Fully connected reconfigurable intelligent surface aided rate-splitting multiple access for multi-user multi-antenna transmission
Rate-splitting multiple access (RSMA) has been recognized as a promising and powerful
multiple access (MA) scheme, non-orthogonal transmission framework and interference …
multiple access (MA) scheme, non-orthogonal transmission framework and interference …
An active reconfigurable intelligent surface utilizing phase-reconfigurable reflection amplifiers
Active reconfigurable intelligent surfaces (RISs) have recently been proposed to
complement and generalize passive RIS. In this work, the design for an active RIS based on …
complement and generalize passive RIS. In this work, the design for an active RIS based on …
Joint beamforming designs for active reconfigurable intelligent surface: A sub-connected array architecture
Reconfigurable intelligent surface (RIS) is regarded as a promising technology with great
potential to boost wireless networks. Affected by the “double fading” effect, however …
potential to boost wireless networks. Affected by the “double fading” effect, however …
Deep learning for super-resolution channel estimation in reconfigurable intelligent surface aided systems
W Shen, Z Qin, A Nallanathan - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) enables the configuration of the propagation
environment. Channel estimation is an essential task in realizing the RIS-aided …
environment. Channel estimation is an essential task in realizing the RIS-aided …
A novel reconfigurable intelligent surface for wide-angle passive beamforming
A design for a highly reconfigurable intelligent surface (RIS) that can provide 3-D passive
reflective beamforming suitable for sub-6-GHz frequency bands is proposed. The RIS is …
reflective beamforming suitable for sub-6-GHz frequency bands is proposed. The RIS is …
Performance analysis of RIS-assisted communications with element grouping and spatial correlation
We investigate the performance of a reconfigurable intelligent surface (RIS) assisted single-
input single-output (SISO) communication system where RIS elements are narrowly spaced …
input single-output (SISO) communication system where RIS elements are narrowly spaced …
Channel training & estimation for reconfigurable intelligent surfaces: Exposition of principles, approaches, and open problems
B Shamasundar, N Daryanavardan… - IEEE Access, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RIS) are passive controllable arrays of small reflectors
that direct electromagnetic energy towards or away from the target nodes, thereby allowing …
that direct electromagnetic energy towards or away from the target nodes, thereby allowing …
Semi-Blind Joint Channel and Symbol Estimation for IRS-Assisted MIMO Systems
GT de Araújo, ALF de Almeida… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is a promising technology for the 6 generation of wireless
systems, realizing the smart radio environment concept. This paper presents a novel tensor …
systems, realizing the smart radio environment concept. This paper presents a novel tensor …
Intelligent reflecting surface-assisted free space optical quantum communications
This paper studies intelligent reflecting surface (IRS)-assisted free space optical (FSO)
quantum communication systems. An IRS can relax the requirement of a line-of-sight (LoS) …
quantum communication systems. An IRS can relax the requirement of a line-of-sight (LoS) …
Channel Estimation and Beamforming for Beyond Diagonal Reconfigurable Intelligent Surfaces
Beyond diagonal reconfigurable intelligent surface (BD-RIS) is a new advance and
generalization of the RIS technique. BD-RIS breaks through the isolation between RIS …
generalization of the RIS technique. BD-RIS breaks through the isolation between RIS …