An efficient blind decision feedback equalizer

Author

Goupil, Alban ; Palicot, Jacques

Author_Institution

Univ. of Reims Champagne-Ardenne, Reims, France

Volume

14

Issue

5

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

462

Lastpage

464

Abstract

Efficient and fully blind Decision Feedback Equalizer (DFE) remains an open issue, mainly because of the potential errors in the decision loop. Based on the Weighted Decision Feedback Equalizer (WDFE), our previous work aiming at decreasing the error propagation phenomena, we propose a new blind DFE called Blind Weighted Decision Feedback Equalizer. The main idea of the WDFE was to commute between Linear Recursive Equalizer (LRE) and DFE for the error computation at the decision device. In this paper, we extend this idea in order to commute also both the algorithms and the filtering structure. This commutation is performed softly and blindly.

Keywords

blind equalisers; decision feedback equalisers; blind DFE; blind weighted decision feedback equalizer; decision device; decision loop; error computation; error propagation; filtering structure; linear recursive equalizer; Blind equalizers; Convergence; Cost function; Decision feedback equalizers; Field-flow fractionation; Filtering algorithms; Filters; Gain control; Mean square error methods; Switches; Adaptive equalizer, blind equalization, blind decision feedback equalizer (DFE);

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.05.092150

Filename

5456066