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[期刊论文]

Design and Optimization of Tail-Biting Spatially Coupled Protograph LDPC Codes under Shuffled Belief-Propagation Decoding

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author:

Yang, Zhaojie (Yang, Zhaojie.) [1] | Fang, Yi (Fang, Yi.) [2] | Cai, Guofa (Cai, Guofa.) [3] | Unfold

Indexed by:

EI

Abstract:

In this letter, we conduct a comprehensive investigation on tail-biting (TB) spatially coupled protograph (SC-P) low-density parity-check (LDPC) codes under shuffled belief-propagation (BP) decoding. We first propose a shuffled extrinsic information transfer (S-EXIT) algorithm tailored for the shuffled decoding. Exploiting the proposed algorithm, we accurately predict the convergence performance (i.e., decoding thresholds) for TB-SC-P codes under such a schedule and demonstrate that their convergence performance can be further improved. Based on the S-EXIT analysis, we develop an optimization method to generate a new type of TB-SC-P codes, called improved TB-SC double-protograph (I-TB-SC-DP) codes, which can inherit the superiorities of two mother protograph codes and possess more desirable decoding thresholds. Theoretical analyses and simulated results illustrate that the proposed I-TB-SC-DP codes exhibit better error performance than the existing counterparts. © 1997-2012 IEEE.

Keyword:

Decoding Forward error correction Turbo codes

Community:

  • [ 1 ] [Yang, Zhaojie]School of Information Engineering, Guangdong University of Technology, Guangzhou, China
  • [ 2 ] [Fang, Yi]School of Information Engineering, Guangdong University of Technology, Guangzhou, China
  • [ 3 ] [Cai, Guofa]School of Information Engineering, Guangdong University of Technology, Guangzhou, China
  • [ 4 ] [Zhang, Guohua]School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China
  • [ 5 ] [Chen, Pingping]Department of Electronic Information, Fuzhou University, Fuzhou, China

Reprint 's Address:

  • [fang, yi]school of information engineering, guangdong university of technology, guangzhou, china

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Related Article:

Source :

IEEE Communications Letters

ISSN: 1089-7798

Year: 2020

Issue: 7

Volume: 24

Page: 1378-1382

3 . 4 3 6

JCR@2020

3 . 7 0 0

JCR@2023

ESI HC Threshold:149

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 7

30 Days PV: 1

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