An overview of signal processing techniques for RIS/IRS-aided wireless systems

C Pan, G Zhou, K Zhi, S Hong, T Wu… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
In the past as well as present wireless communication systems, the wireless propagation
environment is regarded as an uncontrollable black box that impairs the received signal …

Convergent communication, sensing and localization in 6G systems: An overview of technologies, opportunities and challenges

C De Lima, D Belot, R Berkvens, A Bourdoux… - IEEE …, 2021 - ieeexplore.ieee.org
Herein, we focus on convergent 6G communication, localization and sensing systems by
identifying key technology enablers, discussing their underlying challenges, implementation …

Reconfigurable intelligent surfaces: A signal processing perspective with wireless applications

E Björnson, H Wymeersch, B Matthiesen… - IEEE Signal …, 2022 - ieeexplore.ieee.org
Antenna array technology enables the directional transmission and reception of wireless
signals for communication, localization, and sensing purposes. The signal processing …

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 …

Beam focusing for near-field multiuser MIMO communications

H Zhang, N Shlezinger, F Guidi… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Large antenna arrays and high-frequency bands are two key features of future wireless
communication systems. The combination of large-scale antennas with high transmission …

A tutorial on terahertz-band localization for 6G communication systems

H Chen, H Sarieddeen, T Ballal… - … Surveys & Tutorials, 2022 - ieeexplore.ieee.org
Terahertz (THz) communications are celebrated as key enablers for converged localization
and sensing in future sixth-generation (6G) wireless communication systems and beyond …

Foundations of MIMO radar detection aided by reconfigurable intelligent surfaces

S Buzzi, E Grossi, M Lops… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
A reconfigurable intelligent surface (RIS) is a nearly-passive flat layer made of inexpensive
elements that can add a tunable phase shift to the im**ing electromagnetic wave and are …

LOS/NLOS near-field localization with a large reconfigurable intelligent surface

D Dardari, N Decarli, A Guerra… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper considers a scenario where a reconfigurable intelligent surface (RIS) is deployed
to allow the localization of mobile users adopting a single anchor node, even under non-line …

Secure intelligent reflecting surface-aided integrated sensing and communication

M Hua, Q Wu, W Chen, OA Dobre… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, an intelligent reflecting surface (IRS) is leveraged to enhance the physical
layer security of an integrated sensing and communication (ISAC) system in which the IRS is …

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 …