摘要
提出基于混合网络的时移系统网络模型——TSBHN来描述移动多媒体广播上的时移系统,并采用排队论进行建模分析。针对时移业务特殊应用场景,从功能上将时移系统分为两个子系统M和S,并引入了广播同步率R来进行系统性能分析。分析结果表明,两个子系统的用户请求平均服务率可以根据广播同步率R进行调整,从而优化时移系统性能。
TSBHN（ Time -shifting System Based on Hybrid Network） is proposed to describe the time -shifting system of mobile multimedia broadcasting, which is modeled by queuing theory. Taking the specific scenario for time - shifting service into consideration, time - shifting system is functionally divided into two subsystems： M and S, and parameter R, which is introduced to describe the synchronization rate of time - shifting data with broadcasting, is used in performance analysis. The analysis result shows that the average service rates of the two subsystems can be adjusted according to R to optimize the performance of time - shifting system.
出处
《微计算机应用》
2009年第8期50-55,共6页
Microcomputer Applications
基金
863探索计划资助 课题名称:支持三重业务的电视无线回传关健技术与双向化方案研究(课题编号:2007AA01Z230)
关键词
混合网络
时移系统
排队论
广播同步率
Hybrid network, Time -shifting system, Queuing theory, Synchronization rate with broadcasting
