Results 21 to 30 of about 5,333,513 (244)
A filtering reconfigurable intelligent surface for interference-free wireless communications [PDF]
Nature CommunicationsThe powerful capability of reconfigurable intelligent surfaces (RISs) in tailoring electromagnetic waves and fields has put them under the spotlight in wireless communications.
Jing Cheng Liang +9 more
doaj +2 more sources
Reconfigurable intelligent surface-empowered MIMO systems. [PDF]
Natl Sci Rev, 2023 <p>A brief overview is presented in this perspective, considering the application of reconfigurable intelligent surfaces for future multiple-input multiple-output (MIMO) systems.</p ...
Basar E.
europepmc +2 more sources
Physical layer security of reconfigurable intelligent surface empowered wireless network with cooperative jammer [PDF]
, 2022 This paper evaluates the physical layer security performance of a reconfigurable intelligent surface (RIS) enabled wireless network in the presence of a passive eavesdropper.
Olakanmi Oladayo Olufemi +5 more
core +1 more source
Near Field Optimization Algorithm for Reconfigurable Intelligent Surface [PDF]
, 2023 Reconfigurable intelligent surface (RIS) is a type of wireless communication technology that uses a reconfigurable surface, such as a wall or building that is able to adjust its properties by an integrated optimization algorithm in order to optimize the ...
Moglie, Franco +3 more
core +2 more sources
Enhancing active reconfigurable intelligent surface
Intelligent and Converged Networks, 2022 A Reconfigurable Intelligent Surface (RIS) panel comprises many independent Reflective Elements (REs). One possible way to implement an RIS is to use a binary passive load impedance connected to an antenna element to achieve the modulation of reflected ...
Muhammad I. Khalil
doaj +1 more source
Trusted Reconfigurable Intelligent Surface for Multi-User Quantum Key Distribution [PDF]
, 2023 peer reviewedWe consider a multi-user quantum key distribution (QKD) system based on free-space optics (FSO) in terrestrial environment. Due to obstacles in the signal path, FSO-QKD is heavily affected by decoherence and other harmful effects.
Steven Kisseleff +3 more
core +1 more source
Mechatronic Reconfigurable Intelligent‐Surface‐Driven Indoor Fifth‐Generation Wireless Communication
Advanced Intelligent Systems, 2022 Reconfigurable intelligent surface‐assisted wireless networks have been proposed to overcome the current technical issues in fifth‐generation (5G) wireless communication systems.
Heijun Jeong +3 more
doaj +1 more source
Frontiers in Communications and Networks, 2021 As data rates demands are exploding, 5G will soon rely on mmWaves that offer much higher bandwidths. Yet at these frequencies, attenuation and diffraction of waves require point to point communications with beamforming base stations that are complex and ...
Vladislav Popov +7 more
doaj +1 more source
A Reconfigurable Intelligent Surface at mmWave Based on a Binary Phase Tunable Metasurface
IEEE Open Journal of the Communications Society, 2021 Originally introduced in the early 2010’s, the idea of smart environments through reconfigurable intelligent surfaces (RIS) controlling the reflections of the electromagnetic waves has attracted much attention in recent years in preparation for ...
Jean-Baptiste Gros +4 more
doaj +1 more source
IET Communications, 2022 Recently, the physical limitation of range‐domain security guarantee for directional modulation with frequency diverse array was disclosed in Ding et al. (IEEE Access 8, 63302–63309 (2020)).
Jiangong Chen +4 more
doaj +1 more source