Title :
A coefficients extraction algorithm for LUT-based Hammerstein predistorters
Author :
Shi, Zhan ; Zhou, Jianmin ; Hayashi, Hiroyuki ; Kubo, Tokuro
Author_Institution :
Fujitsu R&D Center Co., Ltd., Beijing
Abstract :
There are many digital baseband predistorters, which are used to overcome the nonlinearity and memory effect of power amplifier for wideband signals. Look-up table-based Hammerstein predistorter is one of them and has remarkable advantages comparing with the others. In this paper, an iterative algorithm is proposed for extracting the coefficients of the look-up table-based Hammerstein predistorter. An ADS simulation testbed is built to verify the predistorter and algorithm, and the simulation results demonstrate the good performance of our algorithm.
Keywords :
digital circuits; power amplifiers; radiocommunication; table lookup; wideband amplifiers; LUT-based Hammerstein predistorter; coefficients extraction algorithm; digital baseband predistorters; look-up table; power amplifier; wideband signals; wireless communication systems; Baseband; Finite impulse response filter; Iterative algorithms; Nonlinear distortion; Polynomials; Power amplifiers; Predistortion; Read-write memory; Table lookup; Wireless communication; Coefficients extraction algorithm; Power amplifier; Predistorter;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699434
