Improving physical layer security in IRS-aided WPCN multicast systems via Stackelberg game
This paper investigates an intelligent reflecting surface (IRS) aided secure wireless powered
communication network (WPCN), where a transmitter first harvests energy from a power …
communication network (WPCN), where a transmitter first harvests energy from a power …
Low-to-zero-overhead IRS reconfiguration: Decoupling illumination and channel estimation
V Jamali, GC Alexandropoulos… - IEEE …, 2022 - ieeexplore.ieee.org
Most algorithms developed for the optimization of Intelligent Reflecting Surfaces (IRSs) so
far require knowledge of full Channel State Information (CSI). However, the resulting …
far require knowledge of full Channel State Information (CSI). However, the resulting …
Near-field hierarchical beam management for RIS-enabled millimeter wave multi-antenna systems
GC Alexandropoulos, V Jamali… - 2022 IEEE 12th …, 2022 - ieeexplore.ieee.org
In this paper, we present a low overhead beam management approach for near-field
millimeter-wave multi-antenna communication systems enabled by Reconfigurable …
millimeter-wave multi-antenna communication systems enabled by Reconfigurable …
WiThRay: A versatile ray-tracing simulator for smart wireless environments
H Choi, J Oh, J Chung, GC Alexandropoulos… - IEEE Access, 2023 - ieeexplore.ieee.org
Channel simulators capitalizing on the ray-tracing (RT) principle are widely used in wireless
communications for generating realistic channel data. By combining the RT algorithm for the …
communications for generating realistic channel data. By combining the RT algorithm for the …
Robust active and passive beamformer design for IRS-aided downlink MISO PS-SWIPT with a nonlinear energy harvesting model
This paper optimizes the energy consumption of the downlink of a multiple-antenna base
station (BS) transmitting to several single-antenna users. The BS utilizes simultaneous …
station (BS) transmitting to several single-antenna users. The BS utilizes simultaneous …
Joint location and beamforming design for STAR-RIS assisted NOMA systems
Simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)
assisted non-orthogonal multiple access (NOMA) communication systems are investigated …
assisted non-orthogonal multiple access (NOMA) communication systems are investigated …
Reconfigurable intelligent surface assisted multi-carrier wireless systems for doubly selective high-mobility Ricean channels
Reconfigurable intelligent surfaces (RIS) constitute a revolutionary technique of beneficially
reconfiguring the smart radio environment. However, despite the fact that wireless …
reconfiguring the smart radio environment. However, despite the fact that wireless …
Bayesian user localization and tracking for reconfigurable intelligent surface aided MIMO systems
In this paper, we study the user localization and tracking problem in the reconfigurable
intelligent surface (RIS) aided multiple-input multiple-output (MIMO) system, where a multi …
intelligent surface (RIS) aided multiple-input multiple-output (MIMO) system, where a multi …
Transmissive RIS for B5G communications: Design, prototyping, and experimental demonstrations
Reconfigurable intelligent surface (RIS) has been widely considered as a key technique to
improve spectral efficiency for the 5th generation (5G) and beyond 5G (B5G) …
improve spectral efficiency for the 5th generation (5G) and beyond 5G (B5G) …
Hybrid beamforming for RIS-empowered multi-hop terahertz communications: A DRL-based method
Wireless communication in the TeraHertz band (0.1-10 THz) is envisioned as one of the key
enabling technologies for the future six generation (6G) wireless communication systems …
enabling technologies for the future six generation (6G) wireless communication systems …