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Intelligent Reflecting Surfaces Beamforming Optimization with Statistical Channel Knowledge [PDF]

open access: yesSensors, 2022
Intelligent Reflecting Surfaces (IRSs) are emerging as an effective technology capable of improving the spectral and energy efficiency of future wireless networks.
Victoria Dala Pegorara Souto   +3 more
doaj   +2 more sources

Intelligent Reflecting Surfaces Enhanced Mobile Edge Computing: Minimizing the Maximum Computational Time [PDF]

open access: yesSensors, 2022
Intelligent reflecting surfaces (IRS) and mobile edge computing (MEC) have recently attracted significant attention in academia and industry. Without consuming any external energy, IRS can extend wireless coverage by smartly reconfiguring the phase shift
Mubashar Sarfraz   +7 more
doaj   +2 more sources

Multi-Intelligent Reflecting Surfaces and Artificial Noise-Assisted Cell-Free Massive MIMO Against Simultaneous Jamming and Eavesdropping [PDF]

open access: yesSensors
In a cell-free massive multiple-input multiple-output (MIMO) system without cells, it is assumed that there are smart jammers and disrupters (SJDs) that attempt to interfere with and eavesdrop on the downlink communications of legitimate users.
Huazhi Hu   +5 more
doaj   +2 more sources

Rate splitting with semantics as a generalized multi-access framework for intelligent reflecting surfaces [PDF]

open access: yesScientific Reports
The rapid advancement of modern communication technologies necessitates the development of generalized multi-access frameworks and the continuous implementation of rate splitting, augmented with semantic awareness.
Senthil Kumar Jagatheesaperumal   +4 more
doaj   +2 more sources

The effect of intelligent reflecting surfaces on spectral efficiency in 6G wireless systems [PDF]

open access: yesScientific Reports
Intelligent Reflecting Surfaces (IRSs), comprised of numerous reflecting elements, offer a promising solution for enhancing wireless communication. By manipulating the wireless propagation environment, IRSs can mitigate the effects of non-line-of-sight ...
Hanaa H. Qamar   +2 more
doaj   +2 more sources

Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication

open access: yesSensors, 2023
In this paper, we propose a reconfigurable intelligent surface (RIS) that can dynamically switch the transmission and reflection phase of incident electromagnetic waves in real time to realize the dual-beam or quad-beam and convert the polarization of ...
Khushboo Singh   +5 more
doaj   +1 more source

Joint Symbol-Level Precoding and Reflecting Designs for IRS-Enhanced MU-MISO Systems [PDF]

open access: yes, 2021
Intelligent reflecting surfaces (IRSs) have emerged as a revolutionary solution to enhance wireless communications by changing propagation environment in a cost-effective and hardware-efficient fashion.
Li, M, Liu, Q, Liu, R, Swindlehurst, AL
core   +2 more sources

Revolutionizing Optical Wireless Communications via Smart Optics

open access: yesIEEE 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

Intelligent Reflecting Surfaces for Underwater Visible Light Communications

open access: yesIEEE Photonics Journal, 2023
Intelligent reflecting surfaces (IRSs) offer paradigm shift towards enhancing the capabilities of wireless communications. The use of this emerging technology in the realm of underwater wireless systems is a promising solution to overcome the limitations
Yalcin Ata   +4 more
doaj   +1 more source

Semi-Blind Channel Estimation for Intelligent Reflecting Surfaces in Massive MIMO Systems

open access: yesIEEE Access, 2022
Intelligent reflecting surface (IRS) is considered as a promising technology for enhancing the transmission rate in cellular networks. Such improvement is attributed to considering a large IRS with high number of passive reflecting elements, optimized to
Ahmed S. Alwakeel, Ahmed Elzanaty
doaj   +1 more source

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