Multi-mode message passing switch networks applied for QC-LDPC decoder

Chih Hao Liu*, Chien Ching Lin, Hsie-Chia Chang, Chen-Yi Lee, Yarsun Hsu

*此作品的通信作者

    研究成果: Conference contribution同行評審

    17 引文 斯高帕斯(Scopus)

    摘要

    The multi-mode message passing switch networks for multi-standard QC-LDPC decoder are presented. An enhanced self-routing switch network with only one barrel shifter permutation structure and a shifter-based two-way duplicated switch network are proposed to support 19 and 3 different sub-matrices defined in IEEE 802.16e and IEEE 802.11n. These proposed switch networks can route the decoding message in parallel by different sizes without signal congestion. The enhanced self-routing switch network can switch the messages at different expansion factors with the lowest hardware complexity. Under the condition of a smaller expansion factor, the decoder throughput can be enhanced from the two-way duplicated switch network by increasing the parallelism. In the 130nm CMOS synthesis result, the proposed enhanced self-routing and the two-way duplicated switch network gate counts are 21.9k and 37.4k at 384MHz operation frequency.

    原文English
    主出版物標題2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
    頁面752-755
    頁數4
    DOIs
    出版狀態Published - 2008
    事件2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States
    持續時間: 18 5月 200821 5月 2008

    出版系列

    名字Proceedings - IEEE International Symposium on Circuits and Systems
    ISSN(列印)0271-4310

    Conference

    Conference2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
    國家/地區United States
    城市Seattle, WA
    期間18/05/0821/05/08

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