论文信息 - Spatial Focusing and Interference Reduction using MISO Time Reversal in an Indoor Application

Spatial Focusing and Interference Reduction using MISO Time Reversal in an Indoor Application

This paper evaluates the spatial focusing performance of the Time Reversal (TR) method in a multiple input single output (MISO) situation with experimental data. For the target user, the received signal is related to the channel link from the transmitter to the target receiver. The received power increases as we enlarge the array size, and it increases by 15.6dB with 16 transmit antennas, compared to the single link. For the eavesdropper, the received signal is determined by both the channel link from the transmitter to the target user and the channel link from the transmitter to the eavesdropper. In terms of unbalanced branch power, the minimum average Eavesdropping Margin (EM) and Peak Eavesdropping Margin (EMPeak) are 14dB and 13dB from 16 transmit elements.

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