The linearization technique known as amplitude and phase (A&P) predistortion, recently proposed by the authors in , is applied to the OFDM transmission context with nonlinear RF high-power amplification. The above technique is shown to provide a major enhancement in power efficiency in comparison with the unprotected system, as well as a nonnegligible gain over an alternative linearization strategy, identified as minimum mean square error (MMSE) predistortion, recently presented in the literature for application to OFDM. The relative performance ofthe A&P and the MMSE PD schemes is assessed over the AWGN channel and also in a frequency-selective fading environment.
|Titolo:||An Application of Amplitude and Phase Predistortion to OFDM Systems|
D'ANDREA, NUNZIO ALDO (Co-primo)
LOTTICI, VINCENZO (Co-primo)
REGGIANNINI, RUGGERO (Co-primo)
|Anno del prodotto:||2000|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|