Results 91 to 100 of about 5,091,880 (125)

Proposed Multiple Reconfigurable Intelligent Surfaces to Mitigate the Inter-User-Interference Problem in NLOS

open access: yesJournal of Communications Software and Systems
Reconfigurable Intelligent Surfaces (RIS) are gaining significant global interest as a potential technology that could enable 6G. An efficient method employs passive element reflectors to extend coverage of the non-line of sight (NLOS) millimeter-wave ...
Bushra Jarjees Qeryaqos   +1 more
doaj   +1 more source

Reconfigurable intelligent surfaces (RIS) using NOMA with thermal energy harvesting

open access: yes
International audienceThe integration of Reconfigurable Intelligent Surfaces (RIS) with Non-Orthogonal Multiple Access (NOMA) and thermal energy harvesting presents a novel approach to enhancing wireless communication networks.
Alhussein, Musaed   +2 more
core   +1 more source

An easily scalable reconfigurable intelligent surface prototype

open access: yes
The aim of this thesis is to design, manufacture, and characterize an improved and scalable reconfigurable intelligent surface module based on previous work.
Ritter, John Richard
core  

The Deep Deterministic Policy Gradient Algorithm Based on RIS Technology in a Coal Mine Tunnel

open access: yesApplied Sciences
Reconfigurable Intelligent Surface (RIS) technology relies on its reconfigurable electromagnetic properties and offers an efficient solution for enhancing signal quality in coal mine communications.
Shuqi Wang   +3 more
doaj   +1 more source

Quantum-Based Simulation for Reconfigurable Intelligent Surface

open access: yes
The reconfigurable intelligent surface (RIS) represents a key element in smart radio environments (SRE), improving telecommunications performance. Although their efficiency, the main challenge lies above the RIS optimization.
Gabriele Gradoni   +4 more
core  

Anomalous and specular reflections of reconfigurable intelligent surfaces: configuration strategies and system performance

open access: yes
International audienceReconfigurable intelligent surfaces (RISs) enable wireless communication in harsh propagation conditions. In fact, when impinging on an RIS, wireless signals can be anomalously reflected, i.e., not obeying Snell’s law, to reach ...
Clemente, Antonio, Merluzzi, Mattia
core   +1 more source

Indoor Propagation Measurements with a Reconfigurable Intelligent Surface at 3.5 GHz [PDF]

open access: yes
This paper describes an investigation of the practical impact of a reconfigurable intelligent surface on indoor radio propagation. The evaluation is based on measurements of the instantaneous channel impulse response (CIR) between a static transmitter ...
Ying, Zhinong   +2 more
core   +1 more source

Joint interference alignment and beyond diagonal RIS design for maximizing SNR in MIMO device-to-device communications

open access: yesScientific Reports
As a novel and flexible branch of RIS architectures, beyond-diagonal reconfigurable intelligent surface (BD-RIS) has been proposed recently to manipulate wireless environment and expand the coverage benefits. One efficient BD-RIS has been realized in the
Bei Ma
doaj   +1 more source

Performance Analysis of RIS-Assisted Communication With Direct Link: A New Copula Application

open access: yesIEEE Open Journal of the Communications Society
Reconfigurable intelligent surface (RIS) has received remarkable attention as a promising solution to enhance the capacity and coverage of wireless cellular networks. In this paper, we evaluate the performance of RIS-assisted communication systems in the
Damoon Shahbaztabar   +3 more
doaj   +1 more source

OPTIMIZATION OF BEYOND-DIAGONAL RECONFIGURABLE INTELLIGENT SURFACES

open access: yes
openLa superficie intelligente riconfigurabile (RIS) è un dispositivo promettente per abilitare e migliorare future comunicazioni radio, grazie al suo potenziale di ingegnerizzare i canali radio.
SCARIN CALLEGARO, MATTIA
core  

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