MIMO OTA Testing Based on Transmit Signal Processing
| Title | MIMO OTA Testing Based on Transmit Signal Processing |
| Publication Type | Journal Article |
| Year of Publication | 2013 |
| Authors | Gutiérrez, J., J. Ibáñez, and J. Pérez |
| Journal | Hindawi International Journal of Antennas and Propagation |
| Month Published | May |
| Abstract | 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) MIMOtesting 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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