research-article

Public Access

Battery-Free Cellphone

Authors:

Shyamnath Gollakota,

Joshua R. SmithAuthors Info & Claims

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Volume 1, Issue 2

Article No.: 25, Pages 1 - 20

https://doi.org/10.1145/3090090

Published: 30 June 2017 Publication History

Abstract

We present the first battery-free cellphone design that consumes only a few micro-watts of power. Our design can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time. Our system optimizes transmission and reception of speech while simultaneously harvesting power which enables the battery-free cellphone to operate continuously. The battery-free device prototype is built using commercial-off-the-shelf components on a printed circuit board. It can operate on power that is harvested from RF signals transmitted by a basestation 31 feet (9.4 m) away. Further, using power harvested from ambient light with tiny photodiodes, we show that our device can communicate with a basestation that is 50 feet (15.2 m) away. Finally, we perform the first Skype call using a battery-free phone over a cellular network, via our custom bridged basestation. This we believe is a major leap in the capability of battery-free devices and a step towards a fully functional battery-free cellphone.

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Cited By

Bhat NGupta ABansal IGovindarajan HBharadia DShu YLiu JTan RHe YChen J(2024)ZenseTag: An RFID assisted Twin-Tag Single Antenna COTS Sensor InterfaceProceedings of the 22nd ACM Conference on Embedded Networked Sensor Systems10.1145/3666025.3699342(336-350)Online publication date: 4-Nov-2024
https://dl.acm.org/doi/10.1145/3666025.3699342
Kraemer CGelder WHester J(2024)User-directed Assembly Code Transformations Enabling Efficient Batteryless Arduino ApplicationsProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36595908:2(1-32)Online publication date: 15-May-2024
https://dl.acm.org/doi/10.1145/3659590
Wang SYan YHan FTian YDing YYang PLi XOkoshi TKo JLiKamWa R(2024)MultiRider: Enabling Multi-Tag Concurrent OFDM Backscatter by Taming In-band InterferenceProceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services10.1145/3643832.3661862(292-303)Online publication date: 3-Jun-2024
https://dl.acm.org/doi/10.1145/3643832.3661862
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Index Terms

Battery-Free Cellphone
1. Computer systems organization
  1. Embedded and cyber-physical systems
2. Human-centered computing
  1. Ubiquitous and mobile computing

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cover image Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies Volume 1, Issue 2

June 2017

665 pages

EISSN:2474-9567

DOI:10.1145/3120957

Issue’s Table of Contents

Copyright © 2017 ACM.

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Association for Computing Machinery

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Publication History

Published: 30 June 2017

Accepted: 01 June 2017

Revised: 01 April 2017

Received: 01 February 2017

Published in IMWUT Volume 1, Issue 2

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Cited By

Bhat NGupta ABansal IGovindarajan HBharadia DShu YLiu JTan RHe YChen J(2024)ZenseTag: An RFID assisted Twin-Tag Single Antenna COTS Sensor InterfaceProceedings of the 22nd ACM Conference on Embedded Networked Sensor Systems10.1145/3666025.3699342(336-350)Online publication date: 4-Nov-2024
https://dl.acm.org/doi/10.1145/3666025.3699342
Kraemer CGelder WHester J(2024)User-directed Assembly Code Transformations Enabling Efficient Batteryless Arduino ApplicationsProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36595908:2(1-32)Online publication date: 15-May-2024
https://dl.acm.org/doi/10.1145/3659590
Wang SYan YHan FTian YDing YYang PLi XOkoshi TKo JLiKamWa R(2024)MultiRider: Enabling Multi-Tag Concurrent OFDM Backscatter by Taming In-band InterferenceProceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services10.1145/3643832.3661862(292-303)Online publication date: 3-Jun-2024
https://dl.acm.org/doi/10.1145/3643832.3661862
Ni TSun ZHan MXie YLan GLi ZGu TXu WPapavassiliou SSchmid S(2024)REHSense: Towards Battery-Free Wireless Sensing via Radio Frequency Energy HarvestingProceedings of the Twenty-fifth International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing10.1145/3641512.3686388(211-220)Online publication date: 14-Oct-2024
https://dl.acm.org/doi/10.1145/3641512.3686388
Bansal IBhat NGupta AGovindarajan HBharadia DGanesan DLane NShi W(2024)ZenseTag: An RFID assisted Twin-Tag Single Antenna COTS Sensor InterfaceProceedings of the 30th Annual International Conference on Mobile Computing and Networking10.1145/3636534.3698850(1757-1759)Online publication date: 4-Dec-2024
https://dl.acm.org/doi/10.1145/3636534.3698850
Xia CMin TZhang DWang C(2024)Understanding the Needs of Novice Developers in Creating Self-Powered IoTProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642576(1-17)Online publication date: 11-May-2024
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Mir MGuzman BVarshney AGiustiniano D(2024)LiFi for Low-Power and Long-Range RF BackscatterIEEE/ACM Transactions on Networking10.1109/TNET.2023.334431632:3(2237-2252)Online publication date: Jun-2024
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Zhu FZhao RWang BWang XGuan XZhou CTian X(2024)Enabling OFDMA in Wi-Fi BackscatterIEEE/ACM Transactions on Networking10.1109/TNET.2023.329037032:1(427-444)Online publication date: Feb-2024
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Tian XZhu FLi HOuyang MFeng LTong XWang X(2024)MobiScatter: Enhancing Capacity in Drone-Assisted High-Concurrency Backscatter NetworksIEEE/ACM Transactions on Networking10.1109/TNET.2023.329016832:1(535-549)Online publication date: Feb-2024
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Liu GWang L(2024)Data on the Go: Seamless Data Routing for Intermittently-Powered Battery-Free SensingIEEE Transactions on Mobile Computing10.1109/TMC.2024.342963623:12(13406-13419)Online publication date: Dec-2024
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