Reconfigurable Intelligent Surface (RIS)-Assisted Non-Terrestrial Network (NTN)-Based 6G Communications: A Contemporary Survey. [PDF]
Sensors (Basel)This article examines the transformative potential of integrating reconfigurable intelligent surfaces (RISs) into sixth-generation (6G) wireless non-terrestrial networks (NTNs). The focus is on the RIS’s capability to address diverse user requirements, including secure data transmission, power efficiency, extended coverage, and enhanced data rates. The
Worka CE +4 more
europepmc +6 more sources
Multi-user frequency selective beam steering by reconfigurable intelligent surfaces in the Ka-band [PDF]
Scientific ReportsReconfigurable intelligent surfaces (RIS) have been proposed to extend the coverage of wireless communication signals at mm-wave frequencies. Here, we designed and fabricated a reconfigurable intelligent surface (RIS) for multi-user frequency selective ...
Lukas Mueller +6 more
doaj +2 more sources
Joint interference alignment and beyond diagonal RIS design for maximizing SNR in MIMO device-to-device communications [PDF]
Scientific ReportsAs 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 +2 more sources
Reconfigurable intelligent surface (RIS): Eigenvalue Decomposition-Based Separate Channel Estimation [PDF]
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2021 Reconfigurable intelligent surface (RIS) has recently drawn significant attention in wireless communication technologies. However, identifying, modeling, and estimating the RIS channel in multiple-input multiple-output (MIMO) systems are considered challenging in recent studies.
Zegrar, Salah Eddine +2 more
openaire +3 more sources
Reconfigurable Intelligent Surface (RIS) Assisted Wireless Coverage Extension: RIS Orientation and Location Optimization [PDF]
IEEE Communications Letters, 2021 Recently, reconfigurable intelligent surfaces (RIS) have attracted a lot of attention due to their capability of extending cell coverage by reflecting signals toward the receiver. In this letter, we analyze the coverage of a downlink RIS-assisted network with one base station (BS) and one user equipment (UE).
Shuhao Zeng +4 more
openaire +2 more sources
Reconfigurable Intelligent Surface (RIS)-Enhanced Two-Way OFDM Communications [PDF]
IEEE Transactions on Vehicular Technology, 2020 Submitted to IEEE ...
Chandan Pradhan +5 more
openaire +2 more sources
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
Reconfigurable Intelligent Surface-Aided Multi-User Networks: Interplay Between NOMA and RIS
IEEE Wireless Communications, 2022 14 pages, 5 figures, 1 ...
Liu, Yuanwei +5 more
openaire +2 more sources
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