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Understanding and Modeling of WiFi Signal Based Human Activity Recognition

Published: 07 September 2015 Publication History

Abstract

Some pioneer WiFi signal based human activity recognition systems have been proposed. Their key limitation lies in the lack of a model that can quantitatively correlate CSI dynamics and human activities. In this paper, we propose CARM, a CSI based human Activity Recognition and Monitoring system. CARM has two theoretical underpinnings: a CSI-speed model, which quantifies the correlation between CSI value dynamics and human movement speeds, and a CSI-activity model, which quantifies the correlation between the movement speeds of different human body parts and a specific human activity. By these two models, we quantitatively build the correlation between CSI value dynamics and a specific human activity. CARM uses this correlation as the profiling mechanism and recognizes a given activity by matching it to the best-fit profile. We implemented CARM using commercial WiFi devices and evaluated it in several different environments. Our results show that CARM achieves an average accuracy of greater than 96%.

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  1. Understanding and Modeling of WiFi Signal Based Human Activity Recognition

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      cover image ACM Conferences
      MobiCom '15: Proceedings of the 21st Annual International Conference on Mobile Computing and Networking
      September 2015
      638 pages
      ISBN:9781450336192
      DOI:10.1145/2789168
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      Publication History

      Published: 07 September 2015

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      Author Tags

      1. activity recognition
      2. channel state information (CSI)
      3. wifi

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      MobiCom '15 Paper Acceptance Rate 38 of 207 submissions, 18%;
      Overall Acceptance Rate 440 of 2,972 submissions, 15%

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      Cited By

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      • (2024)Wi-AM: Enabling Cross-Domain Gesture Recognition with Commodity Wi-FiSensors10.3390/s2405135424:5(1354)Online publication date: 20-Feb-2024
      • (2024)Transfer-Learning-Based Human Activity Recognition Using Antenna ArrayRemote Sensing10.3390/rs1605084516:5(845)Online publication date: 28-Feb-2024
      • (2024)Ship Bridge OOW Activity Status Detection Using Wi-Fi Beamforming Feedback InformationJournal of Marine Science and Engineering10.3390/jmse1206087212:6(872)Online publication date: 24-May-2024
      • (2024)Multi-Person Action Recognition Based on Millimeter-Wave Radar Point CloudApplied Sciences10.3390/app1416725314:16(7253)Online publication date: 17-Aug-2024
      • (2024)Human Activity Recognition Using FixMatch-based Semi-supervised Learning with CSIJournal of Information Processing10.2197/ipsjjip.32.59632(596-604)Online publication date: 2024
      • (2024)Indoor Person Position Estimation with Channel State Information with Privacy Considerationプライバシーに配慮したChannel State Informationによる屋内の人の位置推定IEEJ Transactions on Electronics, Information and Systems10.1541/ieejeiss.144.955144:9(955-961)Online publication date: 1-Sep-2024
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      • (2024)RFBoost: Understanding and Boosting Deep WiFi Sensing via Physical Data AugmentationProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36596208:2(1-26)Online publication date: 15-May-2024
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