移动环境下扩展的基于策略的网管(PBNM)模型的动态资源分配  

Dynamic resource allocation of extended policy based network management (PBNM) model in mobile environment

作　　者：刘雪洁[1,2] 刘衍珩[1,2] 李木山 李岩[1] 官健[1] 

机构地区：[1]吉林大学计算机科学与技术学院,长春130012 [2]吉林大学符号计算与知识工程教育部重点实验室,长春130012 [3]同方股份有限公司长春分公司,长春130012

出　　处：《吉林大学学报（工学版）》2010年第1期176-182,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(60573128)

摘　　要：针对传统静态策略中条件和动作都是确定的,不能很好地适应网络状态变化的问题,提出了一种基于扩展PBNM模型的移动环境下动态资源分配方案,增加了在运行期根据网络状态对策略进行更新的组件,并给出了动态资源分配的方法。通过实验,采用扩展PBNM模型及动态的策略形式对网络资源进行分配,降低了实时新业务的阻塞率和实时切换业务的掉线率,提高了网络资源的利用率,相对于传统资源分配方法更灵活。The conditions and actions of traditional static policies are constant, which leads to less preferable adaptability to the change of network state. In this paper, a dynamic resource allocation scheme based on extended PBNM model in mobile environment is proposed. This scheme applies the policy with dynamic format and improves the conventional PBNM model by adding the modules that can update policies during runtime according to network state. The method for dynamic resource allocation is described. Experiment and analysis show that this scheme decrease the probabilities of handoff call dropping and new call blocking, while, increases the utilization rate of network resources, which is more flexible compared with traditional resource allocation method.

关 键 词：计算机应用 基于策略的网络管理(PBNM) 资源分配 服务质量 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]