DVB-T2 LDPC decoder with perfect conflict resolution

Xiongxin Zhao, Zhixiang Chen, Xiao Peng, Dajiang Zhou, Satoshi Goto

    研究成果: Conference contribution

    5 被引用数 (Scopus)

    抄録

    In this paper we focus on the resolution of the message updating conflict problem in layered algorithm for DVB-T2 LDPC decoders. Unlike the previous resolutions, we directly implement the layered algorithm without modifying the parity-check matrices (PCM) or the decoding algorithm. DVB-T2 LDPC decoder architecture is also proposed in this paper with two new techniques which guarantee conflict-free layered decoding. The PCM Rearrange technique reduces the number of conflicts and eliminates all of data dependency problems between layers to ensure high pipeline efficiency. The Layer Division technique deals with all remaining conflicts with a well-designed decoding schedule. Experiment results show that compared to state-of-the-art works we achieve a slight error-correcting performance gain for DVB-T2 LDPC codes.

    本文言語English
    ホスト出版物のタイトル2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Proceedings of Technical Papers
    DOI
    出版ステータスPublished - 2012
    イベント2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012 - Hsinchu
    継続期間: 2012 4 232012 4 25

    Other

    Other2012 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2012
    CityHsinchu
    Period12/4/2312/4/25

    ASJC Scopus subject areas

    • Hardware and Architecture

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