MIMO OTA Testing Based on Transmit Signal Processing
Usually, multiple-input-multiple-output (MIMO) testbeds are combined with channel emulators for testing devices and algorithms under controlled channel conditions. In this work, we propose a simple methodology that allows over-the-air (OTA) MIMO testing using a MIMO testbed solely, avoiding the use...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/670154 |
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| Summary: | Usually, multiple-input-multiple-output (MIMO)
testbeds are combined with channel emulators for testing devices
and algorithms under controlled channel conditions. In this work, we propose a simple methodology that allows over-the-air (OTA)
MIMO testing using a MIMO testbed solely, avoiding the use of
channel emulators. The MIMO channel is emulated by linearly
combining the signals at the testbed transmitter. The method is
fully flexible, so it is able to emulate any equivalent baseband
narrowband MIMO channel by adequately selecting the weights
of the linear combination. We derive closed-form expressions for
the computation of such weights. To prove its feasibility, the
method has been implemented and tested over a commercial
MIMO testbed. |
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| ISSN: | 1687-5869 1687-5877 |