Results 51 to 60 of about 15,205 (252)
A survey on reconfigurable intelligent surfaces: Wireless communication perspective
IET Communications, 2023 Using reconfigurable intelligent surfaces (RISs) to improve the coverage and the data rate of future wireless networks is a viable option. These surfaces are constituted of a significant number of passive and nearly passive components that interact with ...
Saber Hassouna +9 more
doaj +1 more source
QRIS: A QuaDRiGa-Based Simulation Platform for Reconfigurable Intelligent Surfaces
IEEE Access, 2023 Reconfigurable Intelligent Surfaces (RISs) are a promising way to improve the performance of wireless networks. However, despite the high interest in the research community, no flexible enough simulation platform allows for studying the performance of ...
Ilya Burtakov +3 more
doaj +1 more source
IEEE Access, 2021 Wireless energy transmission and harvesting techniques have recently emerged as attractive solutions to realize wireless powered networks. By eliminating fundamental power constraints arising from the use of conventionally battery sources, wireless modes
Akaa Agbaeze Eteng +3 more
doaj +1 more source
Reconfigurable Intelligent Surface-Enabled Downlink NOMA
IEEE Transactions on Wireless CommunicationsComment: 11 pages, 13 figures, transaction ...
Ali Tugberk Dogukan +2 more
openaire +3 more sources
IEEE Access, 2023 The Reconfigurable Intelligent Surface (RIS) has recently gained traction as a promising, enabling technology for future sixth-generation (6G) mobile networks. Thereby, this paper presents a comprehensive statistical, secrecy, and performance analysis of
Murilo Alencar Alves Junior +4 more
doaj +1 more source
An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells
Advanced Functional Materials, EarlyView.Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio +8 more
wiley +1 more source
IEEE Open Journal of the Communications Society, 2023 The sparsity of millimeter wave (mmWave) channels in angular and temporal domains has been exploited for channel estimation, while the associated channel parameters can be utilized for localization.
Kunlun Li +2 more
doaj +1 more source
Massive MIMO is a Reality -- What is Next? Five Promising Research Directions for Antenna Arrays
, 2019 Massive MIMO (multiple-input multiple-output) is no longer a "wild" or "promising" concept for future cellular networks - in 2018 it became a reality.
Björnson, Emil +4 more
core +1 more source
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
A Survey on Federated Learning in RIS, STAR-RIS, and BD-RIS-Assisted Wireless Networks
IEEE Open Journal of the Communications SocietyThe advent of sixth-generation (6G) wireless networks has spurred growing interest in technologies capable of simultaneously meeting stringent requirements for capacity, latency, energy efficiency (EE), and security.
Isabel Francine Mendes +6 more
doaj +1 more source