一种满足QoS约束的自适应多径Ad Hoc网络路由协议  

A QoS-Aware Adaptive Multipath Routing Protocol in Ad Hoc Networks

作　　者：刘永强[1,2] 严伟[1,2] 代亚非[1,2] 

机构地区：[1]北京大学计算机科学与技术系,北京100871 [2]北京大学信息学院网络与分布式实验室,北京100871

出　　处：《计算机学报》2006年第5期681-689,共9页Chinese Journal of Computers

基　　金：思科教育科研资助计划资助

摘　　要：提出一种以网关为中心的满足QoS约束的自适应多径路由协议GCAQMR.该协议不仅保证建立从源节点到网关的链路不相交的多条路由,同时使中间节点也保留到网关的多径路由信息,当网络拥塞或路径失效时,中间节点根据这些信息可自适应地进行路由调整.模拟实验表明:采用GCAQMR协议的SWAN系统在报文转发率、平均端到端时延、实时业务公平性以及端到端平均吞吐量等性能指标上,均优于基于AODV协议的SWAN系统.Based on QoS framework-SWAN, A Gateway-Centric Adaptive QoS-aware Multipath Routing protocol （GC AQMR） is presented. It can ensure that each mobile node has a set of link-disjoint and loop-free routing to the gateway. Moreover, the intermediate node in the path also has the multipath information to the gateway. When the intermediate node experiences the congestion or link-break, it can switch adaptively to an alternate path with the additional path information. Simulations have shown that the SWAN system adopting GC-AQMR outperforms the SWAN with AODV protocol on all the performance metrics： Packet delivery ratio, average end-to end delay/throughput and the fairness among real-time flows.

关 键 词：QoS 自适应多径路由协议 Ad HOC网络 AODV协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]