基于模糊层次分析法的网络业务性能评估模型

Evaluation model of network service performance based on fuzzy analytic hierarchy process

针对现有网络性能评估方案不能兼顾用户的业务偏好和网络实际情况以及指标权重计算方法存在片面性的问题,提出一种面向网络业务性能的综合评价模型。该模型考虑到用户偏好,以网络应用业务为导向,首先建立一种评价层次结构,分别确立层次结构中的准则权重和方案权重;然后对实际测量数据进行规格化处理;最后利用模糊层次分析法(AHP)进行计算得到目标链路中各业务的性能评估值。实验结果表明,所提模型不仅可以评估目标链路的整体性能情况,还可以结合用户业务偏好,对单个的网络业务的性能进行有效评估,有利于更好地实现区分服务的网络。

A service-oriented network performance comprehensive evaluation model based on fuzzy Analytic Hierarchy Process （AHP） was put forward in order to take account of users＇ preference and the actual network situation, and to solve the problem of the one-sidedness index weight calculation. According to users＇ preference, the model took application services as the guidance： firstly set up an evaluating hierarchy, separately handled the criteria weight and the scheme weight, then normalized the actual measurement data; finally obtained the application performance evaluation value of the target link by using the fuzzy AHP. The experimental results show that the proposed method not only can evaluate the whole performance of the target link, but also can effectively assess the performance of the network application services combined with users＇ preference, which is more favorable for achieving the differentiated service network.