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Adaptive doping of spatially coupled LDPC codes

Zhu, Min ; Mitchell, David G.M. ; Lentmaier, Michael LU and Costello, Daniel J. (2021) 2020 IEEE Information Theory Workshop, ITW 2020
Abstract

In this paper, we study the problem of error propagation in sliding window decoding (SWD) of spatially coupled LDPC (SC-LDPC) codes. A general decoder model that accounts for error propagation is proposed and analyzed, and the decoded block error rate (BLER) is calculated using the model. In order to improve the BLER performance under decoder error propagation conditions, adaptive variable node (VN) doping is proposed, assuming a noiseless binary feedback channel is available. Example calculations using the proposed model, as well as numerical simulation results, are used to show that adaptive VN doping improves the BLER performance compared to the periodic VN doping and to the undoped case.

Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Code Doping, Sliding Window Decoding, Spatially Coupled Codes
host publication
2020 IEEE Information Theory Workshop, ITW 2020
article number
9457651
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
2020 IEEE Information Theory Workshop, ITW 2020
conference location
Virtual, Riva del Garda, Italy
conference dates
2021-04-11 - 2021-04-15
external identifiers
  • scopus:85113307425
ISBN
9781728159621
978-1-7281-5963-8
DOI
10.1109/ITW46852.2021.9457651
language
English
LU publication?
yes
id
81c78c3d-c2ea-486d-b853-fc895e634530
date added to LUP
2022-02-22 16:54:35
date last changed
2024-07-25 15:30:45
@inproceedings{81c78c3d-c2ea-486d-b853-fc895e634530,
  abstract     = {{<p>In this paper, we study the problem of error propagation in sliding window decoding (SWD) of spatially coupled LDPC (SC-LDPC) codes. A general decoder model that accounts for error propagation is proposed and analyzed, and the decoded block error rate (BLER) is calculated using the model. In order to improve the BLER performance under decoder error propagation conditions, adaptive variable node (VN) doping is proposed, assuming a noiseless binary feedback channel is available. Example calculations using the proposed model, as well as numerical simulation results, are used to show that adaptive VN doping improves the BLER performance compared to the periodic VN doping and to the undoped case.</p>}},
  author       = {{Zhu, Min and Mitchell, David G.M. and Lentmaier, Michael and Costello, Daniel J.}},
  booktitle    = {{2020 IEEE Information Theory Workshop, ITW 2020}},
  isbn         = {{9781728159621}},
  keywords     = {{Code Doping; Sliding Window Decoding; Spatially Coupled Codes}},
  language     = {{eng}},
  month        = {{04}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{Adaptive doping of spatially coupled LDPC codes}},
  url          = {{http://dx.doi.org/10.1109/ITW46852.2021.9457651}},
  doi          = {{10.1109/ITW46852.2021.9457651}},
  year         = {{2021}},
}