Providing Interactive VOD Services for Popular Video

本计划研究各种方案，为流行影片提供可负担及互动的视讯点播服务。这些视频包括“热门”新闻报道、热门体育赛事、精选讲座或最近上映的电影。本研究的第一个目标是了解各种资源（如服务器I/O带宽、客户机缓冲区大小和客户机I/O带宽）之间的权衡。所有这些权衡问题在设计视频服务器时都很重要，因为在未来的多媒体应用程序中，服务提供商可能会补贴用户端机顶盒的成本，如果它具有成本效益的话。研究的第二个目标是为用户提供交互式服务。交互式服务，包括像录像机一样的功能，如暂停、恢复、倒带和前进，使任何内容都可以在指尖触摸下获得。这项研究包括提供适时互动服务的资源分配计划。项目详细介绍请参考a HREF = "http://cs.smith.edu/~gao/research/ivod.html"为热门视频/ a提供互动视频点播服务。作为多媒体网络领域的新研究人员，PI将在计划期间以第一个目标为中心，为第二个目标奠定基础。PI计划在规划期结束前提交一份完整的提案。

This project studies various schemes that provide affordable and interactive Video-on-Demand (VOD) services for popular videos. These videos include ``hot'' news coverage, popular sport events, tapped lectures, or recently released movies. The first goal of the study is to understand the tradeoff among various resources such as server I/O bandwidth, client buffer size, and client I/O bandwidth. All these tradeoff issues are important in designing a video server since, in future multimedia applications, service providers might subsidize the cost of the set-top box at a user's side if it is cost effective. The second goal of the study is to provide interactive services to users. The interactive services, which include VCR like functions such as pause, resume, rewind and forward, make any content available under the touch of a fingertip. The study includes resource allocation schemes for providing timely interactive services. For a full description of the project, please refer to the web page A HREF = "http://cs.smith.edu/~gao/research/ivod.html"Providing interactive VOD services for popular videos/A. As a new researcher in the area of multimedia networks, the PI will focus on the first goal and set a stage for the second goal during the planning period. The PI plans to submit a full proposal by the end of the planning period.