基于应用层的实时媒体流多播QoS的自适应方法

该文提出的应用层多播QoS自适应方法建立在由多个单播HPF路径构成的多播树基础上,多播组成员节点在一个HPF会话中是接收者,而可能在其它一些HPF会话中作为转发器。多播树由最大瓶颈带宽生成树算法生成,媒体流的传输协议采用HPF,由最大瓶颈带宽生成树上的分支节点作转发器来实现速率自适应和包丢弃算法,以达到整个多播组的平均带宽利用最大化。

An Application-level Based Adaptation Approach for Real-time Multimedia Multicast QoS

This paper proposes a scheme for Application-level Multicast QoS which set up the Multicast sessions over a set of unicast HPF sessions.A Multicast group member maybe as receiver in one session,while implements a forwarding behavior in another.Multicast delivery tree is generated by Maximal Bottleneck Tree(MBT) algorithm and media stream's delivery employs HPF protocol.Rate adaptation and priority-based filtering are carried out on fork node of the MBT.So people can obtain the maximum efficiency of the group's average bandwith.