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Hardware Implementation of Euclidean Projection Module Based on Simplified LSA for ADMM Decoding

Yujin ZHENG, Junwei ZHANG, Yan LIN, Qinglin ZHANG, Qiaoqiao XIA

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Summary :

The Euclidean projection operation is the most complex and time-consuming of the alternating direction method of multipliers (ADMM) decoding algorithms, resulting in a large number of resources when deployed on hardware platforms. We propose a simplified line segment projection algorithm (SLSA) and present the hardware design and the quantization scheme of the SLSA. In simulation results, the proposed SLSA module has a better performance than the original algorithm with the same fixed bitwidths due to the centrosymmetric structure of SLSA. Furthermore, the proposed SLSA module with a simpler structure without hypercube projection can reduce time consuming by up to 72.2% and reduce hardware resource usage by more than 87% compared to other Euclidean projection modules in the experiments.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E105-A No.11 pp.1508-1512
Publication Date
2022/11/01
Publicized
2022/05/20
Online ISSN
1745-1337
DOI
10.1587/transfun.2021EAL2114
Type of Manuscript
LETTER
Category
Coding Theory

Authors

Yujin ZHENG
  Central China Normal University
Junwei ZHANG
  Central China Normal University
Yan LIN
  Wuhan Digital Engineering Institute
Qinglin ZHANG
  Central China Normal University
Qiaoqiao XIA
  Central China Normal University

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