New multimodulus blind equalization algorithm with relaxation

Author

Abrar, Shafayat ; Shah, Syed Ismail

Author_Institution

Dept. of Electr. Eng., COMSATS Inst. of Inf. Technol., Islamabad

Volume

13

Issue

7

fYear

2006

fDate

7/1/2006 12:00:00 AM

Firstpage

425

Lastpage

428

Abstract

A new multimodulus algorithm is presented for blind equalization of complex-valued communication channels. The proposed algorithm is obtained by solving a novel deterministic optimization criterion that constituted the dispersion minimization of a priori as well as a posteriori quantities, leading to an update equation having a particular zero-memory continuous nonlinearity. Analyses of automatic phase-recovery and interference cancellation capabilities of the proposed algorithm are provided

Keywords

blind equalisers; channel estimation; interference suppression; maximum likelihood estimation; aposteriori quantity; automatic phase-recovery; blind equalization; complex-valued communication channel; deterministic optimization criterion; interference cancellation; minimization; multimodulus algorithm; relaxation algorithm; Blind equalizers; Communication channels; Cost function; Finite impulse response filter; Information technology; Minimization methods; Nonlinear equations; Quadrature amplitude modulation; Signal processing algorithms; Stochastic processes; Adaptive equalizers; blind equalization algorithms;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2006.871860

Filename

1642715