FPGA-based rate-adaptive LDPC-coded modulation for the next generation of optical communication systems

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In this paper, we propose a rate-adaptive FEC scheme based on LDPC codes together with its software reconfigurable unified FPGA architecture. By FPGA emulation, we demonstrate that the proposed class of rate-adaptive LDPC codes based on shortening with an overhead from 25% to 42.9% provides a coding gain ranging from 13.08 dB to 14.28 dB at a post-FEC BER of 10-15 for BPSK transmission. In addition, the proposed rate-adaptive LDPC coding combined with higher-order modulations have been demonstrated including QPSK, 8-QAM, 16-QAM, 32-QAM, and 64-QAM, which covers a wide range of signal-to-noise ratios. Furthermore, we apply the unequal error protection by employing different LDPC codes on different bits in 16-QAM and 64-QAM, which results in additional 0.5dB gain compared to conventional LDPC coded modulation with the same code rate of corresponding LDPC code.

Original languageEnglish (US)
Pages (from-to)21159-21166
Number of pages8
JournalOptics Express
Volume24
Issue number18
DOIs
StatePublished - Sep 5 2016

Fingerprint

quadrature amplitude modulation
optical communication
telecommunication
modulation
coding
binary phase shift keying
quadrature phase shift keying
signal to noise ratios
computer programs

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

FPGA-based rate-adaptive LDPC-coded modulation for the next generation of optical communication systems. / Zou, Ding; Djordjevic, Ivan B.

In: Optics Express, Vol. 24, No. 18, 05.09.2016, p. 21159-21166.

Research output: Contribution to journalArticle

@article{f56352bf113940aca2a8e3bccaf3e4d2,
title = "FPGA-based rate-adaptive LDPC-coded modulation for the next generation of optical communication systems",
abstract = "In this paper, we propose a rate-adaptive FEC scheme based on LDPC codes together with its software reconfigurable unified FPGA architecture. By FPGA emulation, we demonstrate that the proposed class of rate-adaptive LDPC codes based on shortening with an overhead from 25{\%} to 42.9{\%} provides a coding gain ranging from 13.08 dB to 14.28 dB at a post-FEC BER of 10-15 for BPSK transmission. In addition, the proposed rate-adaptive LDPC coding combined with higher-order modulations have been demonstrated including QPSK, 8-QAM, 16-QAM, 32-QAM, and 64-QAM, which covers a wide range of signal-to-noise ratios. Furthermore, we apply the unequal error protection by employing different LDPC codes on different bits in 16-QAM and 64-QAM, which results in additional 0.5dB gain compared to conventional LDPC coded modulation with the same code rate of corresponding LDPC code.",
author = "Ding Zou and Djordjevic, {Ivan B}",
year = "2016",
month = "9",
day = "5",
doi = "10.1364/OE.24.021159",
language = "English (US)",
volume = "24",
pages = "21159--21166",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "18",

}

TY - JOUR

T1 - FPGA-based rate-adaptive LDPC-coded modulation for the next generation of optical communication systems

AU - Zou, Ding

AU - Djordjevic, Ivan B

PY - 2016/9/5

Y1 - 2016/9/5

N2 - In this paper, we propose a rate-adaptive FEC scheme based on LDPC codes together with its software reconfigurable unified FPGA architecture. By FPGA emulation, we demonstrate that the proposed class of rate-adaptive LDPC codes based on shortening with an overhead from 25% to 42.9% provides a coding gain ranging from 13.08 dB to 14.28 dB at a post-FEC BER of 10-15 for BPSK transmission. In addition, the proposed rate-adaptive LDPC coding combined with higher-order modulations have been demonstrated including QPSK, 8-QAM, 16-QAM, 32-QAM, and 64-QAM, which covers a wide range of signal-to-noise ratios. Furthermore, we apply the unequal error protection by employing different LDPC codes on different bits in 16-QAM and 64-QAM, which results in additional 0.5dB gain compared to conventional LDPC coded modulation with the same code rate of corresponding LDPC code.

AB - In this paper, we propose a rate-adaptive FEC scheme based on LDPC codes together with its software reconfigurable unified FPGA architecture. By FPGA emulation, we demonstrate that the proposed class of rate-adaptive LDPC codes based on shortening with an overhead from 25% to 42.9% provides a coding gain ranging from 13.08 dB to 14.28 dB at a post-FEC BER of 10-15 for BPSK transmission. In addition, the proposed rate-adaptive LDPC coding combined with higher-order modulations have been demonstrated including QPSK, 8-QAM, 16-QAM, 32-QAM, and 64-QAM, which covers a wide range of signal-to-noise ratios. Furthermore, we apply the unequal error protection by employing different LDPC codes on different bits in 16-QAM and 64-QAM, which results in additional 0.5dB gain compared to conventional LDPC coded modulation with the same code rate of corresponding LDPC code.

UR - http://www.scopus.com/inward/record.url?scp=84989204648&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84989204648&partnerID=8YFLogxK

U2 - 10.1364/OE.24.021159

DO - 10.1364/OE.24.021159

M3 - Article

VL - 24

SP - 21159

EP - 21166

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 18

ER -