Results 31 to 40 of about 5,458,803 (280)
Massive MIMO Communication With Intelligent Reflecting Surface
IEEE Transactions on Wireless Communications, 2023 This paper studies the feasibility of deploying intelligent reflecting surfaces (IRSs) in massive MIMO (multiple-input multiple-output) systems to improve the performance of users in the service dead zone. To reduce the channel training overhead, we advocate a novel protocol for the uplink communication in the IRS-assisted massive MIMO systems.
Zhaorui Wang 0001 +3 more
openaire +2 more sources
Reconfigurable Intelligent Surfaces for Doppler Effect and Multipath Fading Mitigation
Frontiers in Communications and Networks, 2021 Owing to the envisioned new use-cases, such as immersive virtual reality and high-fidelity mobile hologram, and their potential challenging new requirements for future wireless networks, extensive research has already started on 6G and beyond wireless ...
Ertugrul Basar
doaj +1 more source
Multi-user beamforming on intelligent reflecting surface and networks [PDF]
, 2022 Full abstract available: pages i-iii. A new type of retrofitted low-cost material is recently proposed and made it possible to control (or program) part of the wireless channel around us.
Liu, Yihong
core +1 more source
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
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
doaj +1 more source
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
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
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
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