The concept of circular economy (CE) is becoming progressively popular with academia,
industry, and policymakers, as a potential path towards a more sustainable economic …

The 5G wireless cellular networks are evolving, to meet the drastic subscriber demands in
near future. This is accompanied with a rise in the energy consumption in cellular networks …

Wireless charging is a technique of transmitting power through an air gap to an electrical
device for the purpose of energy replenishment. Recently, wireless charging technology has …

Password-based remote user authentication schemes are widely investigated, with recent
research increasingly combining a user's biometrics with a password to design a remote …

Indoor positioning systems (IPSs) are attracting more and more attention from the academia
and industry recently. Among them, approaches based on WiFi techniques are more …

Abstract The current SARS-CoV-2, better know as COVID-19, has emerged as a serious
pandemic with life-threatening clinical manifestations and a high mortality rate. One of the …

Machine-to-machine (M2M) constitutes the communication paradigm at the basis of Internet
of Things vision. M2M solutions allow billions of multi-role devices to communicate with each …

In an indoor environment, there commonly exist a large number of multipaths due to rich
scatterers. These multipaths make the indoor positioning problem very challenging. The …

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 …

Smart grid applications are becoming increasingly popular, as they aim to meet the energy
requirements with innovative solutions by integrating the latest digital communications and …