Proxy caching for robust video delivery over lossy networks [Elektronische Ressource] / vorgelegt von Imed Bouazizi

Proxy Caching for Robust Video Delivery overLossy NetworksVon der Fakultät für Mathematik, Informatik und Naturwissenschaftender Rheinisch-Westfälischen Technischen Hochschule Aachenzur Erlangung des akademischen Gradeseines Doktors der Naturwissenschaftengenehmigte Dissertationvorgelegt vonDiplom InformatikerImed Bouaziziaus Chebba/TunesienBerichter: Prof. Dr. rer. nat. Otto SpaniolProf. Dr.-Ing. Jens-Rainer OhmTag der mündlichen Prüfung: 7. September 2004Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfügbar.AbstractVideo delivery is anticipated to become among the most popular services in networking. Therapid advances in communication technologies, combined with the increasing efficiency ofvideo compression techniques have paved the way for innovative and exciting video commu-nication applications. However, the acceptance of video communication services can sufferseverely from variations and deterioration of the video quality. In the absence of Quality-of-Service aware networks, the communicating applications cannot control the service parame-ters offered to them by the underlying protocol layers. By consequence, the applications mayexperience varying packet delivery delays and often also packet loss. This results in severedegradation in the video quality as perceived by the user.In this dissertation, we develop a framework for prioritized video delivery.