Antenna selection for spatial multiplexing systems with linearreceivers
Heath, R.W., Jr.
Sandhu, S.
Paulraj, A.
Inf. Syst. Lab., Stanford Univ., CA;
This paper appears in: Communications Letters, IEEE
Publication Date: Apr 2001
Volume: 5,
Issue: 4
On page(s): 142-144
ISSN: 1089-7798
References Cited: 10
CODEN: ICLEF6
INSPEC Accession Number: 6907390
Digital Object Identifier: 10.1109/4234.917094
Current Version Published: 2002-08-07
Abstract
Future cellular systems will employ spatial multiplexing with
multiple antennas at both the transmitter and receiver to take advantage
of large capacity gains. In such systems it will be desirable to select
a subset of available transmit antennas for link initialization,
maintenance or handoff. We present a criterion for selecting the optimal
antenna subset when linear, coherent receivers are used over a slowly
varying channel. We propose use of the post-processing SNRs (signal to
noise ratios) of the multiplexed streams whereby the antenna subset that
induces the largest minimum SNR is chosen. Simulations demonstrate that
our selection algorithm also provides diversity advantage thus making
linear receivers useful over fading channels
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