An application of amplitude and phase predistortion to OFDM systems

Author

D´Andrea, Aldo N. ; Lottici, Vincenzo ; Reggiannini, Ruggero

Author_Institution

Dipt. di Inf. Eng., Pisa Univ., Italy

Volume

3

fYear

2000

fDate

2000

Firstpage

1417

Abstract

The linearization technique known as amplitude and phase (A&P) predistortion, proposed by D´Andea et al. (1996), 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, presented by Di Benedetto and Mandarini (1995) for application to OFDM (Benedetto and Mandarino 1996). The relative performance of the A&P and the MMSE PD schemes is assessed over the AWGN channel and also in a frequency-selective fading environment

Keywords

AWGN channels; OFDM modulation; fading channels; least mean squares methods; linearisation techniques; AWGN channel; MMSE predistortion; OFDM systems; amplitude and phase predistortion; amplitude predistortion; enhancement; frequency-selective fading environment; gain; linearization technique; minimum mean square error; nonlinear RF high-power amplification; phase predistortion; power efficiency; AWGN channels; Digital video broadcasting; Fading; Filters; Linearization techniques; Mean square error methods; Nonlinear distortion; OFDM; Predistortion; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-6451-1

Type

conf

DOI

10.1109/GLOCOM.2000.891873

Filename

891873