RIS-aided cell-free massive MIMO systems for 6G: Fundamentals, system design, and applications

E Shi, J Zhang, H Du, B Ai, C Yuen… - Proceedings of the …, 2024 - ieeexplore.ieee.org
An introduction of intelligent interconnectivity for people and things has posed higher
demands and more challenges for sixth-generation (6G) networks, such as high spectral …

3D localization with a single partially-connected receiving RIS: Positioning error analysis and algorithmic design

J He, A Fakhreddine, C Vanwynsberghe… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In this article, we introduce the concept of partially-connected receiving reconfigurable
intelligent surfaces (R-RISs), which refers to metasurfaces designed to efficiently sense …

A tutorial on holographic MIMO communications—Part III: Open opportunities and challenges

J An, C Yuen, C Huang, M Debbah… - IEEE …, 2023 - ieeexplore.ieee.org
Holographic multiple-input multiple-output (HMIMO) technology, which uses spatially
continuous surfaces for signal transmission and reception, is envisioned to be a promising …

Efficient beamforming and radiation pattern control using stacked intelligent metasurfaces

NU Hassan, J An, M Di Renzo… - IEEE Open Journal of …, 2024 - ieeexplore.ieee.org
In this paper, we consider a stacked intelligent metasurface (SIM) with the ability to perform
beamforming in the electromagnetic (EM) wave domain. We develop a path-loss model that …

Angular-distance based channel estimation for holographic MIMO

Y Chen, Y Wang, Z Wang, Z Han - IEEE Journal on Selected …, 2024 - ieeexplore.ieee.org
Leveraging the concept of the electromagnetic signal and information theory, holographic
multiple-input multiple-output (MIMO) technology opens the door to an intelligent and …

Full duplex holographic MIMO for near-field integrated sensing and communications

I Gavras, MA Islam, B Smida… - 2023 31st European …, 2023 - ieeexplore.ieee.org
This paper presents an in-band Full Duplex (FD) integrated sensing and communications
system comprising a holographic Multiple-Input Multiple-Output (MIMO) base station, which …

Applications of absorptive reconfigurable intelligent surfaces in interference mitigation and physical layer security

F Wang, AL Swindlehurst - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
This paper explores the use of reconfigurable intelligent surfaces (RIS) in mitigating cross-
system interference in spectrum sharing and secure wireless applications. Unlike …

Bayesian learning for double-RIS aided ISAC systems with superimposed pilots and data

X Gan, C Huang, Z Yang, C Zhong… - IEEE Journal of …, 2024 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has great potential to improve the performance of
integrated sensing and communication (ISAC) systems, especially in scenarios where line …

Robust millimeter beamforming via self-supervised hybrid deep learning

F Zhu, B Wang, Z Yang, C Huang… - 2023 31st European …, 2023 - ieeexplore.ieee.org
Beamforming with large-scale antenna arrays has been widely considered in wireless
communications research in recent years, playing a significant role in fifth generation (5G) …

Capacity analysis of holographic MIMO channels with practical constraints

Y Zhang, J Zhang, Y Zhang, Y Yao… - IEEE Wireless …, 2023 - ieeexplore.ieee.org
Holographic Multiple-Input and Multiple-Output (MIMO) is envisioned as a promising
technology to realize unprecedented spectral efficiency by integrating a large number of …