Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff

  title={Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff},
  author={Bruno Clerckx and Zati Bayani Zawawi and Kaibin Huang},
  journal={IEEE Communications Letters},
This letter shows that wirelessly powered backscatter communications is subject to a fundamental tradeoff between the harvested energy at the tag and the reliability of the backscatter communication, measured in terms of SNR at the reader. Assuming the RF transmit signal is a multisine waveform adaptive to the channel state information, we derive a systematic approach to optimize the transmit waveform weights (amplitudes and phases) in order to enlarge as much as possible the SNR-energy region… CONTINUE READING
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