Respiration rate provides important reference for disease diagnosis and rehabilitation treatment. MmWave-based respiration rate estimation has increasingly attracted attention in recent years due to its non-intrusiveness and cost-effectiveness. ...${}^{}$

Having been studied for more than a decade, Wi-Fi human sensing still faces a major challenge in the presence of multiple persons, simply because the limited bandwidth of Wi-Fi fails to provide a suficient range resolution to physically separate ...

Continuous domestic respiration monitoring provides vital information for diagnosing assorted diseases. In this article, we introduce RespTracker, the first continuous, multiple-person respiration tracking system in domestic settings using acoustic-based ...

Recent years have witnessed a growing interest in contact-free respiration monitoring leveraging radio-frequency (RF) technologies. However, the proposed solutions mostly consider single-person scenarios, whereas a few multi-person monitoring proposals ...

Inadequate sleep has very bad impacts on human daily life activities. Sleep disorders are one of the main reasons for the inadequate sleep problem. Diagnosis of these disorders is a very challenging task because they occur at night when the patients are ...

The past few years have witnessed the great potential of exploiting channel state information (CSI) retrieved from COTS WiFi devices for respiration monitoring. However, existing approaches only work when the target is close to the WiFi transceivers and ...

With the high demand for wireless data traffic, WiFi networks have experienced very rapid growth, because they provide high throughput and are easy to deploy. Recently, Channel State Information (CSI) measured by WiFi networks is widely used for ...

This paper addresses the performance of systems which use commercial wireless devices to make bistatic RF channel measurements for non-contact respiration sensing. Published research has typically presented results from short controlled experiments on ...

We describe a non-invasive breath monitoring method using spring coil which is used to detect the movement of the body surface due to breathing. In this method, subjectwares a vest with the spring coil on the inner side. Therefore, it is compressed by ...