Results 11 to 20 of about 405,425 (327)
Multicell MIMO Communications Relying on Intelligent Reflecting Surfaces [PDF]
IEEE Transactions on Wireless Communications, 2020 Intelligent reflecting surfaces (IRSs) constitute a disruptive wireless communication technique capable of creating a controllable propagation environment.
Elkashlan, Maged +6 more
core +7 more sources
Intelligent reflecting surface‐aided network planning
IET Communications, 2022 Intelligent reflecting surface (IRS) composed of a large number of low‐cost, phase‐adjustable passive reflecting elements, which is an attractive solution of overcoming the signal attenuation and interference.
Fan‐Hsun Tseng +3 more
doaj +2 more sources
Wireless Network Coding With Intelligent Reflecting Surfaces [PDF]
IEEE Communications Letters, 2021 Conventional wireless techniques are becoming inadequate for beyond fifth-generation (5G) networks due to latency and bandwidth considerations. To improve the error performance and throughput of wireless communication systems, we propose physical layer network coding (PNC) in an intelligent reflecting surface (IRS)-assisted environment.
Amanat Kafizov +3 more
openaire +3 more sources
Intelligent Reflecting Surface Aided Vehicular Communications [PDF]
2020 IEEE Globecom Workshops (GC Wkshps, 2020 We investigate the use of an intelligent reflecting surface (IRS) in a millimeter-wave (mmWave) vehicular communication network. An intelligent reflecting surface consists of passive elements, which can reflect the incoming signals with adjustable phase shifts. By properly tuning the phase shifts we can improve link performance.
Dampahalage, D. (Dilin) +3 more
openaire +3 more sources
Intelligent Reflecting Surface Enhanced Millimeter-Wave NOMA Systems [PDF]
IEEE Communications Letters, 2020 In this paper, a downlink intelligent reflecting surface (IRS) enhanced millimeter-wave (mmWave) non-orthogonal multiple access (NOMA) system is considered. A joint optimization problem over active beamforming, passive beamforming and power allocation is formulated. Due to the highly coupled variables, the formulated optimization problem is non-convex.
Jiakuo Zuo +3 more
openaire +5 more sources
Optimal design for the artificial‐noise‐aided IRS‐MIMO‐OFDM secure communications
IET Communications, 2022 This paper discusses an artificial noise‐aided intelligent reflecting surface‐MIMO–OFDM system physical layer secure communication, in which two cases for the intelligent reflecting surface reflection coefficient models are considered separately, that is
Jingya Ren +4 more
doaj +1 more source
Intelligent reflecting surface-aided MIMO secrecy rate maximization
ICT Express, 2022 This paper considers the intelligent reflecting surface-aided MIMO secrecy rate maximization. We apply the alternating optimization to maximize the secrecy rate of the MIMO wiretap channels. We first provide the closed-form solution to each subproblem of
Minsik Kim, Daeyoung Park
doaj +1 more source
Joint Symbol-Level Precoding and Reflecting Designs for IRS-Enhanced MU-MISO Systems [PDF]
, 2021 Intelligent reflecting surfaces (IRSs) have emerged as a revolutionary solution to enhance wireless communications by changing propagation environment in a cost-effective and hardware-efficient fashion.
Li, M, Liu, Q, Liu, R, Swindlehurst, AL
core +2 more sources
Intelligent Reflecting Surface Enhanced Wireless Network via Joint Active and Passive Beamforming [PDF]
IEEE Transactions on Wireless Communications, 2018 Intelligent reflecting surface (IRS) is a revolutionary and transformative technology for achieving spectrum and energy efficient wireless communication cost-effectively in the future.
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Covert Federated Learning via Intelligent Reflecting Surfaces
IEEE Transactions on Communications, 2023 Over-the-air computation (OAC) is a promising technology that can achieve rapid model aggregation by utilizing the wireless waveform superposition feature to harness the interference of multiple-access channel for wireless federated learning (FL). However, OAC-based aggregation for OAC faces critical security challenges due to unfavorable and wireless ...
Jie Zheng +5 more
openaire +2 more sources