摘要
提出了一种具有伸缩性的视频点播(SVOD)系统,该系统可使服务开始时间与服务请求时间相分离,并允许用户设定所需服务的持续时间。如果在用户请求时刻,其服务质量不能得到保证,SVOD将会计算出能以用户期望的QoS播放影片的最早时间,这一时间会受到是否利用多点通信方式向多用户传送同一部影片的影响。
In this paper, we propose a scalable VOD(SVOD) system which decouples the starting time of the service from the service request made and requires that the duration of the requested service must be specified. If the requested QoS cannot be supported at the time the service request is made, SVOD allows to compute the earliest time, when the user can play the movie with the desired QoS. This time can also be determined in a way to use multicast communication to deliver the same movie to several users.
出处
《电视技术》
北大核心
2000年第7期26-30,共5页
Video Engineering
基金
山东省自然科学基金!Q99G11
关键词
视频点播
多点通信
视频服务器
资源预约
video-on-demand
future reservation
multicast communication
quality of service
video server