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Hardware-Efficient Node Processing Unit Architectures for Flexible LDPC Decoder Implementations

delete2018-12-01
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OA
AI
P
Peter Hailes
L
Lei Xu
R
Robert G. Maunder
B
Bashir M. Al‐Hashimi
L
Lajos Hanzo *
DOI:10.1109/TCSII.2018.2807362delete
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Abstract

Abstract

En 中文
In low-density parity check (LDPC) decoder implementations, the architecture of the node processing units (NPUs) has a significant impact both on the hardware resource requirements and on the processing throughput. Additionally, some NPU architectures impose limitations on the decoder's support for intra- or interstandard LDPC code flexibility at run-time. In this brief, we present a generalised algorithmic method of constructing NPUs that support run-time flexibility while maintaining a low hardware resource requirement and high maximum operating frequency. FPGA-based synthesis results demonstrate that the proposed architecture offers a significantly improved hardware efficiency, when compared to two commonly employed alternatives.
Keywords:
Digital communication
error correction codes
low-density parity check (LDPC) codes
stochastic computing
iterative decoding
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Journal

I
IEEE Transactions on Circuits and Systems and Express Briefs
IF:
4.9
Papers:
8.8K
Citations:
2.5W

Organization

U
university of southampton
Scholars:
3.3W
Papers: 3.2W
Citations: 52