Results 21 to 30 of about 14,064 (257)
IET Communications, 2021 An intelligent‐reflecting‐surface aided multigroup multicast communication system is investigated in this paper. We develop energy‐efficient designs for both the precoding matrix at the base station and passive reflecting beamforming at intelligent ...
Junzhi Wang +2 more
doaj +1 more source
Inkjet printed intelligent reflecting surface for indoor applications
Electronics Letters, 2023 A passive, low‐cost, paper‐based intelligent reflecting surface (IRS) is designed to reflect a signal in a desired direction to overcome non‐line‐of‐sight scenarios in indoor environments.
Kairi Takimoto +9 more
doaj +1 more source
Intelligent Reflecting Surface-Assisted Dual-Function Radar-Communication System
IEEE Access, 2023 We consider the design of a Dual-Function Radar-Communication (DFRC) system, aided by an Intelligent Reflecting Surface (IRS). The radar precoding matrix and IRS parameters are optimized to maximize the weighted sum of the signal-to-noise ratio (SNR) at ...
Yi-Kai Li, Athina P. Petropulu
doaj +1 more source
Intelligent Reflecting Surface in 6G Vehicular Communications: A Survey
IEEE Open Journal of Vehicular Technology, 2022 The applications of Intelligent Transportation System (ITS) and autonomous driving in the 6G era heavily rely on the massive information exchange of ultra-wide bandwidth, high reliability, and low latency to guarantee the safety and experience.
Yishi Zhu, Bomin Mao, Nei Kato
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Plasma-Based Intelligent Reflecting Surface for Beam-Steering and Polarization Conversion
IEEE Access, 2023 The design of a reflective surface operated in the GHz range is proposed to enable beam-steering and polarization conversion simultaneously. The concept presented in this work relies on plasma-based Intelligent Reflecting Surfaces (IRS) in which the ...
Mirko Magarotto +4 more
doaj +1 more source
Design of Intelligent Reflecting Surface (IRS)-Boosted Ambient Backscatter Systems
IEEE Access, 2022 Passive technologies like ambient backscatter communication (AmBC) and intelligent reflecting surface (IRS) hold enormous potential for ubiquitous connectivity of Internet of Things (IoT) devices in future wireless networks.
Sahar Idrees +3 more
doaj +1 more source
Federated Learning via Intelligent Reflecting Surface [PDF]
IEEE Transactions on Wireless Communications, 2022 Over-the-air computation (AirComp) based federated learning (FL) is capable of achieving fast model aggregation by exploiting the waveform superposition property of multiple access channels. However, the model aggregation performance is severely limited by the unfavorable wireless propagation channels.
Zhibin Wang 0003 +6 more
openaire +3 more sources
Covert Transmission Assisted by Intelligent Reflecting Surface [PDF]
IEEE Transactions on Communications, 2021 Covert transmission is studied for an intelligent reflecting surface (IRS) aided communication system, where Alice aims to transmit messages to Bob without being detected by the warden Willie. Specifically, an IRS is used to increase the data rate at Bob under a covert constraint.
Jiangbo Si +6 more
openaire +2 more sources
Detect Pilot Spoofing Attack for Intelligent Reflecting Surface Assisted Systems
IEEE Access, 2021 Pilot spoofing attack (PSA) is a kind of active eavesdropping, which launches the identical training sequence to manipulate the channel estimation outcome during the pilot training phase.
Xiaoming Liu +3 more
doaj +1 more source
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
openaire +4 more sources