A scalable on-demand video delivery paradigm

Abstract

Most existing on-demand video services, such as VoD, batching and patching, are not scalable. Although the near VoD service is scalable, it can provide only dozens of videos. A scalable video delivery paradigm, named scheduled video delivery (SVD), is described. In the SVD paradigm, users submit requests with specification of start time. The SVD system combines requests to form multicasting groups and schedules these groups to meet the deadline. SVD is not only scaled to the number of users but also to the number of video objects. Furthermore, SVD can serve more clients with mirroring proxies.