Pergamos - Library and Information Center of National and Kapodistrian University of Athens

Unit:

Κατεύθυνση Ηλεκτρονική και Ραδιοηλεκτρολογία (Ρ/Η, με πρόσθετη εξειδίκευση στις Τηλεπικοινωνίες και στην επεξεργασία και διοίκηση της Πληροφορίας)
Library of the School of Science

Deposit date:

2015-03-16

Year:

2015

Author:

Γκαραβέλλας Γεώργιος

Supervisors info:

Ε. Νισταζάκης Επίκ. Καθηγητής, Γ. Τόμπρας, Καθηγητής, Εμμ. Τσίλης Επίκ. Καθηγητής

Original Title:

Μελέτη της λειτουργίας επίγειων ασύρματων οπτικών ζεύξεων ελεύθερου χώρου και του τρόπου διάδοσης του οπτικού σήματος στην ατμόσφαιρα

Languages:

Greek

Translated title:

Operation study of the terrestrial wireless fso links and the study of the optical signal propagation mode in the atmosphere

Summary:

In the last decade there has been a great development of communication systems
driven by the growing need of bandwidth and ubiquitous data connectivity.
Wireless communication is a research area to meet these needs. Wireless optical
systems or Free Space Optics (FSO) systems have bandwidth of gigabytes, provide
network interoperability and expandability and use the laser transmission
speeds without to buy spectrum. As a result of the above, nowadays, the FSO
system is a dynamic research area.
The goal of the diploma thesis is the operation study of the terrestrial
wireless FSO links and the study of the optical signal propagation mode in the
atmosphere. The diploma thesis makes reference to optical wireless
communication and describes the terrestrial FSO link. It provides an analysis
of the optical light propagation in unguided media through the atmospheric
effects on optical signals. In addition, it provides a description of the
structure of the FSO transmitter and receiver domain and an analysis of the FSO
link design. It continues with the modeling of the atmospheric turbulence and
scintillation and concludes with the presentation of the experimental research
in fog attenuation dependence on atmospheric visibility at two wavelengths for
FSO link planning with the use of proposed and standard models.

Keywords:

Optical wireless communication, Free Space Optics, laser, attenuation, atmospheric turbulence

Index:

Number of index pages:

Contains images:

Yes

Number of references:

Number of pages:

105

File:

File access is restricted.

Persistent URL: