Open AccessComparison of the nonlinear transmission performance of quasi-Nyquist WDM and reduced guard interval OFDM
Author(s) -
Sean Kilmurray,
Tobias Fehenberger,
Polina Bayvel,
Robert I. Killey
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.004198
Subject(s) - guard interval , quadrature amplitude modulation , orthogonal frequency division multiplexing , polarization division multiplexing , phase shift keying , optics , wavelength division multiplexing , multiplexing , qam , physics , spectral efficiency , polarization mode dispersion , transmission (telecommunications) , electronic engineering , computer science , telecommunications , wavelength , bit error rate , optical fiber , engineering , beamforming , channel (broadcasting)
The nonlinear transmission performance of quasi-Nyquist wavelength-division multiplexing (qN-WDM) and reduced guard interval orthogonal frequency-division multiplexing (RGI-OFDM) using polarization-division multiplexing quadrature phase-shift-keying (PDM-QPSK) and quadrature amplitude modulation (PDM-QAM-8 and PDM-QAM-16) with high information spectral densities have been compared for the first time, both by simulations and analytically. The results show that both systems are able to reach similar maximum transmission distances of approximately 6700km, 2600km and 1100km over standard single-mode fibre for the spectral efficiencies of 3.43 bits/s/Hz, 5.25 bits/s/Hz and 7 bits/s/Hz respectively.