Comparison of adaptive algorithms performance for power amplifiers linearization in a DVB-T context

Author

Dubois, Julien ; Djoko-Kouam, Moïse ; Skrzypczak, Alexandre

Author_Institution

Dept. of Commun. Syst. Eng., ECAM Rennes - Louis de Broglie, Rennes, France

fYear

2010

fDate

21-23 Oct. 2010

Firstpage

1

Lastpage

6

Abstract

The telecommunication area is now highly involved in the "green technologies", proposing systems with limited power consumptions. As the power amplifier is, in a transmission chain, the most power dispersive element, it seems judicious to investigate solutions allowing an optimization of its throughput. A possible solution aims at distorting the signal just before amplification thanks to a predistorter, updated with an adaptive algorithm. The association of the predistorter and the power amplifier should then appear as linear as possible. This paper proposes a comparative study of the algorithms performance in a DVB-T context. From these simulations considering memoryless and memory power amplifiers, the algorithms performance in the correction of nonlinear effects is shown and analyzed.

Keywords

digital video broadcasting; linearisation techniques; power amplifiers; DVB-T context; adaptive algorithms performance; green technologies; memory power amplifiers; memoryless power amplifiers; nonlinear effects; power amplifiers linearization; power consumptions; power dispersive element; predistorter; telecommunication area; transmission chain; Adaptive algorithms; Analytical models; Context; Convergence; Digital video broadcasting; OFDM; Signal processing algorithms; DVB-T; Nonlinear power amplification; OFDM; adaptive algorithms; predistorter;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Signal Processing (WCSP), 2010 International Conference on

Conference_Location

Suzhou

Print_ISBN

978-1-4244-7556-8

Electronic_ISBN

978-1-4244-7554-4

Type

conf

DOI

10.1109/WCSP.2010.5630109

Filename

5630109