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Adaptive wireless-powered network based on CNN near-field positioning by a dual-band metasurface

Author

Listed:
  • De Xiao Xia

    (Xidian University)

  • Jia Qi Han

    (Xidian University)

  • Ya Jie Mu

    (Xidian University)

  • Lei Guan

    (Xidian University)

  • Xin Wang

    (Xidian University)

  • Xiang Jin Ma

    (Xidian University)

  • Li Hao Zhu

    (Xidian University)

  • Tian Guang Lv

    (Xidian University)

  • Hai Xia Liu

    (Xidian University)

  • Yan Shi

    (Xidian University)

  • Long Li

    (Xidian University)

  • Tie Jun Cui

    (Southeast University)

Abstract

With the improvement of industry, the connectivity of electronic devices gradually shift from wired to wireless. As a solution for power delivery, the non-contact power transfer holds promising ways to charge for moving terminals, enabling battery-free sensing, processing, and communication. Based on a dual-band metasurface, this study proposes an adaptive wireless-powered network (AWPN) to realize the simultaneous wireless localization and non-contact power supply. It first achieves localization with 3 cm resolution on a single-input single-output (SISO) system, by combining space-time-coding (STC) and convolutional neural network (CNN). With precise position information, AWPN real-time aligns power beams to the terminals for stable energy transmission. Then, battery-free terminals enable to perceive the environmental data and uploads the results. From the measurement results, AWPN gets more than 98% CNN classification accuracy and can tolerate certain environmental changes. Thus, being adaptive and contactless, our study will propel the advancement in Internet of Things (IoT), intelligent metasurface, and the robot industry.

Suggested Citation

  • De Xiao Xia & Jia Qi Han & Ya Jie Mu & Lei Guan & Xin Wang & Xiang Jin Ma & Li Hao Zhu & Tian Guang Lv & Hai Xia Liu & Yan Shi & Long Li & Tie Jun Cui, 2024. "Adaptive wireless-powered network based on CNN near-field positioning by a dual-band metasurface," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-54800-2
    DOI: 10.1038/s41467-024-54800-2
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    References listed on IDEAS

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