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research article

User Effects in Beam-Space MIMO

Yousefbeiki, Mohsen  
•
Najibi, Halima  
•
Perruisseau-Carrier, Julien  
2013
IEEE Antennas and Wireless Propagation Letters

The performance and design of the novel single-RF-chain beam-space MIMO antenna concept is evaluated for the first time in the presence of the user. First, the variations of different performance parameters are evaluated when placing a beam-space MIMO antenna in close proximity to the user body in several typical operating scenarios. In addition to the typical degradation of conventional antennas in terms of radiation efficiency and impedance matching, it is observed that the user body corrupts the power balance and the orthogonality of the beam-space MIMO basis. However, capacity analyses show that throughput reduction mainly stems from the absorption in user body tissues rather than from the power imbalance and the correlation of the basis. These results confirm that the beam-space MIMO concept, so far only demonstrated in the absence of external perturbation, still performs very well in typical human body interaction scenarios.

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Type
research article
DOI
10.1109/LAWP.2013.2296560
Web of Science ID

WOS:000331301600013

Author(s)
Yousefbeiki, Mohsen  
•
Najibi, Halima  
•
Perruisseau-Carrier, Julien  
Date Issued

2013

Publisher

Institute of Electrical and Electronics Engineers

Published in
IEEE Antennas and Wireless Propagation Letters
Volume

12

Start page

1716

End page

1719

Subjects

Beam-space multiple-input-multiple-output (MIMO)

•

reconfigurable antenna

•

reduced-complexity MIMO

•

single-RF-chain MIMO

•

user effect

Peer reviewed

REVIEWED

Written at

EPFL

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Available on Infoscience
December 17, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/97994
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