Towards Battery-Free Wireless Sensing and Communications

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Towards Battery-Free Wireless Sensing and Communications


Our life is becoming more convenient, efficient, and intelligent with the aid of fast-evolving wireless technologies, which require a massive deployment of interconnected but geographically scattered wireless sensing and communication devices. Conventional batteries/cords-based powering solutions will not sustain their extensive deployment, considering incurred cost, feasibility, and most of all, environmental impact. Therefore, a transformative powering solution for such large-scale and geographically scattered wireless devices becomes particularly important in supporting the widespread implementation while mitigating the environmental burden.

 

In this talk, I will introduce our research on efficiently harnessing and recycling microwave energy to power wireless sensing and communications. First, I will present a city-wide RF survey in Montreal to fully understand how much ambient RF energy is available in our environment, an essential reference for designing recycling circuits that can work in the real world. Next, I will discuss our systematic analysis and understanding of far-field wireless power harvesting, enabling us to identify effective ways to enhance harvesting efficiency. Then, I will describe our advances in harmonic backscattering communication in the sub-6 GHz and millimeter-wave bands, including architecture improvement, accurate nonlinear analysis, and detection range enhancement. Finally, I will conclude this talk with my outlook on emerging opportunities for battery-free wireless sensing and communications.  



  Date and Time

  Location

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  • Date: 26 Aug 2022
  • Time: 11:00 AM to 01:00 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
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  • 2500 Polytechnique Montreal Road (Quebec)
  • Pavilion Lassonde
  • Montreal, Quebec
  • Canada H3T 1J4
  • Building: Polytechnique University
  • Room Number: L-2710

  • IEEE.SB.POLY@gmail.com

  • Co-sponsored by IEEE Student Branch of Polytechnique Montreal
  • Starts 15 August 2022 10:00 AM
  • Ends 24 August 2022 11:55 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • 0 spaces left!
  • No Admission Charge


  Speakers

Dr. Xiaoqiang Gu Dr. Xiaoqiang Gu

Topic:

Towards Battery-Free Wireless Sensing and Communications

Our life is becoming more convenient, efficient, and intelligent with the aid of fast-evolving wireless technologies, which require a massive deployment of interconnected but geographically scattered wireless sensing and communication devices. Conventional batteries/cords-based powering solutions will not sustain their extensive deployment, considering incurred cost, feasibility, and most of all, environmental impact. Therefore, a transformative powering solution for such large-scale and geographically scattered wireless devices becomes particularly important in supporting the widespread implementation while mitigating the environmental burden.

In this talk, I will introduce our research on efficiently harnessing and recycling microwave energy to power wireless sensing and communications. First, I will present a city-wide RF survey in Montreal to fully understand how much ambient RF energy is available in our environment, an essential reference for designing recycling circuits that can work in the real world. Next, I will discuss our systematic analysis and understanding of far-field wireless power harvesting, enabling us to identify effective ways to enhance harvesting efficiency. Then, I will describe our advances in harmonic backscattering communication in the sub-6 GHz and millimeter-wave bands, including architecture improvement, accurate nonlinear analysis, and detection range enhancement. Finally, I will conclude this talk with my outlook on emerging opportunities for battery-free wireless sensing and communications.  

Biography:

Dr. Xiaoqiang Gu is currently an FRQNT Postdoc Research Fellow in the Department of Electrical and Computer Engineering at McGill University, where his research focuses on energy-efficient emerging wireless sensing and communications. Before joining McGill, he finished one-year postdoc research at Ecole Polytechnique de Montreal, supported by Mitacs and one industrial sponsor. He received his Ph.D. in Electrical Engineering from Ecole Polytechnique de Montreal in 2020. His work has been recognized by a number of awards, including the IEEE MTT-S Graduate Fellowship Award, URSI Young Scientist Award, and Best Student Paper Award at the IEEE Wireless Power Transfer Conference.  

Email:

Address:Montreal, Canada





IEEE Student Branch of Polytechnique Montreal