[Zl16] Theoretical Analysis of the Power Spectral Density for FFT-FBMC signals

Revue Internationale avec comité de lecture : Journal IEEE communication letters, pp. x, 2016, (doi:10.1109/LCOMM.2016.2588497)
Résumé: Filter-bank multicarrier (FBMC) modulation is appreciated for its spectrum well-localization. However, the drawback of FBMC is the presence of the intrinsic interference that prevents the application of some MIMO techniques. Recently, FFT-FBMC was proposed to get rid of the intrinsic interference by performing FFT/IFFT precoding and postcoding on each subcarrier. Consequently, FFT-FBMC affects and modifies the spectrum of the transmitted signal. In this letter, we address the power spectral density (PSD) of the FFT-FBMC transmitted signal. We theoretically derive the expression of the PSD of FFTFBMC signal. We also show that the FFT precoding of the signals on each subcarrier has the advantage to reduce the frequency band occupied by each subcarrier. Consequently, we will show that FFT-FBMC spectrum is more frequency-localized than that of the conventional FBMC.


@article {
title="{Theoretical Analysis of the Power Spectral Density for FFT-FBMC signals}",
author="R. Zakaria and D. le Ruyet",
journal="IEEE communication letters",