In recent years, considerable effort has been directed towards non-contact Wi-Fi sensing
applications such as fall detection and vital sign monitoring. For emerging technologies in …

Respiration rate is an essential vital indicator for health monitoring. While traditional sensor-
based methods support acceptable sensing performance, the recent advance in wireless …

Wi-Fi-based non-contact respiratory monitoring technology plays a significant role in smart
elderly care by eliminating the need for users to wear additional hardware devices. Although …

Breathing is an essential component to assess the physical health of human being. This
paper presents a low-cost and contactless method for respiration estimation of a standing or …

Respiration rate is an important healthcare indicator, and it has become a popular research
topic in remote healthcare applications with Internet of Things. Existing respiration …

Human pulmonary function declines with age. Elders, especially those with lung or
cardiovascular diseases, yearn for daily lung function tests for timely diagnosis and …

Respiration monitoring has been attracting substantial attention because of its potential for
assessing sleep stages and quality. Traditional approaches for respiratory rate tracking …

In this paper, we introduce TR-BREATH, a time-reversal (TR)-based contact-free breathing
monitoring system. It is capable of breathing detection and multiperson breathing rate …

Recently, non-intrusive respiration monitoring has attracted much attention. Many respiration
monitoring systems using the commercial off-the-shelf WiFi devices have been developed …

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 …