6 citations · 7 across the 9 of their papers we have counts for
10 papers
RIS Beamforming under Element-Level Variations: Statistical Characterization and Robust Design
Dimitris Kompostiotis, Dimitris Vordonis, Vassilis Paliouras +1
In this paper, a novel analytical framework to characterize the impact of element-level variations on the radiation characteristics of reconfigurable intelligent surfaces (RISs) is…
Deep Learning for Joint Narrowband Interference Cancellation and Soft Demodulation in OFDM Systems
Emmanouil Kavvousanos, Francky Catthoor, Vassilis Paliouras
Narrowband interference (NBI) severely degrades orthogonal frequency-division multiplexing (OFDM) systems by corrupting subcarriers and rendering classical soft demodulation ineffe…
Threat Detection and Resilience Techniques in PRS-Assisted OTDOA 5G Positioning Systems
Thodoris Spanos, Nikolaos Papageorgiou, Samuele Fantinato +4
Precise positioning is a key enabler for emerging 5G applications, from autonomous transport to industrial automation. Yet the open physical layer (PL) leaves standard positioning…
RIS-Aided Localization and Sensing
Dimitris Kompostiotis, Dimitris Vordonis, Konstantinos D. Katsanos +3
High-precision localization and environmental sensing are essential for a new wave of applications, ranging from industrial automation and autonomous systems to augmented reality a…
Optimizing Indoor RIS-Aided Physical-Layer Security: A Codebook-Generation Methodology and Measurement-Based Analysis
Dimitris Kompostiotis, Dimitris Vordonis, Vassilis Paliouras +1
Sixth-Generation (6G) wireless networks aim to support innovative Internet-of-Things (IoT) applications that demand faster and more secure data transmission. While higher Open Syst…
Theoretical and Experimental Evaluation of AoA Estimation in Single-Anchor 5G Uplink Positioning
Thodoris Spanos, Fran Fabra, José A. López-Salcedo +4
As we move towards 6G, the demand for high-precision, cost-effective positioning solutions becomes increasingly critical. Single-anchor positioning offers a promising alternative t…
Evaluating Beam Sweeping for AoA Estimation with an RIS Prototype: Indoor/Outdoor Field Trials
Dimitris Vordonis, Dimitris Kompostiotis, Vassilis Paliouras +2
Reconfigurable Intelligent Surfaces (RISs) have emerged as a promising technology to enhance wireless communication systems by enabling dynamic control over the propagation environ…
Angle of Arrival Estimation Using SRS in 5G NR Uplink Scenarios
Thodoris Spanos, Fran Fabra, José A. López-Salcedo +4
This paper presents a comprehensive exploration of Angle of Arrival (AoA) estimation techniques in 5G environments, using the Sounding Reference Signal (SRS) in Uplink scenarios bo…
USRP-Based Single Anchor Positioning: AoA with 5G Uplink Signals, and UWB Ranging
Thodoris Spanos, Fran Fabra, José A. López-Salcedo +4
This paper presents a novel testbed designed for 5th-Generation (5G) positioning using Universal Software Radio Peripherals (USRPs). The testbed integrates multiple units: an Opera…
Evaluation of RIS-Enabled B5G/6G Indoor Positioning and Mapping using Ray Tracing Models
Dimitris Kompostiotis, Dimitris Vordonis, Vassilis Paliouras +2
A Reconfigurable Intelligent Surface (RIS) can significantly enhance network positioning and mapping, acting as an additional anchor point in the reference system and improving sig…