Improving Short-Length LDPC Codes with a CRC and Iterative Ordered Statistic Decoding
(2019) 53rd Conference on Information Sciences and Systems- Abstract
- We present a CRC-aided decoding
scheme of LDPC codes that can outperform the underlying LDPC code under
ordered statistic decoding (OSD). In this scheme, the CRC is used
jointly with the LDPC code to construct a candidate list, instead
of conventionally being regarded as a detection code to prune
the list generated by the LDPC code alone. As an example we
consider a (128,64) 5G LDPC code with BP decoding, which we can
outperform by 2dB using a (128,72) LDPC code in combination
with a 8-bit CRC under OSD order of 3. The CRC-aided decoding scheme also achieves a better performance than the conventional one where CRC is used to prune the list. A manageable complexity can be achieved
with iterative... (More) - We present a CRC-aided decoding
scheme of LDPC codes that can outperform the underlying LDPC code under
ordered statistic decoding (OSD). In this scheme, the CRC is used
jointly with the LDPC code to construct a candidate list, instead
of conventionally being regarded as a detection code to prune
the list generated by the LDPC code alone. As an example we
consider a (128,64) 5G LDPC code with BP decoding, which we can
outperform by 2dB using a (128,72) LDPC code in combination
with a 8-bit CRC under OSD order of 3. The CRC-aided decoding scheme also achieves a better performance than the conventional one where CRC is used to prune the list. A manageable complexity can be achieved
with iterative reliability based OSD, which is demonstrated to
perform well with a small OSD order. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/a6b1d8ff-4fc3-414c-8532-ffa43b49864f
- author
- Zhou, Wei LU and Lentmaier, Michael LU
- organization
- publishing date
- 2019
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- LDPC codes, CRC, Ordered Statistic Decoding, ML decoding
- host publication
- 2019 53rd Annual Conference on Information Sciences and Systems (CISS)
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- 53rd Conference on Information Sciences and Systems
- conference location
- Baltimore, United States
- conference dates
- 2019-03-20 - 2019-03-22
- external identifiers
-
- scopus:85065198418
- ISBN
- 978-1-7281-1151-3
- DOI
- 10.1109/CISS.2019.8693053
- language
- English
- LU publication?
- yes
- id
- a6b1d8ff-4fc3-414c-8532-ffa43b49864f
- date added to LUP
- 2019-03-07 18:04:30
- date last changed
- 2022-05-03 21:04:00
@inproceedings{a6b1d8ff-4fc3-414c-8532-ffa43b49864f, abstract = {{We present a CRC-aided decoding<br/>scheme of LDPC codes that can outperform the underlying LDPC code under<br/>ordered statistic decoding (OSD). In this scheme, the CRC is used<br/>jointly with the LDPC code to construct a candidate list, instead<br/>of conventionally being regarded as a detection code to prune<br/>the list generated by the LDPC code alone. As an example we<br/>consider a (128,64) 5G LDPC code with BP decoding, which we can<br/>outperform by 2dB using a (128,72) LDPC code in combination<br/>with a 8-bit CRC under OSD order of 3. The CRC-aided decoding scheme also achieves a better performance than the conventional one where CRC is used to prune the list. A manageable complexity can be achieved<br/>with iterative reliability based OSD, which is demonstrated to<br/>perform well with a small OSD order.}}, author = {{Zhou, Wei and Lentmaier, Michael}}, booktitle = {{2019 53rd Annual Conference on Information Sciences and Systems (CISS)}}, isbn = {{978-1-7281-1151-3}}, keywords = {{LDPC codes; CRC; Ordered Statistic Decoding; ML decoding}}, language = {{eng}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Improving Short-Length LDPC Codes with a CRC and Iterative Ordered Statistic Decoding}}, url = {{https://lup.lub.lu.se/search/files/64662934/ciss_2019_final_upload.pdf}}, doi = {{10.1109/CISS.2019.8693053}}, year = {{2019}}, }