摘要： 视频流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。该文研究了已有的多种流调度技术并分析了各种调度方法的优劣,在此基础上以补丁算法为基础提出了一种支持零延迟交互式操作的调度方法,并实验证明了这种方法在用户延迟、带宽消耗等方面的优越性。

关键词: 视频流, 调度策略, 多播, VCR

Abstract: Scheme for scheduling video stream is one of the key techniques for using I/O bandwidth and network bandwidth effectively. This paper studies several scheduling techniques and analyzes their advantages and disadvantages, then proposes a new patching-based scheme which can support zero- delay VCR replay. Simulation verifies its performances well in user delay and bandwidth use.

中图分类号: 

• TN948.64