文章基本信息

标题：A High Throughput LDPC Decoder Design Based on Novel Delta-value Message-passing Schedule
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作者：Wen Ji ; Xing Li ; Takeshi Ikenaga 等
期刊名称：Information and Media Technologies
电子版ISSN：1881-0896
出版年度：2009
卷号：4
期号：2
页码：261-269
DOI：10.11185/imt.4.261
出版社：Information and Media Technologies Editorial Board
摘要：In this paper, we propose a partially-parallel irregular LDPC decoder for IEEE 802.11n standard targeting high throughput applications. The proposed decoder has several merits: (i) The decoder is designed based on a novel delta-value based message passing algorithm which facilitates the decoding throughput by redundant computation removal. (ii) Techniques such as binary sorting, parallel column operation, high performance pipelining are used to further speed up the message-passing procedure. The synthesis result in TSMC 0.18 CMOS technology demonstrates that for (648, 324) irregular LDPC code, our decoder can achieve 8 times increasement in throughput, reaching 418Mbps at the frequency of 200MHz.