4 papers · 1 filter
Secure Rate-Splitting and RIS Beamforming with Untrusted Energy Harvesting Receivers
Hamid Reza Hashempour, Le-Nam Tran, Duy H. N. Nguyen +1
We consider a reconfigurable intelligent surface (RIS)-assisted heterogeneous network comprising legitimate information-harvesting receivers (IHRs) and untrusted energy-harvesting…
Robust SAC-Enabled UAV-RIS Assisted Secure MISO Systems With Untrusted EH Receivers
Hamid Reza Hashempour, Le-Nam Tran, Duy H. N. Nguyen +1
Secure downlink transmission in UAV-assisted reconfigurable intelligent surface (RIS)-enabled multiuser MISO systems is challenging due to imperfect channel state information (CSI)…
Achievable Rate Optimization for Large Flexible Intelligent Metasurface Assisted Downlink MISO under Statistical CSI
Ling He, Vaibhav Kumar, Anastasios Papazafeiropoulos +3
The integration of electromagnetic metasurfaces into wireless communications enables intelligent control of the propagation environment. Recently, flexible intelligent metasurfaces…
Variational Bayesian Channel Estimation and Data Detection for Cell-Free Massive MIMO with Low-Resolution Quantized Fronthaul Links
Sajjad Nassirpour, Toan-Van Nguyen, Hien Q. Ngo +3
We study the joint channel estimation and data detection (JED) problem in a cell-free massive multiple-input multiple-output (CF-mMIMO) network, where access points (APs) communica…