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Article

WiDeo: fine-grained device-free motion tracing using RF backscatter

Authors:

Dinesh Bharadia,

Manikanta Kotaru,

Sachin KattiAuthors Info & Claims

NSDI'15: Proceedings of the 12th USENIX Conference on Networked Systems Design and Implementation

Pages 189 - 204

Published: 04 May 2015 Publication History

Abstract

Could we build a motion tracing camera using wireless communication signals as the light source? This paper shows we can, we present the design and implementation of WiDeo, a novel system that enables accurate, high resolution, device free human motion tracing in indoor environments using WiFi signals and compact WiFi radios. The insight behind WiDeo is to mine the backscatter reflections from the environment that WiFi transmissions naturally produce to trace where reflecting objects are located and how they are moving. We invent novel backscatter measurement techniques that work in spite of the low bandwidth and dynamic range of WiFi radios, new algorithms that separate out the moving backscatter from the clutter that static reflectors produce and then trace the original motion that produced the backscatter in spite of the fact that it could have undergone multiple reflections. We prototype WiDeo using off-the-shelf software radios and show that it accurately traces motion even when there are multiple independent human motions occurring concurrently (up to 5) with a median error in the traced path of less than 7cm.

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Cited By

Cao ZLi CLiu LZhang M(2024)WiVelo: Fine-grained Wi-Fi Walking Velocity EstimationACM Transactions on Sensor Networks10.1145/366419620:4(1-21)Online publication date: 8-Jul-2024
https://dl.acm.org/doi/10.1145/3664196
Zhang GChi GZhang YDing XYang Z(2023)Push the Limit of Millimeter-wave Radar LocalizationACM Transactions on Sensor Networks10.1145/357050519:3(1-21)Online publication date: 17-Apr-2023
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Information & Contributors

Information

Published In

cover image Guide Proceedings

NSDI'15: Proceedings of the 12th USENIX Conference on Networked Systems Design and Implementation

May 2015

620 pages

ISBN:9781931971218

Program Chairs:
Paul Barham
Google
,
Arvind Krishnamurthy
University of Washington

Sponsors

VMware
NSF: National Science Foundation
Google Inc.
Microsoft Reasearch: Microsoft Reasearch
CISCO

Publisher

USENIX Association

United States

Publication History

Published: 04 May 2015

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Cited By

Cao ZLi CLiu LZhang M(2024)WiVelo: Fine-grained Wi-Fi Walking Velocity EstimationACM Transactions on Sensor Networks10.1145/366419620:4(1-21)Online publication date: 8-Jul-2024
https://dl.acm.org/doi/10.1145/3664196
Zhang GChi GZhang YDing XYang Z(2023)Push the Limit of Millimeter-wave Radar LocalizationACM Transactions on Sensor Networks10.1145/357050519:3(1-21)Online publication date: 17-Apr-2023
https://dl.acm.org/doi/10.1145/3570505
Zhao CLi ZDing HXi WWang GZhao J(2021)Anti-Spoofing Voice CommandsProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/34781165:3(1-22)Online publication date: 14-Sep-2021
https://dl.acm.org/doi/10.1145/3478116
Chen XLiu JWang XLiu HJiang DChen LBhagwan RPorter G(2020)EingerprintProceedings of the 17th Usenix Conference on Networked Systems Design and Implementation10.5555/3388242.3388320(1101-1114)Online publication date: 25-Feb-2020
https://dl.acm.org/doi/10.5555/3388242.3388320
Ha ULeng JKhaddaj AAdib FBhagwan RPorter G(2020)Food and liquid sensing in practical environments using RFIDsProceedings of the 17th Usenix Conference on Networked Systems Design and Implementation10.5555/3388242.3388319(1083-1100)Online publication date: 25-Feb-2020
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Liu XChi ZWang WYao YZhu TBhagwan RPorter G(2020)VMscatterProceedings of the 17th Usenix Conference on Networked Systems Design and Implementation10.5555/3388242.3388306(895-910)Online publication date: 25-Feb-2020
https://dl.acm.org/doi/10.5555/3388242.3388306
Dhekne AChakraborty ASundaresan KRangarajan SLorch JYu M(2019)TrackIOProceedings of the 16th USENIX Conference on Networked Systems Design and Implementation10.5555/3323234.3323295(751-764)Online publication date: 26-Feb-2019
https://dl.acm.org/doi/10.5555/3323234.3323295
Jang JAdib FWu JHall W(2019)Underwater backscatter networkingProceedings of the ACM Special Interest Group on Data Communication10.1145/3341302.3342091(187-199)Online publication date: 19-Aug-2019
https://dl.acm.org/doi/10.1145/3341302.3342091
Zheng YZhang YQian KZhang GLiu YWu CYang ZSong JKim MLane NBalan R(2019)Zero-Effort Cross-Domain Gesture Recognition with Wi-FiProceedings of the 17th Annual International Conference on Mobile Systems, Applications, and Services10.1145/3307334.3326081(313-325)Online publication date: 12-Jun-2019
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Xie YXiong JLi MJamieson KAgarwal SGreenstein BBalasubramanian AGollakota SZhang X(2019)mD-TrackThe 25th Annual International Conference on Mobile Computing and Networking10.1145/3300061.3300133(1-16)Online publication date: 5-Aug-2019
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