移动通信系统中一种合作博弈CAC策略  

Cooperative Game Theory-Based CAC Strategy for Mobile Communication Systems

作　　者：张慧[1] 方旭明[1,2] 袁琴[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031 [2]南京大学计算机软件新技术国家重点实验室,江苏南京210093

出　　处：《软件学报》2011年第4期736-744,共9页Journal of Software

基　　金：国家自然科学基金(60772085);南京大学计算机软件新技术国家重点实验室开放基金(A200605)

摘　　要：由于无线频谱是极为有限的资源,呼叫接纳控制(call admission control,简称CAC)成为移动通信系统中无线资源管理的一个重要部分.针对流媒体对接入资源的过度占用问题,提出了一种基于合作博弈理论的CAC策略,博弈方是处于服务状态的业务和申请接入的新业务,基站是保证协议强制执行的外在力量,基站选择效用和最大的策略组作为博弈过程的最终结果.仿真结果表明,所提策略有效缓解了流媒体业务对资源的捕获效应,保证了用户接入的公平性,对于实际系统性能的改善具有重要的意义.Since the radio spectrum is a very scarce resource,the call admission control（CAC） is one of the most important parts in radio resource management of mobile communication systems.With the aim at resolving the problem of streaming a medium＇s over-use of resource,a cooperative game theory-based CAC strategy is proposed in this paper.The players are the services in connection,and a new service requests to access the system.The base station is the external power,which ensures the protocol operation.The results show that the capture effect of resource caused by streaming media is eased by adopting the CAC strategy;therefore,the access fairness is guaranteed.It is very significant to improve the performance of practical system applications.

关 键 词：呼叫接纳控制 公平性 博弈论 移动通信 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]