DocumentCode
2934918
Title
Linear equalizers for flat Rayleigh MIMO channels
Author
Hedayat, Ahmadreza ; Nosratinia, Aria ; Al-Dhahir, Naofal
Author_Institution
Texas Univ., Richardson, TX, USA
Volume
3
fYear
2005
fDate
18-23 March 2005
Abstract
We consider linear detectors for MIMO systems, i.e., multi-antenna systems where linear equalizers are employed to remove spatial interference. We analyze the behavior of linear equalizers through outage probability. The MMSE equalizer was found to behave in unexpected ways. Contrary to the usual intuition, the performance of MMSE and zero-forcing equalizers may not coincide at high-SNR. This is especially true at low spectral efficiencies, where the MMSE equalizer may achieve full spatial diversity.
Keywords
MIMO systems; Rayleigh channels; diversity reception; equalisers; least mean squares methods; MMSE equalizer; flat Rayleigh MIMO channels; high-SNR conditions; joint spatial encoding; linear equalizers; multiple-antenna systems; outage probability; separate spatial encoding; spatial diversity; spatial interference removal; spectral efficiency; zero-forcing equalizers; Detectors; Equalizers; Fading; Gaussian noise; Interference; MIMO; Receiving antennas; Signal to noise ratio; Transmitting antennas; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
ISSN
1520-6149
Print_ISBN
0-7803-8874-7
Type
conf
DOI
10.1109/ICASSP.2005.1415742
Filename
1415742
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