6 citations · 7 across the 9 of their papers we have counts for
7 papers · 1 filter
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…
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…
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…