Syndrome-Based HARQ Schemes for Anytime Codes

Xiaoxi Yu; Md Noor-A-Rahim; Li Deng; Zhaojie Yang; Yong Liang Guan

doi:10.1109/ICCCWorkshops57813.2023.10233766

Syndrome-Based HARQ Schemes for Anytime Codes

Xiaoxi Yu^*, Md Noor-A-Rahim, Li Deng, Zhaojie Yang, Yong Liang Guan

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Anytime code is a new class of error-correcting code with arbitrarily long coding memory (by design) so that its decoding performance can be improved by an expanding decoding window size (i.e., decoding delay). The anytime code has been shown to help stabilize an unstable system over noisy channels. Among practical anytime codes, spatially coupled repeat-accumulate (SC-RA) anytime codes have been proven to provide outstanding asymptotic performance while offering a simple encoding process. However, in the finite block-length regime, high erasure/error floors are observed for the SC-RA anytime codes even as the decoding window size (decoding delay) is enlarged. In this paper, to alleviate the high erasure/error floors problem, novel syndrome-based hybrid automatic repeat request (HARQ) schemes are designed for the SC-RA anytime codes over the binary erasure channel (BEC) and the binary input additive white Gaussian noise (BI-AWGN) channel, respectively. Simulation results show that the proposed syndrome-based HARQ schemes offer better decoding performance and spectral efficiency than the prior-art anytime code HARQ schemes.

Original language	English
Title of host publication	2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350345407
DOIs	https://doi.org/10.1109/ICCCWorkshops57813.2023.10233766
Publication status	Published - 2023
Externally published	Yes
Event	2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023 - Dalian, China Duration: Aug 10 2023 → Aug 12 2023

Publication series

Name	2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023

Conference

Conference	2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023
Country/Territory	China
City	Dalian
Period	8/10/23 → 8/12/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

ASJC Scopus Subject Areas

Computer Networks and Communications
Signal Processing

Keywords

Anytime codes
AWGN channel
BEC
HARQ
spatially coupled codes

Access to Document

10.1109/ICCCWorkshops57813.2023.10233766

Cite this

Yu, X., Noor-A-Rahim, M., Deng, L., Yang, Z., & Guan, Y. L. (2023). Syndrome-Based HARQ Schemes for Anytime Codes. In 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023 (2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCCWorkshops57813.2023.10233766

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title = "Syndrome-Based HARQ Schemes for Anytime Codes",

abstract = "Anytime code is a new class of error-correcting code with arbitrarily long coding memory (by design) so that its decoding performance can be improved by an expanding decoding window size (i.e., decoding delay). The anytime code has been shown to help stabilize an unstable system over noisy channels. Among practical anytime codes, spatially coupled repeat-accumulate (SC-RA) anytime codes have been proven to provide outstanding asymptotic performance while offering a simple encoding process. However, in the finite block-length regime, high erasure/error floors are observed for the SC-RA anytime codes even as the decoding window size (decoding delay) is enlarged. In this paper, to alleviate the high erasure/error floors problem, novel syndrome-based hybrid automatic repeat request (HARQ) schemes are designed for the SC-RA anytime codes over the binary erasure channel (BEC) and the binary input additive white Gaussian noise (BI-AWGN) channel, respectively. Simulation results show that the proposed syndrome-based HARQ schemes offer better decoding performance and spectral efficiency than the prior-art anytime code HARQ schemes.",

keywords = "Anytime codes, AWGN channel, BEC, HARQ, spatially coupled codes",

author = "Xiaoxi Yu and Md Noor-A-Rahim and Li Deng and Zhaojie Yang and Guan, {Yong Liang}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023 ; Conference date: 10-08-2023 Through 12-08-2023",

year = "2023",

doi = "10.1109/ICCCWorkshops57813.2023.10233766",

language = "English",

series = "2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023",

address = "United States",

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Yu, X, Noor-A-Rahim, M, Deng, L, Yang, Z & Guan, YL 2023, Syndrome-Based HARQ Schemes for Anytime Codes. in 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023. 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023, Dalian, China, 8/10/23. https://doi.org/10.1109/ICCCWorkshops57813.2023.10233766

Syndrome-Based HARQ Schemes for Anytime Codes. / Yu, Xiaoxi; Noor-A-Rahim, Md; Deng, Li et al.
2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Syndrome-Based HARQ Schemes for Anytime Codes

AU - Yu, Xiaoxi

AU - Noor-A-Rahim, Md

AU - Deng, Li

AU - Yang, Zhaojie

AU - Guan, Yong Liang

PY - 2023

Y1 - 2023

N2 - Anytime code is a new class of error-correcting code with arbitrarily long coding memory (by design) so that its decoding performance can be improved by an expanding decoding window size (i.e., decoding delay). The anytime code has been shown to help stabilize an unstable system over noisy channels. Among practical anytime codes, spatially coupled repeat-accumulate (SC-RA) anytime codes have been proven to provide outstanding asymptotic performance while offering a simple encoding process. However, in the finite block-length regime, high erasure/error floors are observed for the SC-RA anytime codes even as the decoding window size (decoding delay) is enlarged. In this paper, to alleviate the high erasure/error floors problem, novel syndrome-based hybrid automatic repeat request (HARQ) schemes are designed for the SC-RA anytime codes over the binary erasure channel (BEC) and the binary input additive white Gaussian noise (BI-AWGN) channel, respectively. Simulation results show that the proposed syndrome-based HARQ schemes offer better decoding performance and spectral efficiency than the prior-art anytime code HARQ schemes.

AB - Anytime code is a new class of error-correcting code with arbitrarily long coding memory (by design) so that its decoding performance can be improved by an expanding decoding window size (i.e., decoding delay). The anytime code has been shown to help stabilize an unstable system over noisy channels. Among practical anytime codes, spatially coupled repeat-accumulate (SC-RA) anytime codes have been proven to provide outstanding asymptotic performance while offering a simple encoding process. However, in the finite block-length regime, high erasure/error floors are observed for the SC-RA anytime codes even as the decoding window size (decoding delay) is enlarged. In this paper, to alleviate the high erasure/error floors problem, novel syndrome-based hybrid automatic repeat request (HARQ) schemes are designed for the SC-RA anytime codes over the binary erasure channel (BEC) and the binary input additive white Gaussian noise (BI-AWGN) channel, respectively. Simulation results show that the proposed syndrome-based HARQ schemes offer better decoding performance and spectral efficiency than the prior-art anytime code HARQ schemes.

KW - Anytime codes

KW - AWGN channel

KW - BEC

KW - HARQ

KW - spatially coupled codes

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M3 - Conference contribution

AN - SCOPUS:85172422662

T3 - 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023

BT - 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023

Y2 - 10 August 2023 through 12 August 2023

ER -

Yu X, Noor-A-Rahim M, Deng L, Yang Z, Guan YL. Syndrome-Based HARQ Schemes for Anytime Codes. In 2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023. Institute of Electrical and Electronics Engineers Inc. 2023. (2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023). doi: 10.1109/ICCCWorkshops57813.2023.10233766

Syndrome-Based HARQ Schemes for Anytime Codes

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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