宽带网中基于模糊代价的QoS路由选择  

A QoS Routing Based on Fuzzy Cost for Broadband Networks

作　　者：薛质[1] 施建俊[1] 顾尚杰[1] 

机构地区：[1]上海交通大学现代通信研究所,上海200030

出　　处：《计算机工程》2000年第10期36-37,共2页Computer Engineering

基　　金：上海邮电管理局-上海交通大学联合信息技术实验室资助!(1999-GR1-3)

摘　　要：提出了模糊路由选择（ＱｏＳ－ＦＲ）模型，定义一组隶属函数来反映对某个度量值的ＱｏＳ要求，基于模糊规则推理出每条路径的模糊代价．ＱｏＳ－ＦＲ在全网范围内均衡负载，从而减小了链路上拥塞的概率．仿真结果表明，在保证ＱｏＳ的前提下，该方法可获得更高的链路利用率和更大的吞吐量．In this paper. a fuzzy QoS routing (QoS-FR) model is proposed. A set of membership function is defined to reflect the QoS requirements for each metric. Based on fuzzy rules, a reasonable fuzzy cost is inferred and assigned to each path. The QoS-FR model takes into consideration the balancing of the load in the network to avoid congestion. Simulation results demonstrate that the proposed QoS-FR can produce high throughput and superior link utilization while keeping the QoS guarantee.

关 键 词：路由选择 模糊逻辑 模糊代价 宽带网 

分 类 号：TN915.142[电子电信—通信与信息系统]