Joint blind equalization with a shell partition-based CMA for QAM signal constellations

Author

Lee, Gi Hun ; Park, Rae-Hong

Author_Institution

Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea

Volume

3

fYear

1997

fDate

21-24 Apr 1997

Firstpage

2513

Abstract

For quadrature-amplitude modulation (QAM) systems, the joint blind equalization (JBE) algorithm, concatenation of two different equalization modes, has been widely used. After the eye is opened by the blind equalization mode, the decision-directed (DD) mode follows to improve the equalization performance with fast convergence. This paper proposes a shell partition-based constant modulus algorithm (CMA) (SPCMA) which acts as the DD mode in the JBE. Computer simulation results for 16-QAM show the effectiveness of the proposed JBE

Keywords

convergence; equalisers; quadrature amplitude modulation; 16-QAM; DD mode; JBE algorithm; QAM signal constellations; SPCMA; blind equalization mode; concatenation; decision-directed mode; equalization modes; equalization performance; fast convergence; joint blind equalization; quadrature-amplitude modulation; shell partition-based CMA; Blind equalizers; Computer simulation; Constellation diagram; Decision feedback equalizers; Dynamic range; Frequency shift keying; Maximum likelihood estimation; Partitioning algorithms; Power generation; Quadrature amplitude modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on

Conference_Location

Munich

ISSN

1520-6149

Print_ISBN

0-8186-7919-0

Type

conf

DOI

10.1109/ICASSP.1997.599605

Filename

599605