Holographic MIMO communications: Theoretical foundations, enabling technologies, and future directions

T Gong, P Gavriilidis, R Ji, C Huang… - … Surveys & Tutorials, 2023 - ieeexplore.ieee.org
Future wireless systems are envisioned to create an endogenously holography-capable,
intelligent, and programmable radio propagation environment, that will offer unprecedented …

A survey on STAR-RIS: Use cases, recent advances, and future research challenges

M Ahmed, A Wahid, SS Laique… - IEEE Internet of …, 2023 - ieeexplore.ieee.org
The recent development of metasurfaces, which may enable several use cases by modifying
the propagation environment, is anticipated to substantially affect the performance of sixth …

Stacked intelligent metasurfaces for efficient holographic MIMO communications in 6G

J An, C Xu, DWK Ng… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
A revolutionary technology relying on Stacked Intelligent Metasurfaces (SIM) is capable of
carrying out advanced signal processing directly in the native electromagnetic (EM) wave …

Active reconfigurable intelligent surfaces: Expanding the frontiers of wireless communication-a survey

M Ahmed, S Raza, AA Soofi, F Khan… - … Surveys & Tutorials, 2024 - ieeexplore.ieee.org
The swift progress of metasurface technology, enabling meticulous manipulation of the
propagation environment, is anticipated to bring a transformative impact on sixth-generation …

Multi-user holographic MIMO surfaces: Channel modeling and spectral efficiency analysis

L Wei, C Huang, GC Alexandropoulos… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
The multi-user Holographic Multiple-Input and Multiple-Output Surface (MU-HMIMOS)
paradigm, which is capable of realizing large continuous apertures with minimal power …

Reconfigurable intelligent surfaces: Channel characterization and modeling

J Huang, CX Wang, Y Sun, R Feng… - Proceedings of the …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are 2-D metasurfaces, which can intelligently
manipulate electromagnetic waves by low-cost near passive reflecting elements. RIS is …

A reconfigurable intelligent surface with integrated sensing capability

I Alamzadeh, GC Alexandropoulos, N Shlezinger… - Scientific reports, 2021 - nature.com
Reconfigurable reflective surfaces can alter the propagation environment to improve
wireless communication and power transfer. Paramount to this operation—which has …

Reconfiguring wireless environments via intelligent surfaces for 6G: Reflection, modulation, and security

J Xu, C Yuen, C Huang, N Ul Hassan… - Science China …, 2023 - Springer
The reconfigurable intelligent surface (RIS) has been recognized as an essential enabling
technology for sixth-generation (6G) mobile communication networks. An RIS comprises a …

Pervasive machine learning for smart radio environments enabled by reconfigurable intelligent surfaces

GC Alexandropoulos, K Stylianopoulos… - Proceedings of the …, 2022 - ieeexplore.ieee.org
The emerging technology of reconfigurable intelligent surfaces (RISs) is provisioned as an
enabler of smart wireless environments, offering a highly scalable, low-cost, hardware …

Location awareness in beyond 5G networks via reconfigurable intelligent surfaces

Z Wang, Z Liu, Y Shen, A Conti… - IEEE Journal on Selected …, 2022 - ieeexplore.ieee.org
Achieving accurate location-awareness in wireless networks requires integrated sensing
and communication (ISAC), where optimization, signal processing, and data fusion are …