Kristem, Vinod ; Mehta, Neelesh B. ; Molisch, Andreas F. (2011) Energy-efficient training for antenna selection in time-varying channels In: 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 06-09 November 2011, Pacific Grove, CA, USA.
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Official URL: https://doi.org/10.1109/ACSSC.2011.6189945
Related URL: http://dx.doi.org/10.1109/ACSSC.2011.6189945
Abstract
Training for receive antenna selection (AS) differs from that for conventional multiple antenna systems because of the limited hardware usage inherent in AS. We analyze and optimize the performance of a novel energy-efficient training method tailored for receive AS. In it, the transmitter sends not only pilots that enable the selection process, but also an extra pilot that leads to accurate channel estimates for the selected antenna that actually receives data. For time-varying channels, we propose a novel antenna selection rule and prove that it minimizes the symbol error probability (SEP). We also derive closed-form expressions for the SEP of MPSK, and show that the considered training method is significantly more energy-efficient than the conventional AS training method.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Source: | Copyright of this article belongs to IEEE. |
| Keywords: | Receiving antennas; Training; Channel estimation; Transmitting antennas; Doppler effect. |
| ID Code: | 139125 |
| Deposited On: | 15 Sep 2025 10:47 |
| Last Modified: | 15 Sep 2025 10:47 |
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