Results 21 to 30 of about 405,425 (327)
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 +3 more
openaire +2 more sources
Towards Smart and Reconfigurable Environment: Intelligent Reflecting Surface Aided Wireless Network [PDF]
IEEE Communications Magazine, 2019 IRS is a new and revolutionizing technology that is able to significantly improve the performance of wireless communication networks, by smartly reconfiguring the wireless propagation environment with the use of massive low-cost passive reflecting ...
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Intelligent Reflecting Surface Enabled Sensing: Cramér-Rao Bound Optimization [PDF]
IEEE Transactions on Signal Processing, 2022 This article investigates intelligent reflecting surface (IRS) enabled non-line-of-sight (NLoS) wireless sensing, in which an IRS is deployed to assist an access point (AP) to sense a target at its NLoS region.
Xianxin Song +4 more
semanticscholar +1 more source
Enabling Panoramic Full-Angle Reflection Via Aerial Intelligent Reflecting Surface [PDF]
2020 IEEE International Conference on Communications Workshops (ICC Workshops), 2020 This paper proposes a new three dimensional (3D) networking architecture enabled by aerial intelligent reflecting surface (AIRS) to achieve panoramic signal reflection from the sky. Compared to the conventional terrestrial IRS, AIRS not only enjoys higher deployment flexibility, but also is able to achieve 360$^\circ$ panoramic full-angle reflection ...
Lu, Haiquan +3 more
openaire +2 more sources
Electromagnetic Model of Reflective Intelligent Surfaces [PDF]
IEEE Open Journal of the Communications Society, 2021 An accurate and simple analytical model for the computation of the reflection amplitude and phase of Reconfigurable Intelligent Surfaces is presented. The model is based on a transmission-line circuit representation of the RIS which takes into account the physics behind the structure including the effect of all relevant geometrical and electrical ...
Costa F., Borgese M.
openaire +4 more sources
Beamforming Optimization for Wireless Network Aided by Intelligent Reflecting Surface With Discrete Phase Shifts [PDF]
IEEE Transactions on Communications, 2019 Intelligent reflecting surface (IRS) is a cost-effective solution for achieving high spectrum and energy efficiency in future wireless networks by leveraging massive low-cost passive elements that are able to reflect the signals with adjustable phase ...
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
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
Intelligent Reflecting Surface Enhanced Wireless Network: Joint Active and Passive Beamforming Design [PDF]
Global Communications Conference, 2018 Intelligent reflecting surface (IRS) is envisioned to have abundant applications in future wireless networks by smartly reconfiguring the signal propagation for performance enhance- ment.
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Hybrid Relay-Reflecting Intelligent Surface-Assisted Wireless Communications
IEEE Transactions on Vehicular Technology, 2022 Reconfigurable intelligent surface (RIS) has emerged as a cost- and energy-efficient solution to enhance the wireless communication capacity. However, recent studies show that a very large surface is required for a RIS-assisted communication system; otherwise, they may be outperformed by the conventional relay.
Nhan Thanh Nguyen +3 more
openaire +3 more sources
Capacity Characterization for Intelligent Reflecting Surface Aided MIMO Communication [PDF]
IEEE Journal on Selected Areas in Communications, 2019 Intelligent reflecting surface (IRS) is a promising solution to enhance the wireless communication capacity both cost-effectively and energy-efficiently, by properly altering the signal propagation via tuning a large number of passive reflecting units ...
Shuowen Zhang, Rui Zhang
semanticscholar +1 more source