DocumentCode
538427
Title
Digital predistortion using stochastic conjugate gradient method
Author
Jiang, Hong ; Wilford, Paul ; Yu, Xin
Author_Institution
Bell Labs., Alcatel-Lucent, Murray Hill, NJ, USA
fYear
2010
fDate
25-27 Aug. 2010
Firstpage
1
Lastpage
5
Abstract
This paper is concerned with digital predistortion for linearization of RF high power amplifiers (HPAs). An iterative stochastic conjugate gradient (SCG) method is used in computing the predistorter in the digital predistortion. The SCG has the advantage of reducing the complexity and, at the same time, increasing the convergence rate and stability of iteration. We present some results of using the SCG in a hardware platform with a solid state HPA.
Keywords
conjugate gradient methods; power amplifiers; signal processing; stochastic processes; RF high power amplifiers; digital predistortion; hardware platform; stochastic conjugate gradient method; Approximation algorithms; Approximation methods; Polynomials; Predistortion; Table lookup; digital predistortion; postdistorter; power amplifier linearization; predistorter; stochastic conjugate gradient method;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications and Networking in China (CHINACOM), 2010 5th International ICST Conference on
Conference_Location
Beijing
Print_ISBN
973-963-9799-97-4
Type
conf
Filename
5684645
Link To Document