延时拒绝模型下的异构无线网络接入选择  

Admission Selection Utilizing Delayed Rejection Model for Heterogeneous Wireless Networks

作　　者：王继红[1] 石文孝[1] 许银龙[1] 迟学芬[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《北京邮电大学学报》2014年第1期103-106,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61373124;61071074)

摘　　要：提出了一种延时拒绝模型下的异构无线网络接入选择算法(AS-DRM).通过引入缓冲存储器,允许弹性业务进入缓存器队列中排队等候,当有闲置资源时按照队列中的顺序依次获得服务.利用排队论建立了异构网络接入资源占用五维马尔可夫排队模型,并分析和评价系统性能.仿真结果表明,所提算法能明显降低弹性业务阻塞率,提高系统性能.An admission selection algorithm utilizing delayed rejection model for heterogeneous wireless networks （AS-DRM） was proposed. The concept of buffer was introduced, elastic services were allowed to wait in the buffer until they could be serviced successively. Five-dimensional Markov queuing model was built by queuing theory for resource occupied in heterogeneous networks. The system performance was analyzed and evaluated. Simulation shows that this algorithm evidently decreases the blocking rate for elastic services, and the system performance is improved.

关 键 词：延时拒绝 接入选择 资源栅格 异构网络 

分 类 号：TN929.53[电子电信—通信与信息系统]