Flexible MMSE DFE using length and LAG adaptation

Author

Gong, Yu ; Cowan, Colin F N

Author_Institution

Inst. of Electron., Commun. & Inf. Technol., Queen´´s Univ., Belfast

fYear

2005

fDate

17-20 July 2005

Firstpage

185

Lastpage

190

Abstract

This paper investigates how to choose the optimum tap-length and decision delay for the decision feedback equalizer (DFE). Although the feedback filter length can be set as the channel memory, there is no closed-form expression for the feedforward filter length and decision delay. In this paper, first we analytically show that the two dimensional search for the optimum feedforward filter length and decision delay can be simplified to a one dimensional search, and then describe a new adaptive DFE where the optimum structural parameters can be self-adapted

Keywords

adaptive equalisers; adaptive filters; decision feedback equalisers; delays; feedforward; least mean squares methods; search problems; telecommunication channels; MMSE equalizer; adaptive DFE; channel memory; decision delay; decision feedback equalizer; minimum mean square error; optimum feedforward filter length; structural parameter; two-dimensional search; Adaptive filters; Closed-form solution; Decision feedback equalizers; Delay; Field-flow fractionation; Information technology; Mean square error methods; Niobium; Robustness; Structural engineering;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal Processing, 2005 IEEE/SP 13th Workshop on

Conference_Location

Novosibirsk

Print_ISBN

0-7803-9403-8

Type

conf

DOI

10.1109/SSP.2005.1628588

Filename

1628588