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Recent work has shown the feasibility of single-channel fullduplex wireless physical layer, allowing nodes to send and receive in the same frequency band at the same time. In this paper, the authors first design and implement a real-time 64- subcarrier 10 MHz full-duplex OFDM physical layer, FDPHY. The proposed FD-PHY not only allows synchronous full-duplex transmissions but also selective asynchronous fullduplex modes. Further, they show that in over-the-air experiments using optimal antenna placement on actual devices, the self-interference can be suppressed upto 80dB, which is 10dB more than prior reported results.
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