层次视频多播中的自适应

针对异构和动态网络环境中的层次视频多播，本文提出基于归并反馈的层次视频编码自适应机制，以解决网络带宽约束的动态变化问题；分析了该自适应机制的响应特性、可伸缩特性和实现复杂度。结果表明该自适应机制能支持高质量的、自适应的层次视频多播服务，而且具有很高的可伸缩性和极小的实现复杂度。

Adaptation in Layered Video Multicast

For layered video multicast in heterogeneous and dynamic networks,this paper presents an adaptive layered video encoding mechanism based on merging feedback,which is used to solve the problem of the variation of network bandwidth constraints.The responsibility,scalability and complexity of the adaptive mechanism are evaluated.Results suggest the adaptive mechanism is capable of providing a high quality and adaptive layered video multicast service with very high scalability and very small complexity.