@inproceedings{d6125161fc4e4c6b92abe601c9e060d1,
title = "Orthogonal frequency division multiplexing for spectrally efficient Nyquist WDM systems",
abstract = "In order to meet the increasing demand on high data rate in the backbone optical networks, we choose offset QAM Nyquist Wavelength Division Multiplexing (OQAM N-WDM) as the technique to increase the spectral efficiency (SE) of fiber-optic WDM transmission systems. To get intersymbol interference (ISI)-free transmission, root-raised-cosine (RRC) pulses are used in the transmitter. To get interchannel interference (ICI) free transmission, OQAM is employed as modulation scheme enabling the multiplexing of the users' channels with a spacing equal to the symbol rate and thus achieving the highest SE. The performance is evaluated for this system propagating over a linear chromatic dispersion (CD) channel. Simulation results show that the required optical SNR (ROSNR) at BER of 10−3 for back-to-back connection of the transmitter and receiver meets the theoretical value of OSNR for QPSK transmission i.e. ROSNR = 13.3 dB.",
keywords = "Coherent communications, Fiber optics communication, Nyquist WDM system, OQAM",
author = "Israa Slim and Changsong Xie and Nossek, {Josef A.}",
note = "Publisher Copyright: {\textcopyright} VDE VERLAG GMBH ∙ Berlin ∙ Offenbach; 18th International OFDM Workshop 2014, InOWo 2014 ; Conference date: 27-08-2014 Through 28-08-2014",
year = "2019",
language = "English",
series = "18th International OFDM Workshop 2014, InOWo 2014",
publisher = "VDE VERLAG GMBH",
pages = "23--26",
booktitle = "18th International OFDM Workshop 2014, InOWo 2014",
}