collaborators

6 papers

eess.SP2026

Constellation Design for Robust Interference Mitigation

Athanasios T. Papadopoulos, Thrassos K. Oikonomou, Dimitrios Tyrovolas +4

This paper investigates symbol detection for single-carrier communication systems operating in the presence of additive interference with Nakagami-m statistics. Such interference d…

cs.IT2025

Viterbi State Selection for Discrete Pinching Antenna Systems

Victoria E. Galanopoulou, Thrassos K. Oikonomou, Odysseas G. Karagiannidis +2

Pinching antennas enable dynamic control of electromagnetic wave propagation through reconfigurable radiating structures, but selecting an optimal subset of antennas remains a comb…

eess.SP2025

Constellation Design and Detection under Generalized Hardware Impairments

Thrassos K. Oikonomou, Dimitrios Tyrovolas, Sotiris A. Tegos +3

This paper presents a maximum-likelihood detection framework that jointly mitigates hardware (HW) impairments in both amplitude and phase. By modeling transceiver distortions as re…

eess.SP2025

OFDMA for Pinching Antenna Systems

Thrassos K. Oikonomou, Sotiris A. Tegos, Panagiotis D. Diamantoulakis +2

Pinching-antenna (PA) systems route millimeter wave (mmWave) signals through a leaky waveguide and radiate them at "pinch" apertures, offering low-cost line-of-sight (LoS) coverage…

eess.SP2025

Elliptic Curve Modulation (ECM) for Extremely Robust Physical Layer Encryption

Thrassos K. Oikonomou, George K. Karagiannidis

This paper introduces Elliptic Curve Modulation (ECM), a novel modulation scheme that can be leveraged to effectively shuffle transmitted data while maintaining symbol error probab…

eess.SP2025

Cross-Band Modulation Design for Hybrid RF-Optical Systems

Thrassos K. Oikonomou, Sotiris A. Tegos, Panagiotis D. Diamantoulakis +1

We present a novel cross-band modulation framework that combines 3D modulation in the RF domain with intensity modulation and direct detection in the optical domain, the first such…