Unit:
Department of Informatics and TelecommunicationsΠληροφορική
Author:
VASILAS DIMITRIOS
Supervisors info:
Μαθιόπουλος Παναγιώτης
Ιδιότητα: Διδακτικό Ερευνητικό Προσωπικό (ΔΕΠ)
Βαθμίδα: Καθηγητής
Τομέας: Επικοινωνίες και Επεξεργασία Σήματος
Τμήμα: Πληροφορικής και Τηλεπικοινωνιών
Ίδρυμα: Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
Hybrid Satellite Terrestrial Relay Networks
Translated title:
Hybrid Satellite Terrestrial Relay Networks
Summary:
With the ever-increasing satellite and terrestrial communication demands in our 5G era,
integrating cooperative transmission into satellite networks is seen as a viable technique
for increasing satellite communications’ energy efficiency and coverage. The high data
rate terminals with the demand for ubiquitous connectivity makes the simultaneous use of
satellite and terrestrial infrastructures a necessity and with the emerging cooperative relaying techniques satellite communications systems can provide seamless connectivity and
broadband access for mobile users. The subject of this thesis is a satellite system, specifically a hybrid satellite-terrestrial relay system (HSTRS). The advantages and problems
that arise in HSTRS will be identified and explored, as well as key system characteristics. Parallel to this, we cover a variety of strategies that have been or will be used with
HSTRS, as well as the advantages of non-orthogonal multiple access (NOMA) schemes.
The application of Power-domain NOMA to various satellite architectures has demonstrated considerable system gains in terms of coverage, availability, efficiency, and other
5G target requirements. The main knowledge of the relay systems is also covered using
the DF and AF models. Finally, the thesis concludes with a discussion on future HSTRS
research.
Main subject category:
Technology - Computer science
Keywords:
HSTRS, 5G, Satellite Communications, Relay Systems, NOMA
