异质网络环境中的视频主动分级多播

Active-Classifying Video Multicast in Heterogeneous Environment

提出了一种基于RSVP(资源预留协议)和MPEG-4的可扩缩性的视频主动分级多播方案。在集成服务环境中,该方案通过检测网络QoS来判断不同用户所能接收的视频QoS,并使用RSVP在分流节点上实现分级投递。实验结果表明,视频主动分级多播能够充分利用网络资源的同时避免网络拥塞,使得每个用户都能得到合适的服务。

In the paper we propose an active - classifying multicasting model based on the RSVP and the scalability of MPEG -4. In the Integrated Services environment, the model estimates the QoS of the network of different users and realizes the classified delivery in the intermedial node. The performance of the application views that the actively classified video multicast makes the best use of net bandwidth while avoiding congestions, and can make each user of multicast get satisfactory service.