Quantization error improvement in a digital predistorter for RF power amplifier linearization

Author

Hassani, Javad Yavand ; Kamareei, Mahmood

Author_Institution

Fac. of Eng., Tehran Univ., Iran

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1201

Abstract

Power amplifier linearization is very necessary in the third generation of mobile communications. This paper presents some modifications of a complex gain-based predistorting linearizer. The required hardware for the modifications is very simple and negligible. The modifications may be used to reduce the adjacent channel interference (ACI) up to 10 dB, or 20% hardware saving with no ACI improvement. The simulation results prove the improvements

Keywords

adjacent channel interference; interference suppression; linearisation techniques; mobile radio; power amplifiers; quantisation (signal); radiofrequency amplifiers; ACI reduction; RF power amplifier; adjacent channel interference; complex gain-based linearizer; digital predistorter; power amplifier linearization; predistorting linearizer; quantization error; third generation mobile communications; Dynamic range; Hardware; Mobile communication; Modulation coding; Phase modulation; Power amplifiers; Quantization; Radio frequency; Radiofrequency amplifiers; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956966

Filename

956966