自适应QoS业务对移动网容量改善的研究  

Capacity Gain of Mobile Network Using Adaptive QoS Service

作　　者：赵鹏[1] 张惠民[1] 

机构地区：[1]北京邮电大学信息工程学院,北京100876

出　　处：《北京邮电大学学报》2002年第3期17-21,共5页Journal of Beijing University of Posts and Telecommunications

摘　　要：定义了参数 PD 近似描述自适应业务的服务质量 ,并使用 M/ M/ m(m)模型对使用自适应Qo S业务时的小区容量进行了数值分析 ,获得了自适应业务的 Qo S和呼损、系统容量以及系统效率的互换关系 ,表明使用自适应业务可以通过主动降低其 Qo S而有效地增加网络容量和系统效率 ,并降低呼损率 .The adaptive QoS service in a mobile network can improve the system capacity by decreasing its source rate when the network is busy. This merit is especially important when broadband services are provided. A new parameter PD is defined to approximately describe the QoS of adaptive service, and the cell capacity with adaptive service is analyzed using a M/M/m(m) queuing model. The trade-off relationship between the QoS of adaptive service and call block ratio, system capacity, system efficiency is illustrated. The numeric result shows that using the adaptive QoS service, the capacity and efficiency can be effectively improved and the call block ratio can be largely reduced.

关 键 词：移动通信网 服务质量 自适应QoS业务 网络容量 

分 类 号：TN929.5[电子电信—通信与信息系统] TN915.01[电子电信—信息与通信工程]