Interactive video coding and transmission over wired-to-wireless IP networks using an edge proxy

被引:0
|
作者
Pei, Y [1 ]
Modestino, JW [1 ]
机构
[1] Univ Miami, Dept Elect & Comp Engn, Coral Gables, FL 33124 USA
关键词
video transmission; RTP; UDP/IP; RS codes; RCPC; codes; joint source-channel coding; H.263+;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper, we address the problem of enabling robust interactive video coding and transmission over heterogeneous wired-to-wireless IP networks. We propose the use of an FEC coding scheme employing Reed-Solomon (RS) codes and rate-compatible punctured convolutional (RCPC) codes to protect the video data from packet loss and bit errors, respectively. Furthermore, we apply an end-to-end architecture using an edge proxy in a mobile support station to implement differential error protection for the corresponding channel impairments expected on the two networks. Results indicate that with an appropriate joint source-channel coding approach and the use of an edge proxy, FEC-based error-control techniques together with passive error-recovery techniques can significantly improve the effective video throughput and lead to acceptable video delivery quality over time-varying heterogeneous wired-to-wireless IP networks.
引用
收藏
页码:437 / 440
页数:4
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