Results 11 to 20 of about 13,960 (190)
Deep Denoising Neural Network Assisted Compressive Channel Estimation for mmWave Intelligent Reflecting Surfaces [PDF]
IEEE Transactions on Vehicular Technology, 2020 Integrating large intelligent reflecting surfaces (IRS) into millimeter-wave (mmWave) massive multi-input-multi-ouput (MIMO) has been a promising approach for improved coverage and throughput.
Shicong Liu +4 more
semanticscholar +3 more sources
IEEE Open Journal of the Communications Society, 2020 The concept of reconfiguring wireless propagation environments using intelligent reflecting surfaces (IRS)s has recently emerged, where an IRS comprises of a large number of passive reflecting elements that can smartly reflect the impinging ...
Qurrat-Ul-Ain Nadeem +5 more
doaj +3 more sources
Secure Visible Light Communications via Intelligent Reflecting Surfaces [PDF]
ICC 2021 - IEEE International Conference on Communications, 2021 Intelligent reflecting surfaces (IRS) can improve the physical layer security (PLS) by providing a controllable wireless environment. In this paper, we propose a novel PLS technique with the help of IRS implemented by an intelligent mirror array for the ...
L. Qian +3 more
semanticscholar +1 more source
Physics-Based Modeling and Scalable Optimization of Large Intelligent Reflecting Surfaces [PDF]
IEEE Transactions on Communications, 2020 Intelligent reflecting surfaces (IRSs) have the potential to transform wireless communication channels into smart reconfigurable propagation environments.
M. Najafi +3 more
semanticscholar +1 more source
Sum Rate Optimization of IRS-Aided Uplink Muliantenna NOMA with Practical Reflection
Sensors, 2022 Recently, intelligent reflecting surfaces (IRSs) have drawn huge attention as a promising solution for 6G networks to enhance diverse performance metrics in a cost-effective way. For massive connectivity toward a higher spectral efficiency, we address an
Jihyun Choi +3 more
doaj +1 more source
IRS-Aided Radar: Enhanced Target Parameter Estimation via Intelligent Reflecting Surfaces [PDF]
International Conference on Security and Management, 2021 The intelligent reflecting surface (IRS) technology has recently attracted a lot of interest in wireless communications research. An IRS consists of passive reflective elements capable of tuning the phase, amplitude, frequency, and polarization of ...
Zahra Esmaeilbeig +2 more
semanticscholar +1 more source
The Rise of Intelligent Reflecting Surfaces in Integrated Sensing and Communications Paradigms [PDF]
IEEE Network, 2022 The intelligent reflecting surface (IRS) alters the behavior of wireless media and, consequently, has potential to improve the performance and reliability of wireless systems such as communications and radar remote sensing.
Ahmet M. Elbir +3 more
semanticscholar +1 more source
Secrecy Energy Efficiency for Distributed-IRSs Assisted Uplink Networks [PDF]
, 2023 In this correspondence, we aim at achieving the energy-efficient secrecy transmission for an uplink network assisted by distributed intelligent reflecting surfaces (D-IRSs). The secrecy energy efficiency (SEE) maximization problem is investigated through
Bao, J +5 more
core +1 more source
Paladyn, 2023 With proper tuning in the phase shift of reconfigurable intelligent surfaces (RISs) or intelligent reflecting surfaces (IRSs), which consist of huge number of passive reflecting elements, are the most promising and transforming technology to reconfigure ...
Singh Ashish K. +4 more
doaj +1 more source
An Optimal Channel Estimation Scheme for Intelligent Reflecting Surfaces Based on a Minimum Variance Unbiased Estimator [PDF]
IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019 In a wireless system with Intelligent Reflective Surfaces (IRS) containing many passive elements, we consider the problem of channel estimation. All the links from the transmitter to the receiver via each IRS elements (or groups) are estimated.
T. L. Jensen, E. Carvalho
semanticscholar +1 more source