL通过监听RREP包和数据包来产生后备路由,并存于后备路由表中。仅当链路错误时,AODV-ABL才试图利用后备路由表进行局部修复。为提高对网络拓扑变化的自适应性,在AODV-ABL基础上,提出了一种快速自适应后备AODV路由协议AODV-FABL。AODV-FABL合并主路由表和后备路由表,在监听包时同步更新路由,路由能尽快地得到优化。实验结果表明,AODV-FABL取得了比AODV-LR、AODV-ABL更好的包投递率、端对端时延、控制开销和对流量负载变化的适应性。The network topology changes frequently in mobile Ad Hoc networks.In AODV-Adaptive Backup with Local repair routing（AODV-ABL）protocol,the backup route can be created by overhearing RREP packets and data packets and can be stored in alternate route table.Only when the link error occurs,AODV-ABL tries to start a local repair process by using alternate route table.In order to improve the adaptability to the network topology changing,a Fast AODV-ABL routing（AODV-FABL）protocol,which based on AODV-ABL,is proposed.AODV-FABL merges the primary route table with the alternate route table,and updates routes when overhearing packets,thus the routes can be optimized as soon as possible.Experimental results show that AODV-FABL has better packet delivery ratio,end-to-end delay,control overhead and adaptability to the variational traffic load than AODV-LR and AODV-ABL.

关 键 词：移动AdHoc网 自组织网络按需距离矢量(AODV) 监听 后备路由 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]