Phase shift design in RIS empowered wireless networks: from optimization to AI-based methods

Z Li, S Wang, Q Lin, Y Li, M Wen, YC Wu, HV Poor - Network, 2022 - mdpi.com
Reconfigurable intelligent surfaces (RISs) offer the potential to customize the radio
propagation environment for wireless networks. To fully exploit the advantages of RISs in …

Secure multicast energy-efficiency maximization with massive RISs and uncertain CSI: First-order algorithms and convergence analysis

Z Li, S Wang, M Wen, YC Wu - IEEE Transactions on Wireless …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has the potential to significantly enhance the
network secure transmission performance by reconfiguring the wireless propagation …

Enhancing physical layer security with RIS under multi-antenna eavesdroppers and spatially correlated channel uncertainties

Z Li, Q Lin, YC Wu, DWK Ng… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has the capability to significantly enhance physical
layer security by reconfiguring the propagation in wireless communications. However, due to …

Dual-Sided Active-IOS-Enhanced Secure Multi-Cell Systems Exploiting Eavesdroppers' Statistical CSI

C Liu, Y Li, DWK Ng, J Yuan… - IEEE Transactions on …, 2025 - ieeexplore.ieee.org
This paper addresses the challenges of “double-fading” effect and coverage limitations
encountered by passive intelligent reflecting surface (IRS) by introducing a novel IRS …

Angle aware user cooperation for secure massive MIMO in Rician fading channel

S Wang, M Wen, M **a, R Wang… - IEEE Journal on …, 2020 - ieeexplore.ieee.org
Massive multiple-input multiple-output communications can achieve high-level security by
concentrating radio frequency signals towards the legitimate users. However, this system is …

Sum rate maximization of secure NOMA transmission with imperfect CSI

Z Li, S Wang, P Mu, YC Wu - ICC 2020-2020 IEEE International …, 2020 - ieeexplore.ieee.org
In multiple access systems, physical layer security is degraded since more attacking targets
are available for the eavesdropper. Fortunately, it has been recently demonstrated that non …

Enhancing Outage-Constrained Secure EE with RIS Under a Multi-Antenna Eavesdropper

Z Li, Q Lin, YC Wu, DWK Ng… - … 2023-2023 IEEE …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has the potential to significantly enhance the
physical layer security by reconfiguring the wireless propagation environment. However …

Outage constrained secrecy rate maximization of intelligent reflecting surface aided transmission

Z Li, S Wang, M Wen, YC Wu - ICC 2021-IEEE International …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) has the potential to significantly enhance the network
secure transmission performance by reconfiguring the wireless propagation environment …

Outage-Constrained Sum Secrecy Rate Maximization for STAR-RIS with Energy-Harvesting Eavesdroppers

Z Rostamikafaki, F Chan, C D'Amours - arxiv preprint arxiv:2410.00896, 2024 - arxiv.org
This article proposes a novel strategy for enhancing secure wireless communication through
the use of a simultaneously transmitting and reflecting reconfigurable intelligent surface …

[PDF][PDF] Reconfigurable intelligent surface aided secure transmission: Outage-constrained energy-efficiency maximization

Z Li, S Wang, M Wen, YC Wu - arxiv preprint arxiv:2010.15354, 2020 - researchgate.net
Reconfigurable intelligent surface (RIS) has the potential to significantly enhance the
network secure transmission performance by reconfiguring the wireless propagation …