A note onweight distributions of spatially "mt. Fuji" coupled LDPC codes

Yuta Nakahara, Toshiyasu Matsushima

研究成果: Article

抄録

Spatially "Mt. Fuji" coupled (SFC) low density parity check (LDPC) codes are constructed as a chain of block LDPC codes. A difference between the SFC-LDPC codes and the original spatially coupled (SC) LDPC codes is code lengths of the underlying block LDPC codes. The code length of the block LDPC code at the middle of the chain is larger than that at the end of the chain. It is experimentally confirmed that the bit error probability in the error floor region of the SFC-LDPC code is lower than that of the SC-LDPC code whose code length and design rate are the same as those of the SFC-LDPC code. In this letter, we calculate the weight distribution of the SFC-LDPC code and try to explain causes of the low bit error rates of the SFC-LDPC code.

元の言語English
ページ(範囲)2194-2198
ページ数5
ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E101A
発行部数12
DOI
出版物ステータスPublished - 2018 12 1

Fingerprint

Low-density Parity-check (LDPC) Codes
Bit error rate
Block Codes
Error probability
Weight Distribution
Error Probability
Error Rate

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics

これを引用

@article{32d3896f9fd044d1a812635ec5e43324,
title = "A note onweight distributions of spatially {"}mt. Fuji{"} coupled LDPC codes",
abstract = "Spatially {"}Mt. Fuji{"} coupled (SFC) low density parity check (LDPC) codes are constructed as a chain of block LDPC codes. A difference between the SFC-LDPC codes and the original spatially coupled (SC) LDPC codes is code lengths of the underlying block LDPC codes. The code length of the block LDPC code at the middle of the chain is larger than that at the end of the chain. It is experimentally confirmed that the bit error probability in the error floor region of the SFC-LDPC code is lower than that of the SC-LDPC code whose code length and design rate are the same as those of the SFC-LDPC code. In this letter, we calculate the weight distribution of the SFC-LDPC code and try to explain causes of the low bit error rates of the SFC-LDPC code.",
keywords = "Error floors, Spatially coupled LDPC codes, Weight distributions",
author = "Yuta Nakahara and Toshiyasu Matsushima",
year = "2018",
month = "12",
day = "1",
doi = "10.1587/transfun.E101.A.2194",
language = "English",
volume = "E101A",
pages = "2194--2198",
journal = "IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences",
issn = "0916-8508",
publisher = "Maruzen Co., Ltd/Maruzen Kabushikikaisha",
number = "12",

}

TY - JOUR

T1 - A note onweight distributions of spatially "mt. Fuji" coupled LDPC codes

AU - Nakahara, Yuta

AU - Matsushima, Toshiyasu

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Spatially "Mt. Fuji" coupled (SFC) low density parity check (LDPC) codes are constructed as a chain of block LDPC codes. A difference between the SFC-LDPC codes and the original spatially coupled (SC) LDPC codes is code lengths of the underlying block LDPC codes. The code length of the block LDPC code at the middle of the chain is larger than that at the end of the chain. It is experimentally confirmed that the bit error probability in the error floor region of the SFC-LDPC code is lower than that of the SC-LDPC code whose code length and design rate are the same as those of the SFC-LDPC code. In this letter, we calculate the weight distribution of the SFC-LDPC code and try to explain causes of the low bit error rates of the SFC-LDPC code.

AB - Spatially "Mt. Fuji" coupled (SFC) low density parity check (LDPC) codes are constructed as a chain of block LDPC codes. A difference between the SFC-LDPC codes and the original spatially coupled (SC) LDPC codes is code lengths of the underlying block LDPC codes. The code length of the block LDPC code at the middle of the chain is larger than that at the end of the chain. It is experimentally confirmed that the bit error probability in the error floor region of the SFC-LDPC code is lower than that of the SC-LDPC code whose code length and design rate are the same as those of the SFC-LDPC code. In this letter, we calculate the weight distribution of the SFC-LDPC code and try to explain causes of the low bit error rates of the SFC-LDPC code.

KW - Error floors

KW - Spatially coupled LDPC codes

KW - Weight distributions

UR - http://www.scopus.com/inward/record.url?scp=85057448785&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057448785&partnerID=8YFLogxK

U2 - 10.1587/transfun.E101.A.2194

DO - 10.1587/transfun.E101.A.2194

M3 - Article

AN - SCOPUS:85057448785

VL - E101A

SP - 2194

EP - 2198

JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

SN - 0916-8508

IS - 12

ER -