Improving Short-Length LDPC Codes with a CRC and Iterative Ordered Statistic Decoding

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

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 reliability based OSD, which is demonstrated to
perform well with a small OSD order.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kommunikationssystem

Nyckelord

Originalspråkengelska
Titel på värdpublikation2019 53rd Annual Conference on Information Sciences and Systems (CISS)
FörlagInstitute of Electrical and Electronics Engineers Inc.
ISBN (elektroniskt)978-1-7281-1151-3
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa
Evenemang53rd Conference on Information Sciences and Systems - Johns Hopkins University, Baltimore, USA
Varaktighet: 2019 mar 202019 mar 22
https://ciss.jhu.edu/

Konferens

Konferens53rd Conference on Information Sciences and Systems
LandUSA
OrtBaltimore
Period2019/03/202019/03/22
Internetadress

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