作　　者： ; ; ;

机构地区： 北京邮电大学电信工程学院信息与通信工程学院

出　　处： 《北京邮电大学学报》 2007年第2期71-75,共5页

摘　　要： 利用模糊层次分析法对无线局域网(WLAN)和通用移动通信系统(UMTS)组成的集成网络中面临的网络选择问题进行了研究,提出了一种结合层次分析法和模糊综合评价法的网络选择新算法.通过对影响集成系统网络选择因素进行分析,建立了网络选择决策模型,计算出了各因素的权重;通过对模糊综合评价模型的分析,提出了计算相对隶属度的方法;由各因素相对隶属度和权重计算总隶属度,并据此选择最优网络.仿真结果验证了该算法的正确性与有效性. Network selection problem in wireless local area network （WLAN） and universal mobile telecommunications system（UMTS） integrated network was studied using fuzzy analytic hierarchy process. A novel network selection algorithm was proposed. It combines analytic hierarchy process and fuzzy comprehensive evaluation. By analyzing the factors that influence network selection in integrated systems, a network selection decision-making model was founded and the weights of these factors were calculated. A method for calculating relative-membership grade was proposed by analysis of fuzzy comprehensive evaluation model. Total membership grade was calculated through relative-membership grade and the weights of these factors. The optimum network was selected according to total membership grade. The validity and accuracy of the algorithm was confirmed by the simulation.

关 键 词： 网络选择 模糊层次分析法 异构网络

领　　域： [电子电信] [电子电信]