Occupant activity recognition (OAR) is essential for building management systems (BMS) to
provide occupants with intelligent and comfort environments. Conventional sensing …

Sensitive numbers play an unparalleled role in identification and authentication. Recent
research has revealed plenty of side-channel attacks to infer keystrokes, which require …

Ubiquitous WiFi signals not only provide fundamental communications for a large number of
Internet of Things devices, but also enable to estimate target's location in a contactless …

In recent years, the functionality of wireless communications has not only been limited to
communication between users, but has also been extended to sensing applications. In fact …

The rapid development of Internet of Things has led more realization of digital twins (DT),
such as healthcare, smart homes, virtual reality, etc., gesture recognition is a fundamental …

In this paper, we present a new scheme for implementing virtual keyboards, which uses only
two to four motion-recognition rings per hand and a two-dimensional keyboard template (eg …

As an essential technology in the field of the Internet of Things, Human activity recognition
(HAR) is a well-researched topic. Recently, some state-of-the-art WiFi-based HAR systems …

As wireless sensing has developed, wireless behavior recognition has become a promising
research area, in which human motion duration is one of the basic and significant …

Vital signs, such as respiration rate (RR) and heart rate (HR), are essential for human health
status assessment. The radar could detect RR and HR in a noncontact manner by sensing …

User authentication plays a critical role in access control of a man-machine system, where
the knowledge factor, such as a personal identification number, constitutes the most widely …