114 citations · 339 across the 61 of their papers we have counts for
74 papers
Counteracting Eavesdropper Attacks Through Reconfigurable Intelligent Surfaces: A New Threat Model and Secrecy Rate Optimization
George C. Alexandropoulos, Konstantinos D. Katsanos, Miaowen Wen +1
The potential of Reconfigurable Intelligent Surfaces (RISs) for energy-efficient and performance-boosted wireless communications is recently gaining remarkable research attention,…
3D Localization with a Single Partially-Connected Receiving RIS: Positioning Error Analysis and Algorithmic Design
Jiguang He, Aymen Fakhreddine, Charles Vanwynsberghe +2
In this paper, we introduce the concept of partially-connected Receiving Reconfigurable Intelligent Surfaces (R-RISs), which refers to metasurfaces designed to efficiently sense el…
Tri-Polarized Holographic MIMO Surface in Near-Field: Channel Modeling and Precoding Design
Li Wei, Chongwen Huang, George C. Alexandropoulos +6
This paper investigates the utilization of triple polarization (TP) for multi-user (MU) holographic multiple-input multi-output surface (HMIMOS) wireless communication systems, tar…
Integrated Sensing and Communications with Reconfigurable Intelligent Surfaces
Sundeep Prabhakar Chepuri, Nir Shlezinger, Fan Liu +3
Integrated sensing and communications (ISAC) are envisioned to be an integral part of future wireless networks, especially when operating at the millimeter-wave (mmWave) and terahe…
Compressed-Sensing-Based 3D Localization with Distributed Passive Reconfigurable Intelligent Surfaces
Jiguang He, Aymen Fakhreddine, Henk Wymeersch +1
In this paper, the programmable signal propagation paradigm, enabled by Reconfigurable Intelligent Surfaces (RISs), is exploited for high accuracy -Dimensional (3D) user localiz…
Joint Channel and Direction Estimation for Ground-to-UAV Communications Enabled by A Simultaneous Reflecting and Sensing RIS
Jiguang He, Aymen Fakhreddine, George C. Alexandropoulos
Hybrid Reconfigurable Intelligent Surfaces (HRISs), which are capable of simultaneous programmable reflections and sensing, are expected to play a significant role in future wirele…