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Research on Congestion Control Algorithm of Video Transmission Based on Layered Multicast
Author(s): 
Pages: 78-82
Year: Issue:  5
Journal: Telecommunications Science

Keyword:  视频传输分层多播异构性优先缓;
Abstract: 分层多播以多速率方式解决了多播接收者异构性问题,对于提高网络服务质量具有重要意义.本文分析了分层多播传输特性,通过提取MPEG视频流中的I帧、P帧、B帧组成3个帧流.分别放到分层多播的基层、增强层1和增强层2上传输,并在中间节点采用优先级队列机制.提出了一种面向视频流传输的分层多播拥塞控制(VLMCC)算法.仿真实验表明,本文提出的VLMCC算法能够适应视频多播接收者的异构性,大大提高了视频多播传...
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