A new decorrelation algorithm for a soft decision feedback blind equalizer

Author

Krstic, Vladimir R. ; Petrovic, Zoran

Author_Institution

Inst. Mihajlo Pupin, Beograd, Serbia

Volume

1

fYear

2005

fDate

28-30 Sept. 2005

Firstpage

269

Abstract

This paper proposes a new decorrelation algorithm for a soft decision feedback blind equalizer (soft DFE) based on a DFE switching structure model. The algorithm is developed using joint entropy maximization (JEM) framework suitable for introducing a desirable nonlinearity directly into the stochastic gradient algorithm. Simulation results have shown that an efficient decorrelation based on JEM algorithm provides a better convergence rate and switching robustness than the existing hard DFE solution.

Keywords

blind equalisers; decorrelation; feedback; gradient methods; stochastic processes; decorrelation algorithm; joint entropy maximization framework; soft decision feedback blind equalizer; stochastic gradient algorithm; switching robustness; Blind equalizers; Decision feedback equalizers; Decorrelation; Entropy; Intersymbol interference; Robustness; Smoothing methods; Stochastic processes; Stochastic systems; Transversal filters; Joint entropy maximization decorrelator; soft decision feedback blind equalizer;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2005. 7th International Conference on

Print_ISBN

0-7803-9164-0

Type

conf

DOI

10.1109/TELSKS.2005.1572106

Filename

1572106