Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching. (30th December 2014)
- Record Type:
- Journal Article
- Title:
- Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching. (30th December 2014)
- Main Title:
- Decision Feedback Blind Equalizer with Tap-Leaky Whitening for Stable Structure-Criterion Switching
- Authors:
- Krstić, Vladimir R.
Dukić, Miroslav L. - Other Names:
- Laddomada Massimiliano Academic Editor.
- Abstract:
- Abstract : 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.
- Is Part Of:
- International journal of digital multimedia broadcasting. Volume 2014(2014)
- Journal:
- International journal of digital multimedia broadcasting
- Issue:
- Volume 2014(2014)
- Issue Display:
- Volume 2014, Issue 2014 (2014)
- Year:
- 2014
- Volume:
- 2014
- Issue:
- 2014
- Issue Sort Value:
- 2014-2014-2014-0000
- Page Start:
- Page End:
- Publication Date:
- 2014-12-30
- Subjects:
- Multimedia communications -- Periodicals
Digital audio broadcasting -- Periodicals
Mobile communication systems -- Periodicals
Digital audio broadcasting
Mobile communication systems
Multimedia communications
Periodicals
621.382 - Journal URLs:
- https://www.hindawi.com/journals/ijdmb/ ↗
http://bibpurl.oclc.org/web/51605 ↗ - DOI:
- 10.1155/2014/987039 ↗
- Languages:
- English
- ISSNs:
- 1687-7578
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library HMNTS - ELD Digital store
- Ingest File:
- 10822.xml