Multimedia stream adaptation services [Elektronische Ressource] / vorgelegt von Andreas Schorr

Universitat˜ UlmInstitut fur˜ Verteilte SystemeMultimedia Stream Adaptation ServicesDissertation zur Erlangung des Doktorgrades Dr. rer. nat.der Fakult˜at fur˜ Ingenieurwissenschaften und Informatikder Universitat˜ Ulmvorgelegt vonAndreas Schorraus Ulm an der DonauUlm, Oktober 2006Multimedia Stream Adaptation ServicesBYAndreas SchorrA DISSERTATION SUBMITTED INPARTIAL FULFILLMENT OF THEREQUIREMENTS FOR THE DEGREE OFDR. RER. NAT.ATUNIVERSITY OF ULMJAMES-FRANCK-RING,89069 ULM, GERMANYOCTOBER, 2006?c Copyright by Andreas Schorr, 2006Amtierender Dekan: Prof. Dr. Helmuth Partsch1. Gutachter: Prof. Dr. Franz J. Hauck2. Gutachter: Prof. Dr. Michael Weber3. Gutachter: Dr. Andreas J. Kassler (Assoc. Prof.)Tag der Kolloquiumsprufung: noch nicht bekannt˜AbstractDuring the last decade, a clear trend towards all-over-IP multimedia communication hasevolved. Thereexistsagreatvarietyofstationaryandmobiledeviceswhichallowstreamingof digital audio and video content over IP networks. But this variety of multimedia enableddevices comes along with a great variety of difierent hardware and software capabilities anddifierent access network technologies (having heterogeneous properties like bandwidth orpacket loss rate). Even if two applications support a common set of media formats, it isoften impossible to use such a common format because of resource constraints imposed bythe difierent hardware capabilities and network types.