caa a22 4500 605446768 CHVBK 20210128100128.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s11042-014-2072-5 doi (NATIONALLICENCE)springer-10.1007/s11042-014-2072-5 Requirement driven prospects for realizing user-centric network orchestration [Elektronische Daten] [Thomas Zinner, Tobias Hoßfeld, Markus Fiedler, Florian Liers, Thomas Volkert, Rahamatullah Khondoker, Raimund Schatz] The Internet's infrastructure shows severe limitations when an optimal end user experience for multimedia applications should be achieved in a resource-efficiently way. In order to realize truly user-centric networking, an information exchange between applications and networks is required. To this end, network-application interfaces need to be deployed that enable a better mediation of application data through the Internet. For smart multimedia applications and services, the application and the network should directly communicate with each other and exchange information in order to ensure an optimal Quality of Experience (QoE). In this article, we follow a use-case driven approach towards user-centric network orchestration. We derive user, application, and network requirements for three complementary use cases: HD live TV streaming, video-on-demand streaming and user authentication with high security and privacy demands, as typically required for payed multimedia services. We provide practical guidelines for achieving an optimal QoE efficiently in the context of these use cases. Based on these results, we demonstrate how to overcome one of the main limitations of today's Internet by introducing the major steps required for user-centric network orchestration. Finally, we show conceptual prospects for realizing these steps by discussing a possible implementation with an inter-network architecture based on functional blocks. Springer Science+Business Media New York, 2014 Quality of experience nationallicence User-centric network orchestration nationallicence Application requirements nationallicence Network-application interface nationallicence Service composition nationallicence Zinner Thomas Institute of Computer Science, University of Würzburg, Würzburg, Germany aut Hoßfeld Tobias Institute of Computer Science, University of Würzburg, Würzburg, Germany aut Fiedler Markus Blekinge Institute of Technology, Dept. of Communication, Karlskrona, Sweden aut Liers Florian Technical University of Ilmenau, Ilmenau, Germany aut Volkert Thomas Technical University of Ilmenau, Ilmenau, Germany aut Khondoker Rahamatullah University of Kaiserslautern, Kaiserslautern, Germany aut Schatz Raimund Telecommunications Research Center Vienna - FTW, Vienna, Austria aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/2(2015-01-01), 413-437 1380-7501 74:2<413 2015 74 11042 https://doi.org/10.1007/s11042-014-2072-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-014-2072-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zinner Thomas Institute of Computer Science, University of Würzburg, Würzburg, Germany aut NATIONALLICENCE 700 1- Hoßfeld Tobias Institute of Computer Science, University of Würzburg, Würzburg, Germany aut NATIONALLICENCE 700 1- Fiedler Markus Blekinge Institute of Technology, Dept. of Communication, Karlskrona, Sweden aut NATIONALLICENCE 700 1- Liers Florian Technical University of Ilmenau, Ilmenau, Germany aut NATIONALLICENCE 700 1- Volkert Thomas Technical University of Ilmenau, Ilmenau, Germany aut NATIONALLICENCE 700 1- Khondoker Rahamatullah University of Kaiserslautern, Kaiserslautern, Germany aut NATIONALLICENCE 700 1- Schatz Raimund Telecommunications Research Center Vienna - FTW, Vienna, Austria aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/2(2015-01-01), 413-437 1380-7501 74:2<413 2015 74 11042