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Girth Properties of Time-Varying SC-LDPC Convolutional Codes

Battaglioni, Massimo LU ; Baldi, Marco ; Chiaraluce, Franco and Lentmaier, Michael LU (2019) 2019 IEEE International Symposium on Information Theory, ISIT 2019 2019-July. p.2599-2603
Abstract

Time-varying spatially-coupled low-density parity-check convolutional codes (SC-LDPC-CCs) exhibit excellent features, but their representation requires a very large number of parameters. On the other hand, the description of time-invariant SC-LDPC-CCs is very convenient and their error rate performance, though usually worse, is often satisfactory. In this paper we investigate the girth properties of these codes, showing that the time-invariant ones have some weaknesses, which can be compensated by introducing a small periodicity in the code. By considering periodically time-varying codes, we achieve considerable improvements in the girth properties using few more degrees of freedom with respect to the time-invariant case.

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author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
2019 IEEE International Symposium on Information Theory, ISIT 2019 - Proceedings
volume
2019-July
article number
8849323
pages
5 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
2019 IEEE International Symposium on Information Theory, ISIT 2019
conference location
Paris, France
conference dates
2019-07-07 - 2019-07-12
external identifiers
  • scopus:85073169111
ISBN
9781538692912
DOI
10.1109/ISIT.2019.8849323
language
English
LU publication?
yes
id
e6d098a8-c902-4196-ae1a-2b1e297875d6
date added to LUP
2019-10-23 13:51:55
date last changed
2022-05-11 22:17:57
@inproceedings{e6d098a8-c902-4196-ae1a-2b1e297875d6,
  abstract     = {{<p>Time-varying spatially-coupled low-density parity-check convolutional codes (SC-LDPC-CCs) exhibit excellent features, but their representation requires a very large number of parameters. On the other hand, the description of time-invariant SC-LDPC-CCs is very convenient and their error rate performance, though usually worse, is often satisfactory. In this paper we investigate the girth properties of these codes, showing that the time-invariant ones have some weaknesses, which can be compensated by introducing a small periodicity in the code. By considering periodically time-varying codes, we achieve considerable improvements in the girth properties using few more degrees of freedom with respect to the time-invariant case.</p>}},
  author       = {{Battaglioni, Massimo and Baldi, Marco and Chiaraluce, Franco and Lentmaier, Michael}},
  booktitle    = {{2019 IEEE International Symposium on Information Theory, ISIT 2019 - Proceedings}},
  isbn         = {{9781538692912}},
  language     = {{eng}},
  pages        = {{2599--2603}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{Girth Properties of Time-Varying SC-LDPC Convolutional Codes}},
  url          = {{http://dx.doi.org/10.1109/ISIT.2019.8849323}},
  doi          = {{10.1109/ISIT.2019.8849323}},
  volume       = {{2019-July}},
  year         = {{2019}},
}