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Two novel schemes to compensate HPA non-linearity on the FBMC/OQAM signal | IEEE Conference Publication | IEEE Xplore

Two novel schemes to compensate HPA non-linearity on the FBMC/OQAM signal


Abstract:

High Power Amplifier (HPA) non-linearity has received utmost attention in the current study of MultiCarrier Modulation (MCMs) systems (Orthogonal Frequency Division Multi...Show More

Abstract:

High Power Amplifier (HPA) non-linearity has received utmost attention in the current study of MultiCarrier Modulation (MCMs) systems (Orthogonal Frequency Division Multiplexing (OFDM), and Filter Bank Multicarrier Modulations/Offset Quadrature Amplitude Modulations (FBMC/OQAM)) characterized by a high Peak to Average Power Ratio (PAPR). With high PAPR, an MCM signal suffers from distortions when it is amplified with a non-linear HPA. The linearization and the PAPR reduction approaches were separately proposed to deal with the effects of HPA non-linearity and moderate the expensive cost of high performance linear HPA. To date, research has not considered the idea of combining both approaches for the FBMC/OQAM system. In this paper, we propose and compare two schemes based on the joint use of the PAPR reduction and the linearization process, for both the OFDM and FBMC/OQAM systems. Numerical results showed that the two suggested combinations of the Tone Reservation (TR) PAPR reduction scheme and the Neural Networks Predistortion(NNPD) schemes outperform the separate use of TR and NNPD for both OFDM and FBMC/OQAM systems.
Date of Conference: 25-29 June 2018
Date Added to IEEE Xplore: 30 August 2018
ISBN Information:
Electronic ISSN: 2376-6506
Conference Location: Limassol, Cyprus

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