Results 21 to 30 of about 2,026 (251)
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
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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
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Reconfigurable Intelligent Surface Aided NOMA Networks [PDF]
IEEE Journal on Selected Areas in Communications, 2020 Reconfigurable intelligent surfaces (RISs) constitute a promising performance enhancement for next-generation (NG) wireless networks in terms of enhancing both their spectrum efficiency (SE) and energy efficiency (EE). We conceive a system for serving paired power-domain non-orthogonal multiple access (NOMA) users by designing the passive beamforming ...
Tianwei Hou +5 more
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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
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Enhancing active reconfigurable intelligent surface
Intelligent and Converged Networks, 2022 <p> 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 radio waves.
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Control Plane for Reconfigurable Intelligent Surfaces [PDF]
IEEE Communications Standards MagazinePublished in Communication Standards ...
Fabio Saggese +4 more
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Smart radio environments empowered by reconfigurable AI meta-surfaces: an idea whose time has come
EURASIP Journal on Wireless Communications and Networking, 2019 Future wireless networks are expected to constitute a distributed intelligent wireless communications, sensing, and computing platform, which will have the challenging requirement of interconnecting the physical and digital worlds in a seamless and ...
Marco Di Renzo +13 more
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Paladyn, 2023 With proper tuning in the phase shift of reconfigurable intelligent surfaces (RISs) or intelligent reflecting surfaces (IRSs), which consist of huge number of passive reflecting elements, are the most promising and transforming technology to reconfigure ...
Singh Ashish K. +4 more
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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 0004 +7 more
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Enabling NOMA in Backscatter Reconfigurable Intelligent Surfaces-Aided Systems
IEEE Access, 2021 One of the key enablers of future wireless communications is constituted by massive users can access the core network in wireless systems simultaneously, which can improve the spectral efficiency.
Chi-Bao Le +5 more
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