摘要
为了在当今业务种类繁多的移动通信系统中更好地满足各种用户的业务服务质量保障需求,提出了一种基于M/P/C/C的自相似优先权排队模型,并对基于强占优先权以及非强占优先权的呼损性能进行了仿真分析。由仿真结果可知,不论信道资源充足与否,两种优先权策略均实现了对不同属性用户业务有差别的服务,且基于强占优先权策略更能保障高优先级业务的服务质量,但是以降低低优先级业务的服务质量为代价的。
A self-similarity queuing model based on M/P/C/C is proposed in this paper to meet the QoS needs of the various useres in the mobile communication system. The simulation analysis was performed based on preemptive priority and non-preemp-tive priority call blocking performance. The simulation results show,no matter that the channel resources is adequate or not, both of the two strategies can achieve a differentiated business services for different user attributes and the quality of high priori-ty service can be guaranteed on the basis of preemptive priority policies,but QOS of priority service level is reduced.
出处
《现代电子技术》
2014年第20期22-26,共5页
Modern Electronics Technique
关键词
优先权
排队论
自相似业务
呼叫损失概率
业务服务质量
priority
queuing theory
self-similarity traffic service
call blocking probability
QoS
