Efficient implementation of a variable projection order affine projection algorithm

Author

Albu, F. ; Paleologu, C. ; Benesty, J.

Author_Institution

Fac. of Electron., Telecommun., & Inf. Technol., Univ. Politeh. of Bucharest, Bucharest, Romania

fYear

2010

fDate

19-22 Sept. 2010

Firstpage

369

Lastpage

373

Abstract

Many fast affine projection (FAP) algorithms have been proposed in the last two decades. These algorithms offer a good tradeoff between convergence rate and computational complexity. Most of the existing FAP algorithms use a constant projection order. Recently, the evolutionary APA (E-APA) with a variable projection order has been proposed. In this paper, an efficient implementation of the E-APA based on dichotomous coordinate descent (DCD) method is proposed and investigated. It is shown that the proposed algorithm obtains both fast convergence speed and small steady-state error.

Keywords

adaptive filters; affine transforms; computational complexity; echo suppression; adaptive filters; affine projection algorithm; computational complexity; convergence rate; convergence speed; dichotomous coordinate descent method; echo suppression; evolutionary APA; steady-state error; variable projection order; Adaptive filters; Algorithm design and analysis; Complexity theory; Convergence; Projection algorithms; Signal processing algorithms; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems (ISWCS), 2010 7th International Symposium on

Conference_Location

York

ISSN

2154-0217

Print_ISBN

978-1-4244-6315-2

Type

conf

DOI

10.1109/ISWCS.2010.5624408

Filename

5624408