Hybrid HOS-SOS approach for blind equalisation of communication channels

Author

Hussain, A. ; Naveed, A. ; Qureshi, I.M.

Author_Institution

Centre for Cognitive & Comput. Neurosci., Univ. of Stirling, UK

Volume

41

Issue

6

fYear

2005

fDate

3/17/2005 12:00:00 AM

Firstpage

376

Lastpage

377

Abstract

A new hybrid higher-order statistics (HOS) and second-order statistics (SOS) based approach to improve the performance of the standard Bussgang algorithm for blind equalisation of digital communication channels is presented. An additional term, based on SOS, has been added to the conventional cost function, and the Bayesian estimator has been replaced with an adaptive activation function. This is shown to give faster convergence by an order of magnitude, both in terms of epochs and the mean square error between input and output symbols at different signal-to-noise ratios (SNRs).

Keywords

blind equalisers; convergence of numerical methods; digital communication; higher order statistics; mean square error methods; statistical analysis; telecommunication channels; Bayesian estimator; Bussgang algorithm; HOS; SNR; adaptive activation function; blind equalisation; convergence; cost function; digital communication channel equalisation; higher-order statistics; hybrid statistical approach; mean square error; second-order statistics; signal-to-noise ratio;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20057272

Filename

1421210