Optimal Reconfigurable Intelligent Surface Deployment for Secure Communication in Cell-Free Massive Multiple-Input Multiple-Output Systems with Coverage Area DOI Open Access

Jie Zhao,

Qi Zhang,

Tianyu Ai

et al.

Electronics, Journal Year: 2025, Volume and Issue: 14(2), P. 241 - 241

Published: Jan. 8, 2025

This paper investigates the secure communication in reconfigurable intelligent surface (RIS)-aided cell-free massive multiple-input multiple-output (CF-mMIMO) system presence of an eavesdropper (Eve). Since RIS can only reflect incident signal from its front, we define coverage and non-coverage area based on whether signals be reflected. The is affected by deployment position rotation angle, thus, take both these two factors into account a closed-form approximation for ergodic secrecy rate legitimate user derived. Based it, optimal phase shift are obtained through alternating iteration method, angle achieved exhaustive enumeration angles with certain interval. Simulations confirm that our achieve superior rate. We find to guarantee best rate, should placed near target user, adjusted make as many access points (APs) possible within area.

Language: Английский

Newton Raphson Based Optimizer for Optimal Integration of FAS and RIS in Wireless Systems DOI Creative Commons
Ahmed S. Alwakeel, Ali M. El‐Rifaie, Ghareeb Moustafa

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 103822 - 103822

Published: Jan. 1, 2025

Language: Английский

Citations

2
Optimal Reconfigurable Intelligent Surface Deployment for Secure Communication in Cell-Free Massive Multiple-Input Multiple-Output Systems with Coverage Area DOI Open Access

Jie Zhao,

Qi Zhang,

Tianyu Ai

et al.

Electronics, Journal Year: 2025, Volume and Issue: 14(2), P. 241 - 241

Published: Jan. 8, 2025

This paper investigates the secure communication in reconfigurable intelligent surface (RIS)-aided cell-free massive multiple-input multiple-output (CF-mMIMO) system presence of an eavesdropper (Eve). Since RIS can only reflect incident signal from its front, we define coverage and non-coverage area based on whether signals be reflected. The is affected by deployment position rotation angle, thus, take both these two factors into account a closed-form approximation for ergodic secrecy rate legitimate user derived. Based it, optimal phase shift are obtained through alternating iteration method, angle achieved exhaustive enumeration angles with certain interval. Simulations confirm that our achieve superior rate. We find to guarantee best rate, should placed near target user, adjusted make as many access points (APs) possible within area.

Language: Английский

Citations

0