A comparison of three algorithms for blind equalization based on the constant modulus error criterion

Author

Schirtzinger, T. ; Li, X. ; Jenkins, W.K.

Author_Institution

Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA

Volume

2

fYear

1995

fDate

9-12 May 1995

Firstpage

1049

Abstract

Three constant modulus algorithms (CMA), the fast quasi-Newton CMA, the transform domain CMA, and the genetic search based CMA are proposed in this paper. The performances of these three algorithms are compared with each other via computer simulation. It is shown that the fast quasi-Newton CMA and the transform domain CMA achieve much faster convergence rate than the constant modulus algorithm based on the LMS algorithm. This fact shows that the whitening technique is not only useful but also necessary for the CMA

Keywords

adaptive equalisers; error analysis; genetic algorithms; transforms; LMS algorithm; algorithms; blind equalization; computer simulation; constant modulus error criterion; convergence rate; fast quasi-Newton CMA; genetic search based CMA; performances; transform domain CMA; whitening technique; Adaptive equalizers; Blind equalizers; Computer errors; Computer simulation; Convergence; Cost function; Filters; Frequency domain analysis; Genetics; Least squares approximation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on

Conference_Location

Detroit, MI

ISSN

1520-6149

Print_ISBN

0-7803-2431-5

Type

conf

DOI

10.1109/ICASSP.1995.480414

Filename

480414