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.
出处
《计算机学报》
EI
CSCD
北大核心
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