Ανάπτυξη οντολογίας για την βελτιστοποίηση διαχείρισης και διαλειτουργικότητας μεταξύ ετερογενών δικτύων υψηλών ταχυτήτων
Σταθόπουλος - Λαμπρέλλης, Αλέξανδρος Β.
SubjectΤηλεπικοινωνίες ; Οντολογία ; Δίκτυα υπολογιστών -- Πρωτόκολλα ; Wireless communication systems ; Wireless LANs ; Heterogeneous computing
the first chapter of the thesis presents some general concepts for wired and wireless networks, such as handoffs, coding schemes, as well as telecommunications applications used today and to be used tomorrow (While existing today as a vision). The second chapter of the thesis presents various infrastructure network technologies, such as LAN, WLAN, WAN, WiMAX, DVB/DAB, etc. In parallel, a reference is made to the newly born B3G systems and the changes they incur, as well as the desires they emerge. Additionally, the concepts of reconfigurable and cognitive networks are introduced, which are considerably important for every researcher in the area of communications. In the sequel, the third chapter refers to ontologies, which constitute the basic subject of this thesis, as a way to commonly refer to a given subject. Additionally, numerous examples of ontologies are presented, deriving from philosophy, information technology and genetics. Furthermore, methods of creating ontologies are presented, focusing on OWL, as a tool for such methods. The fourth chapter of the thesis presents an ontology for B3G networks, focusing on reconfigurable networks, which has been developed as an IEEE standard under the denomination P1900. The standard is presented in detail, in order to criticize its characteristics and functionality. The fifth chapter of the thesis presents the implementation of the ontology of IEEE 1900 with the use of Protégé plus the mapping of the ontology using object oriented theory. The sixth chapter of the thesis includes a number of useful conclusions, as well as thoughts that could eventually improve the standard, as well as thoughts related to the future of ontologies in wireless networks.