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 …

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 …

Active RIS versus passive RIS: Which is superior with the same power budget?

K Zhi, C Pan, H Ren, KK Chai… - IEEE Communications …, 2022 - ieeexplore.ieee.org
This letter theoretically compares the active reconfigurable intelligent surface (RIS)-aided
system with the passive RIS-aided system. For a fair comparison, we consider that these two …

Joint transmit waveform and passive beamforming design for RIS-aided DFRC systems

R Liu, M Li, Y Liu, Q Wu, Q Liu - IEEE Journal of Selected …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is a promising technology for 6 G networks owing to
its superior ability to enhance the capacity and coverage of wireless communications by …

Communication models for reconfigurable intelligent surfaces: From surface electromagnetics to wireless networks optimization

M Di Renzo, FH Danufane… - Proceedings of the …, 2022 - ieeexplore.ieee.org
A reconfigurable intelligent surface (RIS) is a planar structure that is engineered to
dynamically control the electromagnetic waves. In wireless communications, RISs have …

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 …

Pain without gain: Destructive beamforming from a malicious RIS perspective in IoT networks

Z Lin, H Niu, K An, Y Hu, D Li, J Wang… - IEEE Internet of …, 2023 - ieeexplore.ieee.org
The reconfigurable intelligent surface (RIS) has attracted significant research interests
recently due to its abilities of dynamic channel reconstruction, flexible deployment and …

Positioning in 5G and 6G networks—A survey

F Mogyorósi, P Revisnyei, A Pašić, Z Papp, I Törös… - Sensors, 2022 - mdpi.com
Determining the position of ourselves or our assets has always been important to humans.
Technology has helped us, from sextants to outdoor global positioning systems, but real …

Intelligent surfaces empowered wireless network: Recent advances and the road to 6G

Q Wu, B Zheng, C You, L Zhu, K Shen… - Proceedings of the …, 2024 - ieeexplore.ieee.org
Intelligent surfaces (ISs) have emerged as a key technology to empower a wide range of
appealing applications for wireless networks, due to their low cost, high energy efficiency …

Security and privacy for reconfigurable intelligent surface in 6G: A review of prospective applications and challenges

F Naeem, M Ali, G Kaddoum, C Huang… - IEEE Open Journal of …, 2023 - ieeexplore.ieee.org
While sixth-generation (6G) wireless systems are expected to bring about an explosion of
accessible user information and novel technologies, along with new threats to terrestrial and …