B-ISDN中QoS路由模糊推理系统

E. Aboelela, C. Douligeris
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引用次数: 11

摘要

路由算法需要保证宽带综合业务数字网(B-ISDN)所支持的广泛应用所要求的各种服务质量(QoS)特性。然而,众所周知,这样一个路由问题,在任何可能的组合中具有两个或多个可加性或可乘性QoS度量是np完全的。本文提出了一种基于模糊逻辑的启发式方法。对于每个度量,定义一个模糊隶属函数来反映该度量的QoS要求。基于网络链路中可能使用的不同度量值的清晰值,实现了一个模糊推理规则库来生成每条路径的模糊代价。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fuzzy inference system for QoS routing in B-ISDN
Routing algorithms are required to guarantee the various quality of service (QoS) characteristics requested by the wide range of applications supported by broadband integrated services digital networks (B-ISDN). However, it is known that such a routing problem, with two or more additive or multiplicative QoS metrics in any possible combination is NP-complete. In this paper, we propose a heuristic approach based on fuzzy logic. For each metric, a fuzzy membership function is defined to reflect the QoS requirements from that metric. A fuzzy-inference rule base is implemented to generate the fuzzy cost of each path based on the crisp values of the different metrics possibly used in the network links.
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