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Conference papers
Spectral analysis of predistorted non-linear amplified multicarrier signals
Abstract : The aim of this paper is to analytically evaluate the spectral regrowth at the output of a transmitter due to the nonlinear components such as the power amplifier (PA). Therefore, we propose a generalization of existing closed-form expression for the Power Spectral Density (PSD) of nonlinear amplified multicarrier signals to be valid for any type of modulation. Then, we derive the PSD of the amplified multicarrier signal taking into account the predistortion technique. To the best of our knowledge, no analytical PSD expression of the transmitted signal taking into account the predistortion technique exists in the literature. Such analytical expression could be of particular interest to those involved in the design of cellular communications systems. In fact, this analytical expression is very useful to determine the optimal configuration of the PA and the predistortion technique that allows to obtain the maximum PA efficiency while satisfying the linearity requirements. © 2017 IEEE.
Keywords :
Closed-form expression
Analytical expressions
Wireless telecommunication systems
Spectral density
Power spectral density
Power amplifiers
Spectral regrowth
Predistortion techniques
Power spectral densities (PSD)
Spectrum analysis
Transmitted signal
Multicarrier signal
Nonlinear components
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01622529
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Tuesday, October 24, 2017 - 2:34:43 PM
Last modification on : Monday, January 24, 2022 - 2:07:48 PM
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Tuesday, October 24, 2017 - 2:34:43 PM
Last modification on : Monday, January 24, 2022 - 2:07:48 PM