Designing Protograph-Based LDPC Codes for Iterative Receivers on M-ary DCSK Systems

Qiwang Chen; Lin Wang; Yibo Lyu; Guanrong Chen

doi:10.1109/TCSII.2017.2741062

Designing Protograph-Based LDPC Codes for Iterative Receivers on M-ary DCSK Systems

Qiwang Chen
, Lin Wang^*
, Yibo Lyu
, Guanrong Chen

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

23 Citations (Scopus)

Abstract

In this brief, protograph-based low density parity check (P-LDPC) codes, which have simple structure and excellent error-correction capability, are designed for iterative receivers (IRs) on M-ary differential chaos shift keying (M-ary DCSK) systems. Due to the non-periodic and random characteristics of chaos carriers and their interaction with soft information, the conventional optimal P-LDPC codes over Bi-AWGN channels in the tandem mode may not perform well in M-ary DCSK systems with IR. With the help of a finite-length extrinsic information transfer (EXIT) algorithm, the convergence of IR is analyzed, by which a new design principle is proposed to construct new P-LDPC codes for the M-ary DCSK systems. Both EXIT analysis and simulated results demonstrate the superiority of the proposed P-LDPC codes.

Original language	English
Pages (from-to)	466-470
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	65
Issue number	4
Online published	17 Aug 2017
DOIs	https://doi.org/10.1109/TCSII.2017.2741062
Publication status	Published - Apr 2018

Research Keywords

EXIT analysis
Iterative receiver
M-ary DCSK system
protograph-based LDPC code

RGC Funding Information

RGC-funded

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10.1109/TCSII.2017.2741062

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title = "Designing Protograph-Based LDPC Codes for Iterative Receivers on M-ary DCSK Systems",

abstract = "In this brief, protograph-based low density parity check (P-LDPC) codes, which have simple structure and excellent error-correction capability, are designed for iterative receivers (IRs) on M-ary differential chaos shift keying (M-ary DCSK) systems. Due to the non-periodic and random characteristics of chaos carriers and their interaction with soft information, the conventional optimal P-LDPC codes over Bi-AWGN channels in the tandem mode may not perform well in M-ary DCSK systems with IR. With the help of a finite-length extrinsic information transfer (EXIT) algorithm, the convergence of IR is analyzed, by which a new design principle is proposed to construct new P-LDPC codes for the M-ary DCSK systems. Both EXIT analysis and simulated results demonstrate the superiority of the proposed P-LDPC codes.",

keywords = "EXIT analysis, Iterative receiver, M-ary DCSK system, protograph-based LDPC code",

author = "Qiwang Chen and Lin Wang and Yibo Lyu and Guanrong Chen",

year = "2018",

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doi = "10.1109/TCSII.2017.2741062",

language = "English",

volume = "65",

pages = "466--470",

journal = "IEEE Transactions on Circuits and Systems II: Express Briefs",

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TY - JOUR

T1 - Designing Protograph-Based LDPC Codes for Iterative Receivers on M-ary DCSK Systems

AU - Chen, Qiwang

AU - Wang, Lin

AU - Lyu, Yibo

AU - Chen, Guanrong

PY - 2018/4

Y1 - 2018/4

N2 - In this brief, protograph-based low density parity check (P-LDPC) codes, which have simple structure and excellent error-correction capability, are designed for iterative receivers (IRs) on M-ary differential chaos shift keying (M-ary DCSK) systems. Due to the non-periodic and random characteristics of chaos carriers and their interaction with soft information, the conventional optimal P-LDPC codes over Bi-AWGN channels in the tandem mode may not perform well in M-ary DCSK systems with IR. With the help of a finite-length extrinsic information transfer (EXIT) algorithm, the convergence of IR is analyzed, by which a new design principle is proposed to construct new P-LDPC codes for the M-ary DCSK systems. Both EXIT analysis and simulated results demonstrate the superiority of the proposed P-LDPC codes.

AB - In this brief, protograph-based low density parity check (P-LDPC) codes, which have simple structure and excellent error-correction capability, are designed for iterative receivers (IRs) on M-ary differential chaos shift keying (M-ary DCSK) systems. Due to the non-periodic and random characteristics of chaos carriers and their interaction with soft information, the conventional optimal P-LDPC codes over Bi-AWGN channels in the tandem mode may not perform well in M-ary DCSK systems with IR. With the help of a finite-length extrinsic information transfer (EXIT) algorithm, the convergence of IR is analyzed, by which a new design principle is proposed to construct new P-LDPC codes for the M-ary DCSK systems. Both EXIT analysis and simulated results demonstrate the superiority of the proposed P-LDPC codes.

KW - EXIT analysis

KW - Iterative receiver

KW - M-ary DCSK system

KW - protograph-based LDPC code

UR - https://www.scopus.com/pages/publications/85028500497

UR - https://www.scopus.com/pages/publications/85028500497#tab=impact

U2 - 10.1109/TCSII.2017.2741062

DO - 10.1109/TCSII.2017.2741062

M3 - RGC 21 - Publication in refereed journal

SN - 1549-7747

VL - 65

SP - 466

EP - 470

JO - IEEE Transactions on Circuits and Systems II: Express Briefs

JF - IEEE Transactions on Circuits and Systems II: Express Briefs

IS - 4

ER -

Designing Protograph-Based LDPC Codes for Iterative Receivers on M-ary DCSK Systems

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Research Keywords

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GRF: Pinning Controllability and Observability for Directed Networks of Non-identical Linear Node Systems with Multi-channel Connections

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Designing Protograph-Based LDPC Codes for Iterative Receivers on M-ary DCSK Systems

Abstract

Research Keywords

RGC Funding Information

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GRF: Pinning Controllability and Observability for Directed Networks of Non-identical Linear Node Systems with Multi-channel Connections

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