Approximating Decoding Thresholds of Punctured LDPC Code Ensembles on the AWGN Channel
(2015) IEEE International Symposium on Information Theory (ISIT), 2015 p.421-425- Abstract
- In this paper, we provide an efficient way to predict iterative belief propagation (BP) decoding thresholds of randomly punctured low-density parity-check (LDPC) code ensembles on the binary-input additive white Gaussian noise channel (AWGNC), given only the BP threshold of the mother code ensemble on the binary erasure channel (BEC) and the code design rate. We show that the predictions are accurate by comparing them with values calculated by discretized density evolution for a variety of puncturing fractions. We find that the strength and suitability of an LDPC code ensemble for random puncturing over the AWGNC with respect to iterative decoding threshold is completely determined by a single constant, and this behavior is demonstrated... (More)
- In this paper, we provide an efficient way to predict iterative belief propagation (BP) decoding thresholds of randomly punctured low-density parity-check (LDPC) code ensembles on the binary-input additive white Gaussian noise channel (AWGNC), given only the BP threshold of the mother code ensemble on the binary erasure channel (BEC) and the code design rate. We show that the predictions are accurate by comparing them with values calculated by discretized density evolution for a variety of puncturing fractions. We find that the strength and suitability of an LDPC code ensemble for random puncturing over the AWGNC with respect to iterative decoding threshold is completely determined by a single constant, and this behavior is demonstrated using both LDPC block code and spatially coupled LDPC code ensembles. Finally, we present simulation results that confirm the excellent decoding performance promised by the asymptotic results. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7442621
- author
- Mitchell, David G.M. ; Lentmaier, Michael LU ; Pusane, Ali E. and Costello Jr., Daniel J.
- organization
- publishing date
- 2015
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- LDPC codes, puncturing, rate-compatible, spatial coupling, density evolution
- host publication
- 2015 IEEE International Symposium on Information Theory (ISIT)
- pages
- 5 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE International Symposium on Information Theory (ISIT), 2015
- conference location
- Hong Kong, China
- conference dates
- 2015-06-14 - 2015-06-19
- external identifiers
-
- scopus:84969760772
- ISBN
- 978-1-4673-7704-1
- DOI
- 10.1109/ISIT.2015.7282489
- language
- English
- LU publication?
- yes
- id
- 47c4372c-a92c-4352-83a1-498e846bf1d2 (old id 7442621)
- date added to LUP
- 2016-04-04 11:22:33
- date last changed
- 2022-01-29 21:47:09
@inproceedings{47c4372c-a92c-4352-83a1-498e846bf1d2, abstract = {{In this paper, we provide an efficient way to predict iterative belief propagation (BP) decoding thresholds of randomly punctured low-density parity-check (LDPC) code ensembles on the binary-input additive white Gaussian noise channel (AWGNC), given only the BP threshold of the mother code ensemble on the binary erasure channel (BEC) and the code design rate. We show that the predictions are accurate by comparing them with values calculated by discretized density evolution for a variety of puncturing fractions. We find that the strength and suitability of an LDPC code ensemble for random puncturing over the AWGNC with respect to iterative decoding threshold is completely determined by a single constant, and this behavior is demonstrated using both LDPC block code and spatially coupled LDPC code ensembles. Finally, we present simulation results that confirm the excellent decoding performance promised by the asymptotic results.}}, author = {{Mitchell, David G.M. and Lentmaier, Michael and Pusane, Ali E. and Costello Jr., Daniel J.}}, booktitle = {{2015 IEEE International Symposium on Information Theory (ISIT)}}, isbn = {{978-1-4673-7704-1}}, keywords = {{LDPC codes; puncturing; rate-compatible; spatial coupling; density evolution}}, language = {{eng}}, pages = {{421--425}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Approximating Decoding Thresholds of Punctured LDPC Code Ensembles on the AWGN Channel}}, url = {{https://lup.lub.lu.se/search/files/5759124/7442623.pdf}}, doi = {{10.1109/ISIT.2015.7282489}}, year = {{2015}}, }