作者
Fan Zhai, Yiftach Eisenberg, Thrasyvoulos N Pappas, Randall Berry, Aggelos K Katsaggelos
发表日期
2004/5/17
研讨会论文
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing
卷号
5
页码范围
V-857
出版商
IEEE
简介
The problem of encoding and transmitting a video sequence over an IP-based wireless network, consisting of both wired and wireless links, is addressed. To combat the different types of packet loss in the heterogeneous network, the use of a product code forward error correction (FEC) scheme capable of providing unequal error protection is considered. At the transport layer, Reed-Solomon (RS) coding is used to provide inter-packet protection. In addition, rate-compatible punctured convolutional (RCPC) coding is used at the link layer to provide unequal intra-packet protection. Optimal bit allocation is performed in a rate-distortion optimized joint source-channel coding and power allocation framework to achieve the best video quality. Simulation results illustrate the advantage of the proposed product code FEC scheme over previously studied approaches.
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