Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching
Joint Authors
Krstić, Vladimir R.
Dukić, Miroslav L.
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-12-30
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
The research presented in this paper improves the structure-criterion switching performance of the blind decision feedback equalizer (DFE) which eliminates error propagation effects by optimizing both the structure and the cost criterion.
To conquer the complexity of the 64-QAM (quadrature amplitude modulated) signal constellation, the stochastic entropy-gradient algorithm is additionally regularized by the coefficient leaky term to avoid a coefficients norm overgrowth of the received signal whitener.
Effectively, the leak of coefficients is employed to ensure a stable structure-criterion switching of DFE between blind and decision-directed operation modes.
The optimization of the resulting whitening algorithm is achieved by means of two free, leaky and entropic, parameters which act in opposition to each other.
Both, the influence of the 64-QAM signal on the feedback filter behavior and the parametric optimization of the whitening algorithm are analyzed through simulations.
American Psychological Association (APA)
Krstić, Vladimir R.& Dukić, Miroslav L.. 2014. Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching. International Journal of Digital Multimedia Broadcasting،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1036402
Modern Language Association (MLA)
Krstić, Vladimir R.& Dukić, Miroslav L.. Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching. International Journal of Digital Multimedia Broadcasting No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1036402
American Medical Association (AMA)
Krstić, Vladimir R.& Dukić, Miroslav L.. Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching. International Journal of Digital Multimedia Broadcasting. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1036402
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036402