Recent research has demonstrated the feasibility of detecting human respiration rate non-
intrusively leveraging commodity WiFi devices. However, is it always possible to sense …

In recent years, we have seen efforts made to simultaneously monitor the respiration of
multiple persons based on the channel state information (CSI) retrieved from commodity …

Recent years have witnessed a trend of monitoring human respiration using Channel State
Information (CSI) retrieved from commodity WiFi devices. Existing approaches essentially …

The past few years have witnessed the great potential of exploiting channel state information
retrieved from commodity WiFi devices for respiration monitoring. However, existing …

Human respiration detection based on Wi-Fi signals does not require users to carry any
device, hence it has drawn a lot of attention due to better user acceptance and great …

In this paper, we propose a contact-free breath tracking system, BreathTrack, to track the
status of breath using the off-the-shelf WiFi devices. BreathTrack exploits the phase variation …

Non-invasive human sensing based on radio signals has attracted numerous research
interests in recent years. Previous work mainly focused on detecting the presence of a …

Monitoring breathing rates and patterns helps in the diagnosis and potential avoidance of
various health problems. Current solutions for respiratory monitoring, however, are usually …

The ubiquity of Wi-Fi infrastructure has facilitated the development of a range of Wi-Fi based
sensing applications. Wi-Fi sensing relies on weak signal reflections from the human target …

Despite extensive research effort on contactless WiFi sensing over the past few years, there
are still significant barriers hindering its wide application. One key issue is the limited …