NDLI: Data detection in MIMO systems with cochannel interference

Content Provider	IEEE Xplore Digital Library
Author	Yi Song Blostein, S.D.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Queen's Univ., Canada (Yi Song; Blostein, S.D.)
Abstract	The Bell Labs layered space-time (BLAST) architecture has been proposed to achieve high spectral efficiency on multi-input multi-output (MIMO) channels. Most studies of the BLAST algorithm consider spatially and temporally white noise and interference at the receiver. We study channel estimation and data detection of a MIMO system under both spatially and temporally colored interference. We derive maximum likelihood (ML) estimates of channel and spatial interference correlation matrices. By exploiting known temporal interference correlation, we extend one-time-slot ordered minimum mean-squared error (MMSE) nulling detection to a multi-time-slot version. We evaluate the symbol error rate of an uncoded QPSK MIMO system under independent Rayleigh fading. The results show that by exploiting both spatial and temporal interference correlation, we achieve about 2dB gain in SIR for a 4/spl times/4 MIMO system.
Starting Page	3
Ending Page	7
File Size	285482
Page Count	5
File Format	PDF
ISBN	0780374673
ISSN	10903038
DOI	10.1109/VETECF.2002.1040290
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Interchannel interference Maximum likelihood estimation White noise Channel estimation Fading Receiving antennas Maximum likelihood detection Error analysis Quadrature phase shift keying
Content Type	Text
Resource Type	Article

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