PhD Thesis Final Defense to be held on July 5, 2019, at 12:30

Photo credit: Nikolaos Lyras

The examination is open to anyone who wishes to attend (Multimedia amphitheater, Central Library of NTUA).

Thesis Title: Optical Satellite Networks Performance: Channel Modeling, Mitigation Techniques & Optimization

Abstract: The scope of this Thesis is the study of satellite communication systems operating at optical frequencies and the development of accurate channel models required for the reliable design and evaluation of the performance of these systems. More specifically, in the framework of this Thesis stochastic and statistical methodologies for modeling of cloud coverage and cloud attenuation have been developed. Additionally, novel optimization algorithms for the optimum dimensioning of an optical ground station network for the mitigation of cloud coverage are proposed. Furthermore, stochastic channel models for the propagation of the optical signal through the atmosphere, taking into account the turbulence effects are proposed and validated using real experimental measurements from the bi-directional optical satellite link campaign ARTEMIS. In addition, the Deep Space optical links are studied and a link budget analysis is developed. Finally, some interesting conclusions and some ideas for future work are presented.

Supervisor: Athanasios Panagopoulos, Associate Professor

PhD student: Nikolaos Lyras