Varotsos GK, Nistazakis HE, Gappmair W, Sandalidis HG, Tombras GS. Simo subcarrier psk fso links with phase noise and non-zero boresight pointing errors over turbulence channels. IET Communications [Internet]. 2019;13:831-836. Website

Frache G, Vavasis GG, Mkrttchian G, Stavropoulos K, Kapotis EC, Nistazakis HE, Tombras GS. Research and categorization of conceptual difficulties in electricity's concepts and basic laws. In: IEEE Global Engineering Education Conference, EDUCON. Vol. April-2019. ; 2019. pp. 999-1006. Website

Frache G, Tombras GS, Nistazakis HE, Thompson N. Pedagogical approaches to 21st century learning: A model to prepare learners for 21st century competencies and skills in engineering. In: IEEE Global Engineering Education Conference, EDUCON. Vol. April-2019. ; 2019. pp. 711-717. Website

Frache G, Tombras GS, Stavropoulos K, Mkrttchian G. The use of technology to support learning at western region colleges, UAE. In: IEEE Global Engineering Education Conference, EDUCON. Vol. April-2019. ; 2019. pp. 770-774. Website

Ninos MP, Nistazakis HE, Leitgeb E, Tombras GS. Spatial diversity for QAM OFDM RoFSO links with nonzero boresight pointing errors over atmospheric turbulence channels. Journal of Modern Optics [Internet]. 2019;66:241-251. Website

Androutsos NA, Nistazakis HE, Khalid H, Muhammad SS, Tombras GS. Serial DF relayed FSO links over mixture Gamma turbulence channels and nonzero boresight spatial jitter. Computation [Internet]. 2019;7. Website

Petavratzis EK, Volos CK, Moysis L, Stouboulos IN, Nistazakis HE, Tombras GS, Valavanis KP. An Inverse Pheromone Approach in a Chaotic Mobile Robot’s Path Planning Based on a Modified Logistic Map. Technologies [Internet]. 2019;7. Website

Manousou DK, Stassinakis AN, Syskakis E, Nistazakis HE, Gardelis S, Tombras GS. Experimental implementation and theoretical investigation of a vanadium dioxide optical filter for bit error rate enhancement of enhanced space shift keying Visible Light Communication systems. Computation [Internet]. 2019;7. Website

Khalid H, Sheikh Muhammad S, Nistazakis HE, Tombras GS. Performance analysis of hard-switching based hybrid FSO/RF system over turbulence channels. Computation [Internet]. 2019;7. Website

Androutsos NA, Nistazakis HE, Stassinakis AN, Tombras GS, Tsigopoulos AD. DF Relayed QAM or DBPSK FSO Links with Generalized Pointing Errors over Mixture Gamma Turbulence Channels. In: 2019 8th International Conference on Modern Circuits and Systems Technologies, MOCAST 2019. ; 2019. Website

Roumelas GD, Nistazakis HE, Stassinakis AN, Tombras GS, Volos CK. Triple Hybrid Terresstrial FSO/RF/MMW System with Receiver's Diversity. In: 2019 8th International Conference on Modern Circuits and Systems Technologies, MOCAST 2019. ; 2019. Website

Varotsos GK, Nistazakis HE, Tombras GS, Aidinis K, Jaber F, Mujeeb Rahman KK. On the use of Diversity in Transdermal Optical Wireless Links with Nonzero Boresight Pointing Errors for Outage Performance Estimation. In: 2019 8th International Conference on Modern Circuits and Systems Technologies, MOCAST 2019. ; 2019. Website

Androutsos NA, Nistazakis HE, Stassinakis AN, Sandalidis HG, Tombras GS. Performance of SIMO FSO links over mixture composite irradiance channels. Applied Sciences (Switzerland) [Internet]. 2019;9. Website