Results 1 to 10 of about 213 (67)
Sensors, 2022 The existing sub-6 GHz band is insufficient to support the bandwidth requirement of emerging data-rate-hungry applications and Internet of Things devices, requiring ultrareliable low latency communication (URLLC), thus making the migration to millimeter ...
Fred Chimzi Okogbaa +6 more
doaj +3 more sources
Applied Sciences, 2023 This paper proposes an intelligent reflecting surface (IRS)-assisted energy efficiency optimization algorithm to address the problem of energy efficiency (EE) degradation in high-speed rail communication systems caused by line-of-sight link blockages ...
Cuiran Li +3 more
doaj +3 more sources
Intelligent Reflecting Surfaces (IRS)-Enhanced Cooperative NOMA: A Contemporary Review
IEEE AccessThe integration of intelligent reflecting surfaces (IRS) into cooperative non-orthogonal multiple access (NOMA) systems revolutionizes wireless networks by enhancing signal strength, mitigating interference, and optimizing spectral efficiency.
Sanjeev Sharma +4 more
doaj +3 more sources
Sum Rate Optimization of IRS-Aided Uplink Muliantenna NOMA with Practical Reflection
Sensors, 2022 Recently, intelligent reflecting surfaces (IRSs) have drawn huge attention as a promising solution for 6G networks to enhance diverse performance metrics in a cost-effective way. For massive connectivity toward a higher spectral efficiency, we address an
Jihyun Choi +3 more
doaj +1 more source
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
doaj +1 more source
IEEE Access, 2020 In this paper, we propose intelligent reflecting surfaces (IRS) assisted secure wireless communications with multi-input and multi-output antennas (IRS-MIMOME).
Weiheng Jiang +4 more
doaj +1 more source
Coverage analysis of intelligent reflecting surface systems in Rayleigh fading
Electronics Letters, 2022 Intelligent reflecting surfaces have attracted much attention recently as they can manipulate the wireless channel. However, the typical analysis of the downlink system considers the BS‐IRS‐UE link only. Apart from the BS‐IRS‐UE link, the BS‐UE link also
R. Dahlia Devapriya +2 more
doaj +1 more source
Practical Evaluation Method of Large Size IRS: Synthesis of Reflection Pattern of Sub-IRS
IEEE Access, 2023 Intelligent reflecting surfaces (IRSs) have been attracting attention as a solution to coverage hole problems in millimeter-wave communication areas and are considered one of the key technologies of next-generation mobile communication systems.
Hiromi Matsuno +3 more
doaj +1 more source
IEEE Open Journal of the Communications Society, 2021 Intelligent Reflecting Surfaces (IRSs) have recently emerged as a promising solution for realizing the smart radio environment concept by leveraging the characteristics of metamaterials and large antenna arrays.
Mohd Hamza Naim Shaikh +3 more
doaj +1 more source
Secrecy Capacity Enhancement in Active IRS-Assisted UAV Communication System
Sensors, 2023 As a new technology for reconstructing communication environments, intelligent reflecting surfaces (IRSs) can be applied to UAV communication systems. However, some challenges exist in IRS-assisted UAV communication system design, such as physical layer ...
Jiansong Miao +4 more
doaj +1 more source