Simulation-based analysis of nonlinearities in multicarrier OFDM signals

A new expression for the statistical description of the output of an OFDM signal applied to a general small and large signal model of a memoryless nonlinear amplifier is derived. Based on this some new results for modulation fidelity (MF) deterioration due to power amplifier (PA) nonlinearities and...

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Bibliographic Details
Main Authors: O'Droma, M., Mgebrishvili, N., Goacher, A.
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Digital video broadcasting
Gaussian processes
Nonlinear distortion
OFDM modulation
Power amplifiers
Radio frequency
Radiofrequency amplifiers
RF signals
Signal analysis
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Description
Summary:A new expression for the statistical description of the output of an OFDM signal applied to a general small and large signal model of a memoryless nonlinear amplifier is derived. Based on this some new results for modulation fidelity (MF) deterioration due to power amplifier (PA) nonlinearities and its amelioration by the application of PA linearisation are presented.
DOI:10.1109/SPAWC.2004.1439316