An Even/Odd Error Detection Based Low-Complexity Chase Decoding for Low-Latency RS Decoder Design

Jinho Jeong; Dongyeob Shin; Wongyu Shin; Jongsun Park

doi:10.1109/LCOMM.2021.3054753

An Even/Odd Error Detection Based Low-Complexity Chase Decoding for Low-Latency RS Decoder Design

Jinho Jeong, Dongyeob Shin, Wongyu Shin, Jongsun Park

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

This letter presents a modified low-complexity chase (LCC) algorithm, where a fewer number of vectors can be tested with minor error correction performance degradation. The proposed LCC decoding pre-determines whether the number of errors in the received codeword is even or odd, and it processes only necessary test vectors. As a result, the number of test vectors can be reduced by half compared to the conventional LCC decoding. The Reed-Solomon (255,239) decoder with the proposed LCC algorithm has been implemented using 65nm CMOS process. The hardware implementation results show that the proposed decoder shows 48.5% reduced latency with 0.06 dB of coding gain decrease at $\mathbf {10^{-6}}$ codeword error rate compared to the state-of-the-art LCC decoder.

Original language	English
Article number	9336031
Pages (from-to)	1505-1509
Number of pages	5
Journal	IEEE Communications Letters
Volume	25
Issue number	5
DOIs	https://doi.org/10.1109/LCOMM.2021.3054753
Publication status	Published - 2021 May

Bibliographical note

Publisher Copyright:
© 1997-2012 IEEE.

Keywords

Reed-Solomon (RS) codes
algebraic soft-decision decoding (ASD)
latency
low-complexity chase (LCC)

ASJC Scopus subject areas

Modelling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/LCOMM.2021.3054753

Cite this

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abstract = "This letter presents a modified low-complexity chase (LCC) algorithm, where a fewer number of vectors can be tested with minor error correction performance degradation. The proposed LCC decoding pre-determines whether the number of errors in the received codeword is even or odd, and it processes only necessary test vectors. As a result, the number of test vectors can be reduced by half compared to the conventional LCC decoding. The Reed-Solomon (255,239) decoder with the proposed LCC algorithm has been implemented using 65nm CMOS process. The hardware implementation results show that the proposed decoder shows 48.5% reduced latency with 0.06 dB of coding gain decrease at $\mathbf {10^{-6}}$ codeword error rate compared to the state-of-the-art LCC decoder.",

keywords = "Reed-Solomon (RS) codes, algebraic soft-decision decoding (ASD), latency, low-complexity chase (LCC)",

author = "Jinho Jeong and Dongyeob Shin and Wongyu Shin and Jongsun Park",

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AU - Shin, Wongyu

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AB - This letter presents a modified low-complexity chase (LCC) algorithm, where a fewer number of vectors can be tested with minor error correction performance degradation. The proposed LCC decoding pre-determines whether the number of errors in the received codeword is even or odd, and it processes only necessary test vectors. As a result, the number of test vectors can be reduced by half compared to the conventional LCC decoding. The Reed-Solomon (255,239) decoder with the proposed LCC algorithm has been implemented using 65nm CMOS process. The hardware implementation results show that the proposed decoder shows 48.5% reduced latency with 0.06 dB of coding gain decrease at $\mathbf {10^{-6}}$ codeword error rate compared to the state-of-the-art LCC decoder.

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An Even/Odd Error Detection Based Low-Complexity Chase Decoding for Low-Latency RS Decoder Design

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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