Title :
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
fDate :
10/1/2000 12:00:00 AM
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;
Journal_Title :
Signal Processing, IEEE Transactions on
