標題: | A 1.31Gb/s, 96.6% Utilization Stochastic Nonbinary LDPC Decoder for Small Cell Applications |
作者: | Lee, Xin-Ru Yang, Chih-Wen Chen, Chih-Lung Chang, Hsie-Chia Lee, Chen-Yi 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
公開日期: | 2015 |
摘要: | In this paper, an over Gb/s stochastic nonbinary LDPC (NB-LDPC) decoder chip is first-reported. The operation of proposed decoder is transformed to logarithm domain, so that the decoding complexity is mitigated by the simpler summations and fewer bit-width. In addition, the storage requirements are dramatically reduced by truncated TFM architecture. After, benefited from architecture optimizations and symbol-serial property, the routing capability of proposed decoder is extraordinarily enhanced. According to the measurement results, this decoder can deliver 1.31Gb/s throughput under 368MHz clock frequency with the corresponding energy-efficiency of 0.45nJ/bit. Compared to other NB-LDPC decoders, our stochastic NB-LDPC decoder with 96.6% chip utilization improves 2x area-efficiency and 7x energy-efficiency. |
URI: | http://hdl.handle.net/11536/135635 |
ISBN: | 978-1-4673-7472-9 |
ISSN: | 1930-8833 |
期刊: | ESSCIRC CONFERENCE 2015 - 41ST EUROPEAN SOLID-STATE CIRCUITS CONFERENCE (ESSCIRC) |
起始頁: | 96 |
結束頁: | 99 |
顯示於類別: | 會議論文 |