A DFE coefficient placement algorithm for sparse reverberant channels

Author

Lopez, Michael J. ; Singer, Andrew C.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA

Volume

49

Issue

8

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

1334

Lastpage

1338

Abstract

We develop an automated algorithm for determining the number and sparsely supported locations of coefficients in a multi-element array decision-feedback equalizer based on an estimated channel response. We aim for robustness to a wide variety of possible channel conditions, especially through taking advantage of the interplay between the MMSE-optimal feedforward and feedback filters

Keywords

acoustic signal processing; circuit feedback; circuit optimisation; decision feedback equalisers; feedforward; least mean squares methods; reverberation; telecommunication channels; underwater sound; DFE coefficient placement algorithm; MMSE-optimal feedback filters; MMSE-optimal feedforward filters; automated algorithm; channel conditions; channel response estimation; multi-element array decision-feedback equalizer; sparse reverberant channels; sparsely supported coefficients location; underwater acoustic channel; Decision feedback equalizers; Delay; Digital communication; Diversity reception; Intersymbol interference; Nonlinear filters; Reduced order systems; Robustness; Underwater acoustics; Underwater communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.939844

Filename

939844