Results 31 to 40 of about 15,205 (252)
Reconfigurable Intelligent Surfaces: Channel Characterization and Modeling
Proceedings of the IEEE, 2022 Reconfigurable intelligent surfaces (RISs) are two dimensional (2D) metasurfaces which can intelligently manipulate electromagnetic waves by low-cost near passive reflecting elements. RIS is viewed as a potential key technology for the sixth generation (6G) wireless communication systems mainly due to its advantages in tuning wireless signals, thus ...
Jie Huang +7 more
openaire +2 more sources
Active Reconfigurable Intelligent Surface-Aided Wireless Communications
IEEE Transactions on Wireless Communications, 2021 Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless environment in a controllable way. To compensate for the double-fading attenuation in the RIS-aided link, a large number of passive reflecting elements (REs) are conventionally deployed at the RIS, resulting in large surface size and considerable circuit power ...
Ruizhe Long +3 more
openaire +4 more sources
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
Intelligent Metasurfaces with Continuously Tunable Local Surface Impedance for Multiple Reconfigurable Functions [PDF]
, 2019 Electromagnetic metasurfaces can be characterized as intelligent if they are able to perform multiple tunable functions, with the desired response being controlled by a computer influencing the individual electromagnetic properties of each metasurface ...
Kafesaki, Maria +9 more
core +4 more sources
A new meta-module for efficient reconfiguration of hinged-units modular robots [PDF]
, 2016 We present a robust and compact meta-module for edge-hinged modular robot units such as M-TRAN, SuperBot, SMORES, UBot, PolyBot and CKBot, as well as for central-point-hinged ones such as Molecubes and Roombots.
Parada, Irene +2 more
core +1 more source
Survey on reconfigurable intelligent surfaces below 10 GHz
EURASIP Journal on Wireless Communications and Networking, 2021 Reconfigurable intelligent surface (RIS) is a programmable structure that can be used to control the propagation of electromagnetic waves by changing the electric and magnetic properties of the surface.
Visa Tapio +4 more
doaj +1 more source
Revolutionizing Optical Wireless Communications via Smart Optics
IEEE Open Journal of the Communications Society, 2022 The heterogeneity of optical wireless networks (OWNs) has expanded over decades in terms of services, node densities, mobility requirements, bandwidth needs, responsiveness, and physical device profile.
Amr M. Abdelhady +3 more
doaj +1 more source
Universal Reconfiguration of Facet-Connected Modular Robots by Pivots: The O(1) Musketeers [PDF]
, 2019 We present the first universal reconfiguration algorithm for transforming a modular robot between any two facet-connected square-grid configurations using pivot moves.
Akitaya, Hugo A. +10 more
core +2 more sources
Wireless Energy Harvesting for Autonomous Reconfigurable Intelligent Surfaces
IEEE Transactions on Green Communications and Networking, 2023 This work was supported by the Luxembourg National Research Fund (FNR) under the CORE project RISOTTI (ref. 14773976), the European Commission’s Horizon 2020 research and innovation programme (ARIADNE) under grant agreement No. 871464, and the Digital Futures center.
Konstantinos Ntontin +9 more
openaire +4 more sources
Over‐the‐air equalization with reconfigurable intelligent surfaces
IET Communications, 2022 Reconfigurable intelligent surface (RIS)‐empowered communications is on the rise and is a promising technology envisioned to aid in 6G and beyond wireless communication networks.
Emre Arslan +3 more
doaj +1 more source