Total Outage Probablity of a Multihop Hybrid FSO/MMW System. - George D. Roumelas; Hector E. Nistazakis; Konstantinos Aidinis; George K. Varotsos; Erich Leitgeb (ISSPIT, 2019)

Modulated Retro-Reflector Transdermal Optical Wireless Communication Systems with Wavelength Diversity over Skin-Induced Attenuation and Pointing Errors. - George K. Varotsos; Hector E. Nistazakis; Konstantinos Aidinis; George D. Roumelas; Fadi Jaber; K. K. Mujeeb Rahman (ISSPIT, 2019)

Triple Hybrid Terresstrial FSO/RF/MMW System with Receiver's Diversity. - George D. Roumelas; Hector E. Nistazakis; A. N. Stassinakis; George S. Tombras; Christos K. Volos (MOCAST, 2019)

Underwater Optical Wireless Communications with Chromatic Dispersion and Time Jitter. - George D. Roumelas; Hector E. Nistazakis; Argyris N. Stassinakis; Christos K. Volos; Antreas D. Tsigopoulos (Comput., 2019)

An Empirical Expression for Attenuation Coefficient Evaluation of FSO Links During Night-Time Over Maritime Area of Piraeus Port in Greece. - A. N. Stassinakis; Hector E. Nistazakis; E. V. Chatzikontis; George D. Roumelas; George S. Tombras; Antreas D. Tsigopoulos; Gratchia Mkrttchian (MOCAST, 2020)

On the BER Performance of OOK FSO Links with Receivers' Diversity and Time Jitter over Strong Turbulence Channels. - Panagiotis J. Gripeos; Hector E. Nistazakis; Evgenia Roditi; George D. Roumelas; George S. Tombras; Christos K. Volos (MOCAST, 2021)

Συστήματα ασύρματων οπτικών επικοινωνιών με στατικούς ή κινούμενους πομποδέκτες και μέθοδοι για τη βελτίωση των χαρακτηριστικών απόδοσής τους - George D. Roumelas (2022)

Study on Optical Positioning Using Experimental Visible Light Communication System. - Nikoleta Vitsi; Argyris N. Stassinakis; Nikolaos A. Androutsos; George D. Roumelas; George K. Varotsos; Konstantinos Aidinis; Hector E. Nistazakis (Comput., 2023)