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Filter Bank MultiCarrier (FBMC) is now a recognized alternative to Orthogonal Frequency Division Multiplexing (OFDM) for 5G communications and cognitive radio thanks to its improved spectral occupancy. However, the RF front-end is not linear and distorts the signal. In this article, we study the impact of the Power Amplifier (PA) on the signal's spectral performances, first by using a theoretical...
This article presents the evaluation of out-of-band spectral pollution caused by the nonlinearities of the PA at the RF front-end for FBMC/OQAM signals, as well as the improvement of those spectral performances thanks to an envelope dynamic reduction method based on precoding. We also study the in-band spectral pollution by creating notches in the spectrum, in the perspective of fragmented spectrum...
Filter Bank MultiCarrier - Offset QAM (FBMC-OQAM) is now a recognized alternative to Orthogonal Frequency Division Multiplexing (OFDM) for the transmission of multicarrier signals thanks to its improved spectral occupation. However FBMC-OQAM presents a high occurrence of power peaks. In order to reduce the occurrence of large power peaks, we present two efficient precoding methods: Filter Bank (FB)...
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