5 papers
Experimental Evaluation of a Low-Power Ultra-Wideband Receiver for Spectrum Sensing
Panagiotis Vlachos, Ioannis A. Bartsiokas, Cedric Dehos +2
Walsh-sequence-based receiver architectures offer an alternative approach for the reception and reconstruction of multiple simultaneous RF signals over wide bandwidths. While previ…
Federated Learning-driven Beam Management in LEO 6G Non-Terrestrial Networks
Maria Lamprini Bartsioka, Ioannis A. Bartsiokas, Athanasios D. Panagopoulos +2
Low Earth Orbit (LEO) Non-Terrestrial Networks (NTNs) require efficient beam management under dynamic propagation conditions. This work investigates Federated Learning (FL)-based b…
FRIEND: Federated Learning for Joint Optimization of multi-RIS Configuration and Eavesdropper Intelligent Detection in B5G Networks
Maria Lamprini A. Bartsioka, Ioannis A. Bartsiokas, Anastasios K. Papazafeiropoulos +3
As wireless systems evolve toward Beyond 5G (B5G), the adoption of cell-free (CF) millimeter-wave (mmWave) architectures combined with Reconfigurable Intelligent Surfaces (RIS) is…
On the Ergodic Capacity for SIM-Aided Holographic MIMO Communications
Anastasios Papazafeiropoulos, Ioannis Bartsiokas, Dimitra I. Kaklamani +1
We derive a novel closed-form lower bound on the ergodic capacity of holographic multiple-input multiple-output (HMIMO) systems enhanced by stacked intelligent metasurfaces (SIMs)…
ML-Enabled Eavesdropper Detection in Beyond 5G IIoT Networks
Maria-Lamprini A. Bartsioka, Ioannis A. Bartsiokas, Panagiotis K. Gkonis +2
Advanced fifth generation (5G) and beyond (B5G) communication networks have revolutionized wireless technologies, supporting ultra-high data rates, low latency, and massive connect…