Efficient computation of the delay-optimized finite length MMSE-DFE

Author

Al-Dhahir, Naofal ; Ciofa, J.M.

Author_Institution

GE Corp. Res. & Dev., Schenectady, NY, USA

Volume

44

Issue

5

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1288

Lastpage

1292

Abstract

We present new fast algorithms for computing the optimum settings of a finite-length minimum-mean-square-error decision feedback equalizer (MMSE-DFE) from channel and noise estimates. These algorithms are based on displacement structure theory and generalize the algorithms of Al-Dhahir and Cioffi (see ibid., vol.43, no.11, 1995) by including delay optimization. Both symbol-spaced and fractionally spaced feedforward filters are considered

Keywords

circuit optimisation; decision feedback equalisers; delays; error analysis; estimation theory; feedforward; filtering theory; telecommunication channels; MMSE-DFE; channel estimates; delay optimization; delay optimized finite length MMSE-DFE; displacement structure theory; fast algorithms; finite-length decision feedback equalizer; fractionally spaced feedforward filters; noise estimates; symbol spaced feedforward filters; Computational complexity; Decision feedback equalizers; Delay estimation; Finite impulse response filter; Parameter estimation; Poles and zeros; Signal processing; Signal processing algorithms; Speech processing; System identification;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.502344

Filename

502344