Article | GigaHertz 2003. Proceedings from the Seventh Symposium | Adaptive predistorter design for nonlinear high power amplifiers

Title:
Adaptive predistorter design for nonlinear high power amplifiers
Author:
A. Behravan: Department of Signals and Systems, Chalmers University of Technology, Sweden T. Eriksson: Department of Signals and Systems, Chalmers University of Technology, Sweden A. Svensson: Department of Signals and Systems, Chalmers University of Technology, Sweden H. Zirath: Department of Microtechnology and Nanoscience, Chalmers University of Technology, Sweden
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Year:
2003
Conference:
GigaHertz 2003. Proceedings from the Seventh Symposium
Issue:
008
Article no.:
005
No. of pages:
4
Publication type:
Abstract and Fulltext
Published:
2003-11-06
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


In this paper we present and compare several models of compensating the nonlinearity of the RF front-end of a wireless system. The baseband compensation techniques have gained more attentions due to the simplicity of DSP implementation and also utilizing adaptive algorithms. Two baseband compensation techniques; namely predistortion and postdistortion (equalization) of the baseband signal are discussed and teh problems associated with each one is addressed. Furthermore a combination of a predistorter and a nonlinear equalizer is studied. It is shown that under realistic conditions with a frequently saturated amplifier and ISI channel; the latter methods is able to compensate the nonlinearity up to a good extent; while the first two methods can only operate under certain channel conditions and nonlinearity type.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
A. Behravan, T. Eriksson, A. Svensson, H. Zirath
Title:
Adaptive predistorter design for nonlinear high power amplifiers
References:

[1] S. Pupolin ans L.J. Greenstein; “Performance analysis of of digital radio links with nonlinear transmit amplifier;” IEEE Journal on Selected Areas in Communications; vol. 5; pp.534–536; Apr. 1987.


[2] G. Karam and H. Sari; “Analysis of predistortion; equalization; and ISI cancellation techniques in digital radio systems with nonlinear transmit amplifier;” IEEE Transactions on Communications; vol. 37; pp.1245–1253; Dec. 1989.


[3] G. Lazzarin; S. Pupolin and A. Sarti; “Nonlinearity compensation in digital radio systems;“ IEEE Transactions on Communications; vol. 42; pp.988–999; Feb. 1994.


[4] D.S. Han and T. Hwang; “An adaptive pre-distorter for the compensation of HPA nonlinearity;“ IEEE Transactions on Broadcasting; vol. 46; pp.152–157; June 2000.


[5] C. Eun and E.J. powers; “A predistorter design for a memory-less nonlinearity preceded by a dynamic linear system;“ Proceeding of the IEEE Global communications conference; pp.152–156; Nov. 1995.


[6] H. Besbes and T. Le-Ngoc; “A fast adaptive predistorter for nonlinearlyamplified M-QAM signal;“ Proceeding of the IEEE Global communications conference; vol. 1; pp.108–112; Nov.-Dec. 2000.


[7] A. Papoulis and S. Unnikrishna; “A fast adaptive predistorter for nonlinearly amplified M-QAM signal;“ Probability; Random Variables and Stochastic Processes; McGraw-Hill; 2001.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
A. Behravan, T. Eriksson, A. Svensson, H. Zirath
Title:
Adaptive predistorter design for nonlinear high power amplifiers
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