Results 71 to 80 of about 405,425 (327)
Channel Estimation for Intelligent Reflecting Surface Assisted MIMO Systems: A Tensor Modeling Approach [PDF]
IEEE Journal on Selected Topics in Signal Processing, 2020 Intelligent reflecting surface (IRS) is an emerging technology for future wireless communications including 5G and especially 6 G. It consists of a large 2D array of (semi-)passive scattering elements that control the electromagnetic properties of radio ...
Gilderlan T. de Araújo +2 more
semanticscholar +1 more source
Line-of-Sight MIMO via Intelligent Reflecting Surface
IEEE Transactions on Wireless Communications, 2023 This paper deals with line-of-sight (LOS) MIMO communication via an intelligent reflecting surface (IRS). It is shown that the number of spatial degrees of freedom (DOF) afforded by this setting grows in proportion with the IRS aperture, as opposed to being dictated by the transmit and receive apertures; this buttresses the interest in IRS deployments ...
Heedong Do, Namyoon Lee, Angel Lozano
openaire +2 more sources
Engineering Proceedings, 2023 Future wireless networks are characterized as having a combination of various technologies such as artificial intelligence, machine learning, combined communication, sensing and others.
Aisha Danish, Naureen Farhan
doaj +1 more source
Ergodic performance analysis of intelligent reflecting surface network with phase errors
ICT Express, 2023 This paper investigates the performance of using multiple intelligent reflecting surface (IRS)-assisted communication as compared to the hybrid approach. We demonstrate that for practical scenarios with a limited amount of radiated power, the performance
Fazal-E-Asim +3 more
doaj +1 more source
, 2021 Intelligent reflecting surface (IRS) is a promising new paradigm to achieve high spectral and energy efficiency for future wireless networks by reconfiguring the wireless signal propagation via passive reflection.
Wu, Qingqing +3 more
core
PPO-based deployment and phase control for movable intelligent reflecting surface
Journal of Cloud Computing: Advances, Systems and Applications, 2023 Intelligent reflecting surface (IRS) stands as a promising technology to revolutionize wireless communication by manipulating incident signal amplitudes and phases to enhance system performance. While existing research primarily centers around optimizing
Yikun Zhao +4 more
doaj +1 more source
Intelligent-Reflecting-Surface-Assisted Multicasting with Joint Beamforming and Phase Adjustment
Applied Sciences, 2022 In this paper, a set of transmission schemes are proposed for the delivery of multicast (MC) signals, in which an intelligent reflecting surface (IRS) assists the transmission from an access point (AP) to a set of multicast users.
Duckdong Hwang +3 more
doaj +1 more source
Resource allocation algorithm for intelligent reflecting surface-aided SWIPT networks
Tongxin xuebao, 2022 In order to achieve the efficient interconnection of everything, under the limitations of terminal devices’ batteries and network coverage, the intelligent reflecting surface (IRS) technology was introduced to build a new IRS-aided simultaneous wireless ...
Wei SUN, Qingyang SONG, Lei GUO
doaj +2 more sources
Joint Active and Passive Beamforming Optimization for Intelligent Reflecting Surface Assisted SWIPT Under QoS Constraints [PDF]
IEEE Journal on Selected Areas in Communications, 2019 Intelligent reflecting surface (IRS) is a new and revolutionizing technology for achieving spectrum and energy efficient wireless networks. By leveraging massive low-cost passive elements that are able to reflect radio-frequency (RF) signals with ...
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source