Results 31 to 40 of about 7,039 (276)
Feasibility of a Plasma-Based Intelligent Reflective Surface
IEEE Access, 2022 Gaseous Plasma Antennas are devices in which an ionized gas (i.e., plasma) is exploited to transmit and receive Electromagnetic waves. Their main advantage over metallic systems is the possibility to reconfigure the antenna performance (e.g., radiation pattern) by electronically varying the plasma parameters (e.g., density).
MIRKO MAGAROTTO +3 more
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, 2023 Reflecting intelligent surfaces (RIS) has gained significant attention due to its high energy and spectral efficiency in next-generation wireless networks.
Khan, Wali Ullah +14 more
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User Localization via Multiple Intelligent Reflecting Surfaces for LOS-Dominated Channels
IEEE Access, 2023 Intelligent reflecting surfaces (IRSs) in the millimeter-wave (mmWave) and terahertz (THz) frequency bands offer precise wireless localization capabilities for future networks.
Mojtaba Ghermezcheshmeh, Nikola Zlatanov
doaj +1 more source
SWIPT With Intelligent Reflecting Surfaces Under Spatial Correlation [PDF]
IEEE Wireless Communications Letters, 2021 Intelligent reflecting surfaces (IRSs) can be beneficial to both information and energy transfer, due to the gains achieved by their multiple elements. In this work, we deal with the impact of spatial correlation between the IRS elements, in the context of simultaneous wireless information and power transfer.
Constantinos Psomas, Ioannis Krikidis
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STAR-RISs: Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surfaces
, 2021 In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous transmission ...
Liu, Yuanwei +3 more
core +1 more source
Reconfigurable Intelligent Surfaces: Principles and Opportunities
, 2021 International audienceReconfigurable intelligent surfaces (RISs), also known as intelligent reflecting surfaces (IRSs), or large intelligent surfaces (LISs) 1 , have received significant attention for their potential to enhance the capacity and coverage ...
Liu, Yuanwei +7 more
core +1 more source
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
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Intelligent Reflecting Surface-Aided Wireless Communications: A Tutorial [PDF]
IEEE Transactions on Communications, 2021 Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks. By smartly tuning the signal reflection via a large number of low-cost passive reflecting elements, IRS is capable of dynamically altering wireless channels to enhance the communication performance.
Qingqing Wu 0001 +4 more
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Security Hardening of Intelligent Reflecting Surfaces Against Adversarial Machine Learning Attacks
IEEE Access, 2022 Next-generation communication networks, also known as NextG or 5G and beyond, are the future data transmission systems that aim to connect a large amount of Internet of Things (IoT) devices, systems, applications, and consumers at high-speed data ...
Ferhat Ozgur Catak +4 more
doaj +1 more source
Alternating Beamforming With Intelligent Reflecting Surface Element Allocation [PDF]
IEEE Wireless Communications Letters, 2021 Intelligent reflecting surface (IRS) has become a promising technology to aid next generation wireless communication systems. In this paper, we develop an alternating beamforming technique with a novel concept of IRS element allocation for multiple-input multiple-output systems when a base station supports multiple single antenna users aided with a ...
Hyesang Cho, Junil Choi
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