The finite-length multi-input multi-output MMSE-DFE

Author

Al-Dhahir, Naofal ; Sayed, Ali H.

Author_Institution

AT&T Shannon Lab., Florham Park, NJ, USA

Volume

48

Issue

10

fYear

2000

fDate

10/1/2000 12:00:00 AM

Firstpage

2921

Lastpage

2936

Abstract

A new theoretical framework is introduced for analyzing the performance of a finite length minimum-mean-square error decision feedback equalizer (MMSE-DFE) in a multi-input multi-output (MIMO) environment. The framework includes transmit and receive diversity systems as special cases and quantifies the diversity performance improvement as a function of the number of transmit/receive antennas and equalizer taps. Fast and parallelizable algorithms for computing the finite-length MIMO MMSE-DFE are presented for three common multi-user detection scenarios

Keywords

MIMO systems; antenna arrays; cellular radio; decision feedback equalisers; dispersive channels; diversity reception; least mean squares methods; multiuser channels; parallel algorithms; radiofrequency interference; receiving antennas; signal detection; time division multiple access; transmitting antennas; TDMA digital cellular systems; base station antenna array; decision feedback equalizer; dispersive channels; diversity performance; equalizer taps; fast algorithm; finite-length MIMO MMSE-DFE; intersymbol interference; interuser interference; minimum-mean-square error; multi-input multi-output MMSE-DFE; multi-user detection; noisy channels; parallelizable algorithm; performance analysis; receive diversity system; transmit diversity system; transmit/receive antennas; Base stations; Crosstalk; Dispersion; Finite impulse response filter; Intersymbol interference; MIMO; Multiuser detection; Receiving antennas; Signal processing; Transmitting antennas;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.869048

Filename

869048