Bit loading-based irregular LDPC coded-modulation for high-speed optical communications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In state-of-the-art fibre-optics communication systems, the forward error correction (FEC) and high-order constellation formats are employed. It is important to approach the Shannon limit by using turbo product codes (TPC) and low-density parity-check (LDPC) codes with soft-decision decoding (SDD) algorithms. In this paper, we first study the rate-adaptive irregular LDPC coding technique in wide range of code rates enabling the flexible adjustment according to channel conditions and the simulation results show an improved SNR gain of 0.15 ∼ 0.44 dB compared with regular LDPC codes under BPSK transmission. Then we propose a bit-loading rule for irregular LDPC codes combined with 16QAM and demonstrate additional 0.3 dB SNR improvements in low code rate regime, making it a viable solution for next generation high-speed optical communication systems.

Original languageEnglish (US)
Title of host publication2016 18th International Conference on Transparent Optical Networks, ICTON 2016
PublisherIEEE Computer Society
Volume2016-August
ISBN (Electronic)9781509014675
DOIs
StatePublished - Aug 23 2016
Event18th International Conference on Transparent Optical Networks, ICTON 2016 - Trento, Italy
Duration: Jul 10 2016Jul 14 2016

Other

Other18th International Conference on Transparent Optical Networks, ICTON 2016
CountryItaly
CityTrento
Period7/10/167/14/16

Fingerprint

Optical communication
Communication systems
Modulation
Forward error correction
Fiber optics
Decoding

Keywords

  • fibre-optics and optical communications
  • low-density parity-check (LDPC)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Zou, D., & Djordjevic, I. B. (2016). Bit loading-based irregular LDPC coded-modulation for high-speed optical communications. In 2016 18th International Conference on Transparent Optical Networks, ICTON 2016 (Vol. 2016-August). [7550345] IEEE Computer Society. https://doi.org/10.1109/ICTON.2016.7550345

Bit loading-based irregular LDPC coded-modulation for high-speed optical communications. / Zou, Ding; Djordjevic, Ivan B.

2016 18th International Conference on Transparent Optical Networks, ICTON 2016. Vol. 2016-August IEEE Computer Society, 2016. 7550345.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zou, D & Djordjevic, IB 2016, Bit loading-based irregular LDPC coded-modulation for high-speed optical communications. in 2016 18th International Conference on Transparent Optical Networks, ICTON 2016. vol. 2016-August, 7550345, IEEE Computer Society, 18th International Conference on Transparent Optical Networks, ICTON 2016, Trento, Italy, 7/10/16. https://doi.org/10.1109/ICTON.2016.7550345
Zou D, Djordjevic IB. Bit loading-based irregular LDPC coded-modulation for high-speed optical communications. In 2016 18th International Conference on Transparent Optical Networks, ICTON 2016. Vol. 2016-August. IEEE Computer Society. 2016. 7550345 https://doi.org/10.1109/ICTON.2016.7550345
Zou, Ding ; Djordjevic, Ivan B. / Bit loading-based irregular LDPC coded-modulation for high-speed optical communications. 2016 18th International Conference on Transparent Optical Networks, ICTON 2016. Vol. 2016-August IEEE Computer Society, 2016.
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