PhaseBeat: Exploiting CSI Phase Data for Vital Sign Monitoring with Commodity WiFi Devices

Vital signs, such as respiration and heartbeat, are useful to health monitoring since such signals provide important clues of medical conditions. Effective solutions are needed to provide contact-free, easy deployment, low-cost, and long-term vital sign monitoring. In this paper, we present PhaseBea...

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Vydáno v:Proceedings of the International Conference on Distributed Computing Systems s. 1230 - 1239
Hlavní autoři: Xuyu Wang, Chao Yang, Shiwen Mao
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.06.2017
Témata:
Antenna measurements
Biomedical monitoring
Channel State Information
commodity 5GHz WiFi
health sensing
Monitoring
OFDM
Phase measurement
Receivers
vital sign monitoring
Wireless fidelity
ISSN:1063-6927
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Shrnutí:Vital signs, such as respiration and heartbeat, are useful to health monitoring since such signals provide important clues of medical conditions. Effective solutions are needed to provide contact-free, easy deployment, low-cost, and long-term vital sign monitoring. In this paper, we present PhaseBeat to exploit channel state information (CSI) phase difference data to monitor breathing and heartbeat with commodity WiFi devices. We provide a rigorous analysis of the CSI phase difference data with respect to its stability and periodicity. Based on the analysis, we design and implement the PhaseBeat system with off-the-shelf WiFi devices, and conduct an extensive experimental study to validate its performance. Our experimental results demonstrate the superior performance of PhaseBeat over existing approaches in various indoor environments.
ISSN:1063-6927
DOI:10.1109/ICDCS.2017.206