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首页> 外文期刊>Journal of electronic imaging >Joint-source-channel coding scheme for scalable video-coding-based digital video broadcasting, second generation satellite broadcasting system
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Joint-source-channel coding scheme for scalable video-coding-based digital video broadcasting, second generation satellite broadcasting system

机译:基于可伸缩视频编码的数字视频广播,第二代卫星广播系统的联合源信道编码方案

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摘要

We propose a joint-source-channel coding (JSCC) scheme that can provide and sustain high-quality video service in spite of deteriorated transmission channel conditions of the second generation of the digital video broadcasting (DVB-S2) satellite broadcasting service. Especially by combining the layered characteristics of the SVC (scalable video coding) video and the robust channel coding capability of LDPC (low-density parity check) employed for DVB-S2, a new concept of JSCC for digital satellite broadcasting service is developed. Rain attenuation in high-frequency bands such as the Ka band is a major factor for lowering the link capacity in satellite broadcasting service. Therefore, it is necessary to devise a new technology to dynamically manage the rain attenuation by adopting a JSCC scheme that can apply variable code rates for both source and channel coding. For this purpose, we develop a JSCC scheme by combining SVC and LDPC, and prove the performance of the proposed JSCC scheme by extensive simulations where SVC coded video is transmitted over various error-prone channels with AWGN (additive white Gaussian noise) patterns in DVB-S2 broadcasting service.
机译:我们提出了一种联合源信道编码(JSCC)方案,尽管第二代数字视频广播(DVB-S2)卫星广播服务的传输信道条件恶化,也可以提供并维持高质量的视频服务。特别是通过将SVC(可伸缩视频编码)视频的分层特性与DVB-S2所采用的LDPC(低密度奇偶校验)的强大信道编码能力相结合,开发了一种用于数字卫星广播服务的JSCC新概念。在诸如Ka频带的高频带中的雨衰是降低卫星广播服务中的链路容量的主要因素。因此,有必要设计一种新技术来通过采用可以将可变码率应用于源编码和信道编码的JSCC方案来动态管理降雨衰减。为此,我们通过结合SVC和LDPC来开发JSCC方案,并通过广泛的仿真证明了建议的JSCC方案的性能,在DVB中,通过AWGN(加性高斯白噪声)模式在各种易错信道上传输SVC编码视频-S2广播服务。

著录项

  • 来源
    《Journal of electronic imaging 》 |2010年第4期| p.043020.1-043020.16| 共16页
  • 作者单位

    Yonsei University Computer and Telecommunications Engineering Division Wonju, Gangwon 220-710 Republic of Korea;

    Yonsei University Computer and Telecommunications Engineering Division Wonju, Gangwon 220-710 Republic of Korea;

    Electronics and Telecommunications Research Institute Yuseong-gu, Daejeon 305-700 Republic of Korea;

    Electronics and Telecommunications Research Institute Yuseong-gu, Daejeon 305-700 Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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