Results 21 to 30 of about 13,960 (190)
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
Intelligent Reflecting Surface Aided Multigroup Multicast MISO Communication Systems [PDF]
, 2020 Intelligent reflecting surface (IRS) has recently been envisioned to offer unprecedented massive multiple-input multiple-output (MIMO)-like gains by deploying large-scale and low-cost passive reflection elements. By adjusting the reflection coefficients,
Nallanathan, Arumugam +4 more
core +2 more sources
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
Spectral and Energy Efficiency of IRS-Assisted MISO Communication with Hardware Impairments [PDF]
, 2020 In this letter, we analyze the spectral and energy efficiency of an intelligent reflecting surface (IRS)-assisted multiple-input single-output (MISO) downlink system with hardware impairments.
Alouini, Mohamed-Slim +4 more
core +4 more sources
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
Downlink and Uplink Intelligent Reflecting Surface Aided Networks: NOMA and OMA
, 2021 Intelligent reflecting surfaces (IRSs) are envisioned to provide reconfigurable wireless environments for future communication networks. In this paper, both downlink and uplink IRS-aided non-orthogonal multiple access (NOMA) and orthogonal multiple ...
Cheng, Yanyu +4 more
core +1 more source
Multi-Beam Multi-Hop Routing for Intelligent Reflecting Surfaces Aided Massive MIMO [PDF]
IEEE Transactions on Wireless Communications, 2021 Intelligent reflecting surface (IRS) is envisioned to play a significant role in future wireless communication systems as an effective means of reconfiguring the radio signal propagation environment.
Weidong Mei, Rui Zhang
semanticscholar +1 more source
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 +1 more source