DocumentCode
401096
Title
Fast adaptive RLS algorithms for polar polynomial predistorters
Author
Vo, Thai Hoa ; LE-NGOC, THO
Author_Institution
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada
Volume
2
fYear
2003
fDate
1-5 Dec. 2003
Firstpage
961
Abstract
In this paper, fast adaptive polar polynomial predistorters using the recursive-least-square (RLS) concept are presented. Based on the polar predistortion polynomial representation, the recursive relations are derived to formulate the suitable RLS procedure. Two other RLS-based structures are also proposed: the simplified RLS for low complexity and the cascaded RLS for faster convergence. Their complexity and performance in terms of convergence rate and out-of-band power emission are discussed.
Keywords
convergence; least squares approximations; quadrature amplitude modulation; recursive estimation; M-QAM; adaptive nonlinear predistortion; convergence rate; fast adaptive RLS algorithms; nonlinear amplification; out-of-band power emission; polar polynomial predistorters; recursive relations; recursive-least-square concept; Baseband; Cost function; Frequency; Polynomials; Power amplifiers; Power generation; Predistortion; Resonance light scattering; Transfer functions; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN
0-7803-7974-8
Type
conf
DOI
10.1109/GLOCOM.2003.1258381
Filename
1258381
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