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基于协作缓存的分布式VOD组播调度

Multicasting Schedule in Distributed VOD System Based on Cooperative Cache
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摘要 分布式视频点播中的Cache控制机制是提高系统效率的核心技术,良好的缓存机制可以有效地减少用户的请求丢失率。提出了分布式VOD的一种新型层次化体系结构,采用两层Cache替换机制,将本地服务器机群所有节点内存连成一个全局的虚拟缓存,并给出视频文件基于该缓存的组播调度。 Caching control technology:the core of Distributed VOD (DVOD) improves system efficiency .Good job can absolutely diminish the loss of users requests . Propose a new hierarchical architectures which adopts double deck cache mechanisms used in two different hierarchies respectively. All of the nodes memory in local video servers combine a virtual cooperative cache. Also present the multicasting schedule design of video documents based on it.
作者 白霜 范学峰
出处 《计算机应用研究》 CSCD 北大核心 2005年第4期231-233,共3页 Application Research of Computers
关键词 存储模型 替换机制 虚拟协作缓存 请求损失率 组播调度 Architectures Mechanisms Virtual Cooperative Cache(VCC) Loss of Requests Multicasting Schedule
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