A flexible method of LUT indexing in digital predistortion linearization of RF power amplifiers

Author

Hassani, Javad Yavand ; Kamarei, Mahmoud

Author_Institution

Dept. of Electr. & Comput. Eng., Tehran Univ., Iran

Volume

1

fYear

2001

fDate

6-9 May 2001

Firstpage

53

Abstract

A new method of lookup table (LUT) indexing for use in the RF power amplifier linearization with digital predistortion is presented. In this method the density of table entries in a specified amplitude region, is proportional to the amplifier nonlinearity in that region. This method is simple, flexible, and adaptive. Simulation results show considerable improvement of Adjacent Channel Interference (ACI) compared to the conventional indexing with the amplitude method

Keywords

adjacent channel interference; electric distortion; linearisation techniques; power amplifiers; radiofrequency amplifiers; table lookup; ACI; LUT indexing; RF power amplifiers; adjacent channel interference; amplifier nonlinearity; digital predistortion linearization; flexible method; lookup table indexing; Hardware; Indexing; Interchannel interference; Neural networks; Polynomials; Power amplifiers; Predistortion; Radio frequency; Radiofrequency amplifiers; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.921786

Filename

921786