Impact of Location on Content Delivery [Elektronische Ressource] / Bernhard Ager. Betreuer: Anja Feldmann

¨TECHNISCHE UNIVERSITAT BERLIN¨ ¨FAKULTAT FUR ELEKTROTECHNIK UND INFORMATIK¨LEHRSTUHL FUR INTELLIGENTE NETZE UNDMANAGEMENT VERTEILTER SYSTEMEImpactofLocationonContentDeliveryvorgelegtvonBernhardAger(Dipl.-Inf.)vonderFakultat¨ IV–ElektrotechnikundInformatikderTechnischenUniversitat¨ BerlinzurErlangungdesakademischenGradesDOKTOR DER NATURWISSENSCHAFTEN (DR. RER. NAT.)genehmigteDissertationPromotionsausschuss:Vorsitzender: Prof. Dr. Jean-PierreSeifert,TUBerlinGutachterin: Prof. AnjaFeldmann,Ph.D.,TUBerlinGutachter: Prof. BruceMaggs,Ph.D.,DukeUniversityGutachter: Prof. Dr. habil. OdejKao,TUBerlinTagderwissenschaftlichenAussprache: 25. Juni2011Berlin2011D8324AbstractTheincreasingnumberofusersaswellastheirdemandformoreandrichercon-tent has led to an exponential growth of Internet traffic for more than 15 years.Inaddition,newapplicationsandusecaseshavechangedthetypeoftraffic. Forexample,socialnetworkingenablesuserstopublishtheirowncontent. This usergenerated content is often published on popular sites such as YouTube, Twitter,andFacebook. Anotherexamplearetheofferingsofinteractiveandmulti-mediacontent by content providers, e.g., Google Maps or IPTV services. With the in-troduction of peer-to-peer (P2P) protocols in 1998 an even more radical changeemergedbecauseP2Pprotocolsallowuserstodirectlyexchangelargeamountsofcontent: The peers transfer data without the need for an intermediary and oftencentralized server.