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Nuno Borges Carvalho Passive Backscatter Sensors for IoT Ricardo Correia applications Daniel Belo Felisberto Pereira Motivation Present IoThings Near future IoThings Page 2 IT- DETI Universidade de Aveiro (nbcarvalho@ua.pt)

  1. Nuno Borges Carvalho Passive Backscatter Sensors for IoT Ricardo Correia applications Daniel Belo Felisberto Pereira

  2. Motivation Present Io“Things” Near future Io“Things” Page 2 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  3. Motivation Page 3 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  4. Motivation from QUALCOMM Page 4 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  5. Motivation Energy waste in IoT Standby Energy Battery Manufacturing One battery per IoT device and replaced every 2 nd year Source: 2016 data http://edna.iea-4e.org Page 5 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  6. Motivation Energy waste in IoT Standby Energy Batteries take hundreds of years to decompose , posing a serious threat to the public health and to the environment. Page 6 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  7. AAA CR2032 CR123A CR2 Market Solutions Power Consumption 60 50 40 Years 30 20 Type AAA CR2032 CR123A CR2 10 Material Alkaline LiMn02* Lithium Lithium 0 Voltage 3V 3V 3V 3V 0 50 100 150 200 250 300 350 Transactions per day Capacity 500 mAh 225 mAh 1500 mAh 800 mAh Page 7 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  8. Energy harvesting sources Radio and TV GSM/Cellular broadcast Wi-Fi Page 8 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  9. The Solution Passive LoRa – 60 mW to 400 mW WiFi – 50 mW to 1 W Bluetooth – 5 mW to 90 mW Energy Wireless Power Harvesting Transmission • Remove the need of power for transmit / receive! • Eliminate batteries! Backscatter communications Page 9 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  10. SWIPT Simultaneous Wireless Information and Power Transfer Energy Wireless Power Harvesting Transmission Backscatter communications Page 10 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  11. Our Solution – SWIPT backscatter Passive Sensors Low Cost SDR Readers Dummy Wireless Power Transmitters Page 11 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  12. Backscatter Battery-less Paradigm IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt) 12

  13. Towards the FUTURE!! Increase frequency and Increase data rate and kbit/s Gbit/s decrease size enable WPT capabilities Passive Sensors Increase Data rate 2016 2015 2017 2018 2019 Total size = 0.92 mm 2 Page 13 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  14. Backscatter ambient backscatter Spyridon N Daskalakis et all, “Spectrally Efficient 4 -PAM Ambient FM Backscattering for Wireless Sensing and RFID Applications”, to be presents in the next IMS2018 in Philadelphia IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt) 14

  15. mmWave low power connectivity – Applications & Investors • Glaucoma • Diabetes (track the blood sugar levels – measure glucose) Extremely small, low power and cheap connectivity solution which can be embedded in every object Page 15 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

  16. Thank you very much for your attention Page 16 IT- DETI – Universidade de Aveiro (nbcarvalho@ua.pt)

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