用于交互式应用程序的带有LDGM代码的DSL视频

2015 7th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2015-11-23 DOI:10.3390/computers5020009

L. Al-Jobouri, Filippo Casu, M. Fleury, J. Cabrera

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引用次数: 1

摘要

数字用户线路(DSL)网络访问受到突发错误的影响，这对于交互式视频来说，如果需要重发视频数据包，可能会引入不可接受的延迟。如果使用前向纠错(Forward Error Correction, FEC)来保护视频包免受错误的影响，那么应用层信道代码本身的计算也可能引入额外的延迟。本文提出了低密度生成器代码(LDGM)，而不是其他流行的代码，因为它不仅计算简单，而且具有许可优势，更适合于交互式视频流。本文证明了LDGM应用层(AL) FEC可以实现高达4 dB的视频失真降低。远程医疗和视频会议是典型的目标应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Video over DSL with LDGM codes for interactive applications

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.

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2015 7th Computer Science and Electronic Engineering Conference (CEEC)

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