A full layer parallel QC-LDPC decoder for WiMAX and Wi-Fi

Wenchao Zhang, Song Chen, Xuefei Bai, Dajiang Zhou

    研究成果: Conference contribution

    4 引用 (Scopus)

    抜粋

    This paper presents a full layer parallel quasi-cyclic low density parity check (QC-LDPC) code decoder for IEEE 802.16e (WiMAX) and IEEE 802.11n (Wi-Fi). By adopting three techniques including reusable fully parallel check node unit (CNU) structure, path rerouting network (PRN) and reusable permutation network (PN), the proposed decoder gets Gbps level throughput and could support two standards and most code modes of them with low hardware cost. By using turbo-decoding message-passing normalized min-sum (TDMP-NMS) decoding strategy, the bit error rate (BER) of the proposed decoder is decreasing fast to 10-5 at 2.2 dB. It only takes 30∼40/30∼60 clock cycles in each decoding iteration for WiMAX/Wi-Fi. Using SMIC 40nm low leakage HS RVT CMOS process and 7-bit quantization, the proposed decoder attains 789∼2227/470∼1879 Mbps for WiMAX/Wi-Fi at 290 MHz, 10 iterations, and only occupies 2.26 mm2 area.

    元の言語English
    ホスト出版物のタイトルProceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015
    出版者Institute of Electrical and Electronics Engineers Inc.
    ISBN(電子版)9781479984831
    DOI
    出版物ステータスPublished - 2016 7 19
    イベント11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015 - Chengdu, China
    継続期間: 2015 11 32015 11 6

    Other

    Other11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015
    China
    Chengdu
    期間15/11/315/11/6

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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  • これを引用

    Zhang, W., Chen, S., Bai, X., & Zhou, D. (2016). A full layer parallel QC-LDPC decoder for WiMAX and Wi-Fi. : Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015 [7517004] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ASICON.2015.7517004