VoD服务的最优前缀复制策略
An Optimal Prefix Replication Strategy for VoD Services
摘要：
在本文中，我们提出了可扩展的代理服务器集群结构的互连代理服务器的高质量和高可用性的服务。我们还提出了一个最佳的区域流行度为基础的视频前缀复制策略和场景变化为基础的副本缓存算法，利用zipf的视频流行度分布，以最大限度地提高视频的可用性更接近客户端和请求服务率，从而降低客户端的拒绝率和响应时间的客户端。我们提出的架构和算法的模拟结果显示，更大的成就，在最大限度地提高视频的可用性，客户端请求服务率和减少初始启动延迟和客户端拒绝率。
英文摘要：
In this paper we propose scalable proxy servers cluster architecture of interconnected proxy servers for high quality and high availability services. We also propose an optimal regional popularity based video prefix replication strategy and a scene change based replica caching algorithm that utilizes the zipf-like video popularity distribution to maximize the availability of videos closer to the client and request-servicing rate thereby reducing the client rejection ratio and the response time for the client. The simulation results of our proposed architecture and algorithm show the greater achievement in maximizing the availability of videos, client request-servicing rate and in reduction of initial start-up latency and client rejection ratio.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
