This article describes the design of a dual-orthogonal 45 polarized amplifying reconfigurable
intelligent surface (RIS). To make possible the use of two orthogonal polarizations, an RIS …

Industrial Internet of Things (IIoT), regarded as an important technology for Industry 4.0, has
the capability to connect massive IoT devices anywhere and at anytime in manufacturing …

Future wireless connectivity is envisioned to accommodate functionalities far beyond
broadband data transmission over point-to-point direct links, enabling novel scenarios, such …

This work presents a novel tri-band bandpass frequency selective surface (FSS) that
achieves high-order filtering responses in different frequency bands by means of a …

We present an advanced approach to wave manipulation utilizing mmWave wide
bandwidth, enhanced gain, and extensive spatial coverage through a 1-bit stacked patch …

Intelligent reflective surface (IRS)-assisted energy scavenging (ES) non-orthogonal multiple
access (NOMA) with jamming (sIEnoma) is promising for high spectral efficiency, energy …

Nonorthogonal multiple access (NOMA) is used to superpose multifarious user signals for
concurrent transmission, enhancing spectral efficiency. Additionally, wireless energy …

By transmitting concurrently signals of different users, non‐orthogonal multiple access
(NOMA) meliorates spectral efficiency. Moreover, intelligent reflective surface (IRS) is …

Spatial division multiple access (SDMA), a powerful method routinely applied in multi-user
multiple-input multiple-output (MIMO) communications, relies on the angular orthogonality of …

In this paper, we propose a novel system integrating reconfigurable intelligent surfaces
(RISs) with cognitive radio (CR) technology, presenting a forward-looking solution aligned …