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