On CSI-Based Vital Sign Monitoring Using Commodity WiFi
ACM Transactions on Computing for Healthcare(2020)
摘要
Vital signs, such as respiration and heartbeat, are useful for health monitoring because 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 article, we present PhaseBeat to exploit channel state information, in particular, phase difference data to monitor breathing and heart rates with commodity WiFi devices. We provide a rigorous analysis of channel state information phase difference 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.
更多查看译文
关键词
Channel state information,commodity 5-GHz WiFi,health sensing,vital sign monitoring
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络