Results 31 to 40 of about 3,003 (240)
IEEE Open Journal of the Communications Society, 2021 Reconfigurable Intelligent Surface (RIS) has emerged as a promising technology in wireless networks to achieve high spectrum and energy efficiency. RIS typically comprises a large number of low-cost nearly passive elements that can smartly interact with ...
Baoling Sheen +3 more
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Holographic MIMO Communications Exploiting the Orbital Angular Momentum
IEEE Open Journal of the Communications Society, 2023 This study delves into the potential of harnessing the orbital angular momentum (OAM) property of electromagnetic waves in near-field and line-of-sight scenarios by utilizing large intelligent surfaces, in the context of holographic multiple-input ...
Giulia Torcolacci +2 more
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Deployment Strategies for Large Intelligent Surfaces
IEEE Access, 2022 Beyond 5G communication systems must be able to meet the requirements imposed by the ever-increasing demand in capacity, while guaranteeing robustness, reliability, low latency, security, as well as spectral and power efficiencies. Large intelligent surfaces (LIS) as an evolution of massive MIMO have drawn considerable attention among researchers ...
Andreia Pereira +3 more
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Near-Field Beamforming for Large Intelligent Surfaces
2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2022 Publisher Copyright: © 2022 IEEE.
Hu, Sha, Ilter, Mehmet C., Wang, Hao
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Multi-user communications for line-of-sight large intelligent surface systems
EURASIP Journal on Advances in Signal Processing, 2023 In this paper, we propose a new interference-suppression beamformer design and a Direction-of-Arrival (DoA) estimation method for Line-of-Sight (LoS) multi-user communication systems with circular Large Intelligent Surfaces (LISs).
Jiayi Chen
doaj +1 more source
Near- and Far-Field Communications with Large Intelligent Surfaces [PDF]
2020 54th Asilomar Conference on Signals, Systems, and Computers, 2020 This paper studies the uplink spectral efficiency (SE) achieved by two single-antenna user equipments (UEs) communicating with a Large Intelligent Surface (LIS), defined as a planar array consisting of $N$ antennas that each has area $A$. The analysis is carried out with a deterministic line-of-sight propagation channel model that captures key ...
Andrea de Jesus Torres +2 more
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Enhancing physical layer security in large intelligent surface-aided cooperative networks [PDF]
, 2022 Intelligent surfaces have recently been presented as a revolutionary technique and recognized as one of the candidates for beyond fifth-generation wireless networks. This paper investigates the physical layer security of a large intelligent surface (LIS)
Eltawil, Ahmed M. +5 more
core +1 more source
IEEE Transactions on Intelligent Transportation Systems [PDF]
, 2023 There is a need for a large-scale, real world, diverse, and context rich vehicle acceleration catalog that can be used to design, analyze, and compare various intelligent transportation systems. This paper fulfills three primary objectives.
Ahmadian, Mehdi +2 more
core +1 more source
Localization and Discrete Beamforming with a Large Reconfigurable Intelligent Surface
CoRR, 2023 In millimeter-wave (mmWave) cellular systems, reconfigurable intelligent surfaces (RISs) are foreseeably deployed with a large number of reflecting elements to achieve high beamforming gains. The large-sized RIS will make radio links fall in the near-field localization regime with spatial non-stationarity issues.
Baojia Luo +6 more
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OnRMap: An Online Radio Mapping Approach for Large Intelligent Surfaces [PDF]
2023 IEEE International Conference on Communications Workshops (ICC Workshops), 2023 6 pages, 8 figures, conference ...
Herman Lucas dos Santos +4 more
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