With the rapid development of the Internet of Things (IoT) and wireless sensor networks
(WSN), the modern world requires advanced solutions for the wireless powering of low …

This paper considers various models for forecasting environmental sensor data values. The
aim is to evaluate and compare the performance of forecasting methods, such as machine …

The offset quadrature phase-shift keying (OQPSK) modulation is a key factor for the
technique of ZigBee, which has been adopted in IEEE 802.15. 4 for wireless …

This paper is devoted to studying multi-hop wireless power transfer (WPT), which is
especially applicable in autonomous wireless sensor networks. The main objective of the …

A novel single-carrier waveform scheme is proposed to overcome the main challenges in
terahertz (THz) communications such as relatively large path loss, low efficiency of power …

Terahertz (THz) communications are envisioned as a key scenario for the sixth-generation
(6G) wireless communication system, which however suffer from some challenges, such as …

This research is devoted to an experimental study on radiofrequency (RF) wireless power
transfer (WPT) employing multi-hop technology. A special multi-hop node (MHN) that uses …

This paper reports the results of an experimental study of simultaneous information and
power transfer using frequency modulated signal. The research is done in two phases: the …

The aim of this work is to demonstrate the feasibility use of an Micro air vehicles (MAV) in
order to power wirelessly an electric system, for example, a sensor network, using low-cost …

This paper describes the idea of interactive schedule board and its implementation at the
Institute of Radioelectronics, Riga Technical University. An interactive schedule board will …