一种高效可靠的MANET网络路由算法  

Effective Reliable Routing Algorithm for Mobile Ad-hoc Network

作　　者：贺冰琰[1] 刘年生[1] 

机构地区：[1]集美大学计算机工程学院,福建厦门361021

出　　处：《集美大学学报（自然科学版）》2014年第6期477-480,共4页Journal of Jimei University：Natural Science

基　　金：福建省自然科学基金资助项目(2012J01279)

摘　　要：移动Ad-hoc网络AODV路由协议在路由断掉时,源节点会重新发起路由建立的过程,而在建立新的路由之前,分组会被丢失和通信被中止,针对这问题提出了一种高效可靠的移动Ad-hoc网络路由算法——AODV-RBA(Ad-hoc On-Demand Distance-Vector with Route Break Avoidance).新算法基于AODV,提出了新的路由维护机制:一条活动的路由上的每个中间节点都能检测到通往上行节点的链接中断危险,并在路由中断之前重新建立新的路由,可避免路由中断.NS2仿真结果表明,与AODV相比,AODV-RBA算法在网络时延、丢包率等方面有较大改善,具有较强的鲁棒性和容错性.For the AD-hoc On-Demand Distance-Vector （AODV） algorithm, the source node will reestablish a new route after previous one is broken. However, the packets will be discarded and the communication will be ended before the new route is established. To address the issues, an new effective reliable routing algorithm , AD-hoc On-Demand Distance-Vector with Route Break Avoidance （AODV-RBA） , is proposed in this paper. AODV-RBA based on AODV designs a new route maintenance mechanism, each intermediate node on an active route detects a danger of a link break to an upstream node and reestablishes a new route before a route break, to avoid route breaks. The improved AODV-RBA algorithm has a better perform- ance in Mobile Ad-hoc network, and it is more suitable for upper level applications in network layer, an algo- rithm based on AODV （Ad-hoc On-demand Distance Vector routing protocol） is proposed. Simulation results using NS2 show that the AODV-RBA protocol achieves a larger improvement in the network delay, packet loss rate and so on, it has stronger robustness and fault tolerance.

关 键 词：移动自组网络 AODV 路由中断 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]