5 papers
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)…
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…
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…
A Robust Design for BackCom Assisted Hybrid NOMA
Muhammad Fainan Hanif, Le-Nam Tran, Zhiguo Ding +1
Hybrid non-orthogonal multiple access (H-NOMA) is inherently an enabler of massive machine type communications, a key use case for sixth-generation (6G) systems. Together with back…