Multi-bounce Effect in Multi-Tag Monostatic Backscatter Communications

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In this letter, we investigate the multi-bounce effect on the performance of multi-tag monostatic backscatter communication systems with multi-antenna reader. We derive a channel model for the considered system setup and propose a minimum mean square error receiver followed by a sequential demodulation to decode the backscattered information from the tags. A tight lower bound on the achievable sum rate is derived and the asymptotic analysis demonstrates the effect the different system parameters on the performance. It is shown that with proper receiver design, the multi-bounce effect can play an important role in improving the sum-rate performance especially at low signal to noise ratio regime.

Original languageEnglish
Number of pages5
Publication statusE-pub ahead of print - 14 Oct 2021
MoE publication typeA1 Journal article-refereed


  • Backscatter
  • Channel models
  • Demodulation
  • Interference
  • Monostatic backscatter
  • multi-bounce channel
  • Precoding
  • Signal to noise ratio
  • sum rate.
  • Transceivers


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