8 papers
Flexible Intelligent Metasurface for Downlink Communications under Statistical CSI
Vaibhav Kumar, Anastasios Papazafeiropoulos, Pandelis Kourtessis +4
Flexible intelligent metasurface (FIM) is a recently developed, groundbreaking hardware technology with promising potential for 6G wireless systems. Unlike conventional rigid anten…
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)…
Ergodic Mutual Information and Outage Probability for SIM-Assisted Holographic MIMO Communications
Anastasios Papazafeiropoulos, Pandelis Kourtessis, Dimitra I. Kaklamani +1
Stacked intelligent metasurface (SIM) is a promising enabler for next-generation high-capacity networks that exhibit better performance compared to its single-layer counterpart by…
Dynamic Temporal Positional Encodings for Early Intrusion Detection in IoT
Ioannis Panopoulos, Maria-Lamprini A. Bartsioka, Sokratis Nikolaidis +3
The rapid expansion of the Internet of Things (IoT) has introduced significant security challenges, necessitating efficient and adaptive Intrusion Detection Systems (IDS). Traditio…
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…
Channel Estimation for Stacked Intelligent Metasurfaces in Rician Fading Channels
Anastasios Papazafeiropoulos, Pandelis Kourtessis, Dimitra I. Kaklamani +1
The recent combination of the rising architectures, known as stacked intelligent metasurface (SIM) and holographic multiple-input multiple-output (HMIMO), drives toward breakthroug…