Robust and secure communications using dynamic rotations reconfigurable intelligent surface
ICT ExpressThis paper investigates the secure transmission problem using a dynamically reconfigurable intelligent surface (RIS). Considering an eavesdropping scenario where a multi-antenna eavesdropper has inadequate channel state information, a resilient ...
Kunyu Li +5 more
doaj +2 more sources
Joint interference alignment and beyond diagonal RIS design for maximizing SNR in MIMO device-to-device communications. [PDF]
Sci RepAs 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
Ma B.
europepmc +2 more sources
On the Ergodic Capacity of Reconfigurable Intelligent Surface (RIS)-Aided MIMO Channels
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022 Accepted by IEEE VTC 2022 ...
Chongjun Ouyang +3 more
openaire +4 more sources
Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks [PDF]
, 2021 peer reviewedThis work discusses the optimal reconfigurable intelligent surface placement in highly-directional millimeter wave links. In particular, we present a novel system model that takes into account the relationship between the transmission beam ...
Boulogeorgos, Alexandros-Apostolos A. +5 more
core +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
Hybrid Active–Passive Reconfigurable Intelligent Surface for Cooperative Transmission Systems
Applied Sciences, 2023 Reconfigurable intelligent surfaces (RISs) are acknowledged as one of the key technologies for the next-generation communication systems due to their low cost, high-energy efficiency, and the ability to intelligently control the wireless propagation ...
Wenhe Wang, Kang Song
doaj +1 more source
Corrections to “WiThRay: A Versatile Ray-Tracing Simulator for Smart Wireless Environments”
IEEE Access, 2023 In the above article [1], the reconfigurable intelligent surface (RIS) response model in (17) needs to be modified as follows:
Hyuckjin Choi +4 more
doaj +1 more source
Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting [PDF]
, 2022 In this paper, we examine the potential for a reconfigurable intelligent surface (RIS) to be powered by energy harvested from information signals. This feature might be key to reap the benefits of RIS technology's lower power consumption compared to ...
Abadal Cavallé, Sergi +12 more
core +1 more source
STAR‐RIS‐assisted scheme for enhancing physical layer security in NOMA systems
IET Communications, 2022 Simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR‐RIS) is capable of achieving full coverage area compared with conventional reflection‐only reconfigurable intelligent surface (RIS).
Shu Xu +4 more
doaj +1 more source
Energy efficiency maximisation for STAR‐RIS assisted full‐duplex communications
IET Communications, 2023 Reconfigurable intelligent surface (RIS) has emerged as a promising technique for enhancing the performance of wireless networks. However, the traditional reflecting‐only RIS requires that the transmitter and receiver ought to be on the same side of the ...
Pengxin Guan +3 more
doaj +1 more source