Video over DSL with LDGM Codes for Interactive Applications

被引：0
|
作者：
Casu, Filippo [1 ]
Cabrera, Julian [1 ]
Al-Jobouri, Laith [2 ]
Fleury, Martin [2 ]
机构：
[1] Univ Politecn Madrid, Grp Tratamiento Imagenes, Madrid, Spain
[2] Univ Essex, Sch Comp Sci & Elect Engn, Colchester CO4 3SQ, Essex, England
来源：
2015 7TH COMPUTER SCIENCE AND ELECTRONIC ENGINEERING CONFERENCE (CEEC) | 2015年
关键词：
DSL; FEC; low latency; packet loss; video streaming; LOW-DENSITY; EFFICIENCY; SYSTEM; IPTV; FEC;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Digital Subscriber Line (DSL) network access is subject to error bursts, which, for interactive video, can introduce unacceptable latencies if video packets need to be resent. If the video packets are protected against errors with Forward Error Correction (FEC) calculation of the application-layer channel codes themselves may also introduce additional latency. This paper proposes Low-Density Generator Codes (LDGM) rather than other popular codes because they are more suitable for interactive video streaming not only for their computational simplicity but also for their licensing advantage. The paper demonstrates that up to a 4 dB reduction in video distortion is achievable with LDGM Application Layer (AL) FEC. Telemedicine and video conferencing are typical target applications.
引用
收藏
页码：161 / 166
页数：6
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