Unequal packet loss protection for layered video transmission
Unequal packet loss protection for layered video transmission
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DOI：
10.1109/11.796266
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发表时间：
1999-06
期刊：
影响因子：
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通讯作者：
Tingting Zhang;Y. Xu
中科院分区：
文献类型：
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作者：
Tingting Zhang;Y. Xu
介绍了一种通用的分层视频传输模型。分析了不同层丢包对图像重建的影响。提出了分层视频的不等丢包保护（UPLP）应用，并对其性能进行了研究。描述了UPLP参数设计的算法。数值分析表明，在不增加网络结构复杂度的前提下，不等丢包保护可以显著提高重构图像的丢包率意义上的通信质量。它还表明，UPLP的应用程序可以实现更有效的带宽利用率比ARQ协议的应用程序。该技术适用于异构网络中的多媒体多播，以及支持具有不同分辨率和信号处理能力的各种接收器的数字视频广播系统。
A general model for the transmission of layered video is introduced. The effect of packet dropping in different layers on the reconstruction of pictures is analysed. The application of unequal packet loss protection (UPLP) for layered video is proposed and the performance is investigated. An algorithm for the design of the UPLP parameters is described. The numerical analysis shows that the unequal packet loss protection can significantly improve the communication quality, in the sense of packet loss rate on reconstructing pictures, without any additional complexity in the network infrastructure. It is also shown that application of UPLP can achieve a more efficient bandwidth utilization than the application of ARQ protocols. This technique is suitable for multimedia multicasting in heterogeneous networks, as well as for digital video broadcasting systems which support a variety of receivers with different resolutions and signal processing powers.