DocumentCode :
1704995
Title :
Impact of Mutual Coupling and Antenna Efficiencies on Adaptive Switching Between MIMO Transmission Strategies
Author :
Bhagavatula, R. ; Heath, R.W., Jr. ; Forenza, A. ; Piazza, D. ; Dandekar, K.R.
Author_Institution :
Univ. of Texas at Austin, Austin
fYear :
2007
Firstpage :
749
Lastpage :
753
Abstract :
Previous research has shown that adaptive switching between multiple-input multiple-output (MIMO) transmission strategies like spatial multiplexing and beamforming increases link reliability and capacity gains, as compared to fixed transmission strategies. To get the full benefit of adaptive switching it is necessary to obtain accurate estimates of the SNR values when we switch between the transmission strategies. In this paper, it is shown that (relatively more) accurate switching point estimates can be obtained by taking into account real-life effects like mutual coupling and antenna efficiencies, for switching between statistical beamforming and spatial multiplexing. Using simulations, it is shown that accounting for these effects can make the switching point estimate more accurate by as much as 12 dB, compared to the case when the practical effects are not considered.
Keywords :
MIMO communication; antennas; multiplexing; statistical analysis; MIMO transmission strategies; adaptive switching; antenna efficiencies; multiple-input multiple-output; mutual coupling; spatial multiplexing; statistical beamforming; Adaptive arrays; Array signal processing; Dielectric losses; MIMO; Mutual coupling; Performance gain; Receiving antennas; Samarium; Switches; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th
Conference_Location :
Baltimore, MD
ISSN :
1090-3038
Print_ISBN :
978-1-4244-0263-2
Electronic_ISBN :
1090-3038
Type :
conf
DOI :
10.1109/VETECF.2007.166
Filename :
4349815
Link To Document :
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