基于云模型和熵权的网络性能综合评估模型  

Network performance comprehensive evaluation model based on cloud model and entropy weight

作　　者：罗赟骞[1] 夏靖波[1,2] 陈天平[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077 [2]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071

出　　处：《重庆邮电大学学报（自然科学版）》2009年第6期771-775,共5页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家综合业务网理论及关键技术重点实验室开放基金(ISN-9-08)

摘　　要：针对网络性能评估中存在的模糊性和随机性问题,采用云模型和熵值理论,建立了基于云模型和熵权的网络性能综合评估模型;采用熵权方法计算各指标权重,为权重确定提供理论依据;采用云模型理论实现评语与评估指标值之间的不确定映射,保留了评估过程中的随机性。以VoIP网络为例采用仿真的方法对模型进行验证,结果表明该模型与普通模糊综合法相比不仅能得到正确的评估结果,而且能得出其概率值。The network performance comprehensive evaluation model based on the cloud model and entropy theory was presented to solve the fuzzy and random problem in performance evaluation. The entropy weight method was used to compute the evaluation factors＇ weights. The method makes the weight determination reseanable. The cloud model was used to realize the uncertain map between comment and evaluation factor value. The method keeps the uncertainty in evaluation. A case study using simulation method was implemented in VoIP network. Compared with the normal fuzzy evaluation method, the model achieves the right evaluation result and its probability.

关 键 词：网络管理 综合评估 云模型 熵权 

分 类 号：TN915.07[电子电信—通信与信息系统]