Effects of high-power amplification on linear multiuser detectors performance in DS-CDMA frequency-selective fading channels

Author

Rugini, L. ; Banelli, P. ; Cacopardi, S.

Author_Institution

Perugia Univ., Italy

Volume

2

fYear

2002

fDate

17-21 Nov. 2002

Firstpage

1061

Abstract

The aim of this paper is to examine the effects of the nonlinear distortions introduced by high-power amplifiers (HPAs) in the downlink of direct-sequence code-division multiple-access (DS-CDMA) systems. By modelling the nonlinear distortion noise as coloured Gaussian noise, a semi-analytical expression for the symbol-error rate (SER) of linear multiuser detectors (LMDs) in frequency-selective fading channels has been derived. Simulation results confirm the effectiveness of the theoretical approach.

Keywords

Gaussian noise; cellular radio; code division multiple access; fading channels; mobile satellite communication; multiuser detection; nonlinear distortion; power amplifiers; radio links; radiofrequency amplifiers; spread spectrum communication; DS-CDMA frequency-selective fading channels; cellular mobile communication systems; coloured Gaussian noise; direct-sequence code-division multiple-access systems; downlink; frequency-selective fading channels; high-power amplification; high-power amplifiers; linear multiuser detectors; linear multiuser detectors performance; nonlinear distortion noise; nonlinear distortions; satellite mobile communication systems; simulation results; symbol-error rate; Base stations; Baseband; Degradation; Detectors; Downlink; Frequency; Frequency-selective fading channels; Gaussian noise; Multiaccess communication; Nonlinear distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE

Print_ISBN

0-7803-7632-3

Type

conf

DOI

10.1109/GLOCOM.2002.1188358

Filename

1188358