一种通过动态缓冲区分配实现组播前缀VoD的策略
A Strategy to enable Prefix of Multicast VoD through dynamic buffer allocation
摘要：
在本文中，我们提出了一个动态的缓冲区分配算法的前缀，根据流行的视频。为最流行的视频分配更多的缓存块，为不太流行的视频分配一些缓存块。缓冲器利用率也被最大化，而与视频点播系统上的负载无关。过载会导致服务器变慢。通过存储流行视频剪辑的前几秒，多媒体本地服务器可以保护用户免受本地服务器和中央服务器之间的路径的延迟、吞吐量和丢失特性的影响。受控多播的关键思想是允许客户端共享视频流的一个片段，即使请求在不同的时间到达。对该动态缓冲区分配算法进行了仿真，并根据多媒体服务器的缓冲区利用率和最流行视频的平均缓冲区分配率对其性能进行了评估。我们的模拟结果表明，有效地利用网络带宽和减少硬盘利用率，从而导致增加的请求被服务的数量。
英文摘要：
In this paper we have proposed a dynamic buffer allocation algorithm for the prefix, based on the popularity of the videos. More cache blocks are allocated for most popular videos and a few cache blocks are allocated for less popular videos. Buffer utilization is also maximized irrespective of the load on the Video-on-Demand system. Overload can lead the server getting slowed down. By storing the first few seconds of popular video clips, a multimedia local server can shield the users from the delay, throughput, and loss properties of the path between the local server and the central server. The key idea of controlled multicast is used to allow clients to share a segment of a video stream even when the requests arrive at different times. This dynamic buffer allocation algorithm is simulated and its performance is evaluated based on the buffer utilization by multimedia servers and average buffer allocation for the most popular videos. Our simulation results shows efficient utilization of network bandwidth and reduced hard disk utilization hence resulting in increase in the number of requests being served.
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。
