Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM

Research output: Contribution to journalJournal articleResearchpeer-review

167 Downloads (Pure)

Abstract

The fundamental penalty of sub-carrier modulation (SCM) with independent sub-carrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulation format size and can potentially exceed the gains of the nonlinear tolerance of SCM. A low complexity algorithm is proposed for joint sub-carrier phase noise processing, which is scalable in the number of sub-carriers and recovers almost entirely the fundamental SNR penalty with respect to single carrier systems operating at the same net data-rate. The proposed algorithm enables high-order modulation formats with high count of sub-carriers to be safely employed for nonlinearity mitigation in optical communication systems
Original languageEnglish
JournalIEEE Photonics Journal
Volume9
Issue number5
Number of pages12
ISSN1943-0655
DOIs
Publication statusPublished - 2017

Keywords

  • Multi-carrier
  • Joint processing
  • Phase noise
  • Subcarrier multiplexing
  • WDM

Cite this

@article{cc44ed446ddc49068fd5e9bfbd37f0b7,
title = "Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM",
abstract = "The fundamental penalty of sub-carrier modulation (SCM) with independent sub-carrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulation format size and can potentially exceed the gains of the nonlinear tolerance of SCM. A low complexity algorithm is proposed for joint sub-carrier phase noise processing, which is scalable in the number of sub-carriers and recovers almost entirely the fundamental SNR penalty with respect to single carrier systems operating at the same net data-rate. The proposed algorithm enables high-order modulation formats with high count of sub-carriers to be safely employed for nonlinearity mitigation in optical communication systems",
keywords = "Multi-carrier, Joint processing, Phase noise, Subcarrier multiplexing, WDM",
author = "Yankov, {Metodi Plamenov} and L. Barletta and Darko Zibar",
year = "2017",
doi = "10.1109/JPHOT.2017.2740983",
language = "English",
volume = "9",
journal = "I E E E Photonics Journal",
issn = "1943-0655",
publisher = "IEEE",
number = "5",

}

Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM. / Yankov, Metodi Plamenov; Barletta, L.; Zibar, Darko.

In: IEEE Photonics Journal, Vol. 9, No. 5, 2017.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Phase Noise Compensation for Nonlinearity-Tolerant Digital Subcarrier Systems With High-Order QAM

AU - Yankov, Metodi Plamenov

AU - Barletta, L.

AU - Zibar, Darko

PY - 2017

Y1 - 2017

N2 - The fundamental penalty of sub-carrier modulation (SCM) with independent sub-carrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulation format size and can potentially exceed the gains of the nonlinear tolerance of SCM. A low complexity algorithm is proposed for joint sub-carrier phase noise processing, which is scalable in the number of sub-carriers and recovers almost entirely the fundamental SNR penalty with respect to single carrier systems operating at the same net data-rate. The proposed algorithm enables high-order modulation formats with high count of sub-carriers to be safely employed for nonlinearity mitigation in optical communication systems

AB - The fundamental penalty of sub-carrier modulation (SCM) with independent sub-carrier phase noise processing is estimated. It is shown that the fundamental signal-to-noise ratio (SNR) penalty related to poorer phase noise tolerance of decreased baudrate subcarriers increases significantly with modulation format size and can potentially exceed the gains of the nonlinear tolerance of SCM. A low complexity algorithm is proposed for joint sub-carrier phase noise processing, which is scalable in the number of sub-carriers and recovers almost entirely the fundamental SNR penalty with respect to single carrier systems operating at the same net data-rate. The proposed algorithm enables high-order modulation formats with high count of sub-carriers to be safely employed for nonlinearity mitigation in optical communication systems

KW - Multi-carrier

KW - Joint processing

KW - Phase noise

KW - Subcarrier multiplexing

KW - WDM

U2 - 10.1109/JPHOT.2017.2740983

DO - 10.1109/JPHOT.2017.2740983

M3 - Journal article

VL - 9

JO - I E E E Photonics Journal

JF - I E E E Photonics Journal

SN - 1943-0655

IS - 5

ER -