Localization of objects is fast becoming a major aspect of wireless technologies, with
applications in logistics, surveillance, and emergency response. Time-of-arrival (TOA) …

As an infrastructure-free positioning and navigation method, pedestrian dead reckoning
(PDR) is still a research hotspot in the field of indoor localization. Step detection (SD) and …

In this paper, we present a novel semi-passive radio-frequency identification (RFID) system
for accurate indoor localization. The system is composed of a standard ultra high frequency …

Knowledge about the location of licensed primary-users (PU) could enable several key
features in cognitive radio (CR) networks including improved spatio-temporal sensing …

Radio frequency (RF)-powered backscatter communication between passive tags holds
tremendous potential as an enabling technology for a ubiquitous “Internet of Things.” We …

COVID-19 is highly contagious and spreads rapidly; it can be transmitted through coughing
or contact with virus-contaminated hands, surfaces, or objects. The virus spreads faster …

Confronted with the COVID-19 health crisis, the year 2020 represented a turning point for
the entire world. It paved the way for health-care systems to reaffirm their foundations by …

Aiming at the problem that the traditional Pedestrian Dead Reckoning (PDR) cannot adapt to
the reliable positioning of the target in different motion states, this paper designs and …

Recently, wireless indoor location systems have been successfully used in many
applications, such as asset tracking, indoor navigation, and inventory management. Such …

This paper addresses the problem of indoor tracking of tagged objects with Ultra High
Frequency (UHF) Radio Frequency Identification (RFID) systems. A new and more realistic …