A QoS Routing Based on Fuzzy Cost for Broadband Networks

Abstract

Abstract: 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.

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．

关键词: 路由选择, 模糊逻辑, 模糊代价, 服务质量

CLC Number:

TN915

XUE Zhi, SHI Jianjun, GU Shangjie. A QoS Routing Based on Fuzzy Cost for Broadband Networks[J]. , 2000, 26(10): 36-37.

薛质,施建俊,顾尚杰. 宽带网中基于模糊代价的QoS路由选择[J]. , 2000, 26(10): 36-37.

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