摘要
视频节目的调度策略是视频点播系统中有效使用存储资源和网络资源的关键技术,优化的节目调度和管理可以极大的提高视频服务器的性能。根据流行度来划分视频节目的优先级,提出了一种视频节目调度算法——可移动边界保护信道法(MBGC),并设计了一个二维的Markov链对算法的性能进行了理论上的分析,最后的数值分析结果表明,提出的算法提高了系统的性能。
Scheme for scheduling video programs is one of the key techniques for using I/O bandwidth and network bandwidth effectively.Optimized program scheduling can dramatically improve the video server＇s pefformanee.In the paper,we describe a system called popularity based on video program,and give a method of scheduling video programs-Movable Boundary and Guard Channel （MBGC）.We propose a two-dimension Markov chain to investigate the performance of the scheme.We analyze the model through use of simulation with Matlab6.5.The result shows that the proposed scheme improves the system performances.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第10期219-221,共3页
Computer Engineering and Applications
