Zeitschriftenaufsätze
11 article in journal
Corici, M.; Fiedler, J.; Magedanz, T.; Vingarzan, D.:
Access network discovery and selection in the future wireless communication
Mobile networks and applications, Vol.16 (2011), 3, 337-349
The future wireless telecommunication environment is characterized by the co-existence of a multitude of wireless networks such as LTE, LTE-Advanced, UMTS, WiMAX, WiFi etc. In order to be able to offer the best connectivity, according to the requirements of the users and to the preferences of the operator, a novel functionality was introduced in the core network and in the mobile devices for access network discovery and selection. This paper introduces this functionality as standardized in the 3GPP Evolved Packet Core (EPC), highlighting its main concepts and technical scenarios. Further, a set of novel optimizations are presented and evaluated, followed by the description of their implementation as part of the Fraunhofer FOKUS OpenEPC toolkit.
11 article in journal
Simoes, J.; Magedanz, T.:
Contextualized User-Centric Multimedia Delivery System for Next Generation Networks
Telecommunication systems, Vol.48 (2011), 3, 301-316
Telecommunication and Internet services are constantly subject to changes, seeking the customer's full satisfaction. Enriching these services with innovative approaches such as context-aware, social, mobile, adaptable and interactive mechanisms enable users to experience a variety of personalized services seamlessly across different platforms and technologies. In this sense, Service Oriented Architectures play a central role in allowing component reuse and low cost service creation. Together with IP Multimedia Subsystem enable the convergence of telecommunications and web services, allowing the network transport technologies to be abstracted from the services above. By integrating these technologies, a number of synergies can be explored. Existing services can be easily enriched with context information, made available on a variety of networks and new services can be composed using previously existing building blocks. This paper explains how this integration can be achieved, and demonstrates the potentialities of this architectural paradigm with a prototype service.
11 article in journal
Wahle, S.; Tranoris, C.; Denazis, S.; Gavras, A.; Koutsopoulos, K.; Magedanz, T.; Tompros, S.:
Emerging testing trends and the Panlab enabling infrastructure
IEEE communications magazine, Vol.49 (2011), 3, 167-175
Networks, services, and business models need to be piloted in a large-scale environment that mimics as far as possible the Internet and its future version, although we certainly do not know what this will look like. In this highly demanding and dynamic context, new frameworks and (meta-) architectures for supporting experimentation are proposed, aiming at discovering how existing and emerging testbeds and experimental resources can be put together in such a way that testing and experimentation may be carried out according to specific requirements (industry, academia, etc.). The work presented in this article addresses a number of the fundamental principles and their corresponding technology implementations that enable the provisioning of large-scale testbeds for testing and experimentation as well as deploying future Internet platforms for piloting novel applications. The proposed concepts and architecture of Panlab, a pan-European testbed federation, aspires to facilitate and support user needs in these new areas.
11 article in journal
Simoes, J.; Wahle, S.:
The future of services in next generation networks
IEEE Potentials, Vol.30 (2011), 1, 24-29
11 article in journal
Rebahi, Y.; Thanh, T. Q.; Tong, M.; Lopez, F.; Lopez, J. M.; Teixeira, L. A.; Blanco, N.:
An IP based platform for emergency calls and reporting
International Journal of Critical Infrastructure Protection, Vol.4 (2011), 3-4
11 article in journal
Zhang, G.; Rebahi, Y.:
Side effects of identity management in SIP based VoIP environments
Information security technical report, Vol.16 (2011), 1, 29-35
11 article in journal
Rebahi, Y.; Nassar, M.; Magedanz, T.; Festor, O.:
A survey on fraud and service misuse in voice over IP (VoIP) networks
Information security technical report, Vol.16 (2011), 1
11 article in journal
Christakidis, A.; Efthymiopoulos, N.; Fiedler, J.; Dempsey, S.; Koutsopoulos, K.; Denazis, S.; Tombros, S.; Garvey, S.; Koufopavlou, O.:
VITAL++, a new communication paradigm: Embedding P2P technology in Next Generation Networks
IEEE communications magazine, Vol.49 (2011), 1, 84-91
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Lehrveranstaltungen
71 Vorlesung/Tutorial/Seminar
Radusch, I.; Smirnov, M.:
Advanced Internet Services: VL : Technische Universität Berlin
2011
Service-Oriented Network Architecture, Multimedia, Quality of Service, Internet housekeeping
71 Vorlesung/Tutorial/Seminar
Magedanz, T.:
AV Projekt NGN & FIT I: PJ : Technische Universität Berlin
2011
In diesem Projekt werden die in den AV Vorlesungen NGN und FIT erworbenen Kenntnisse durch praktische Programmieraufgaben vertieft. Dabei werden mit Blick auf Exzellenz und Nachhaltigkeit in kleinen Gruppen neue Komponenten, Schnittstellen, Anwendungen und Werkzeuge fuer die AV/FOKUS OSTP, Next Generation Mobile Networks und FI Testbeds entwickelt. Die genauen Themen sind der AV Homepage zu entnehmen unter www.av.tu-berlin.de.
71 Vorlesung/Tutorial/Seminar
Magedanz, T.:
AV Projekt NGN & FIT I: PJ : Technische Universität Berlin
2011
In diesem Projekt werden die in den AV Vorlesungen NGN und FIT erworbenen Kenntnisse durch praktische Programmieraufgaben vertieft. Dabei werden mit Blick auf Exzellenz und Nachhaltigkeit in kleinen Gruppen neue Komponenten, Schnittstellen, Anwendungen und Werkzeuge für NGN und FI Testbeds entwickelt die bei AV/Fraunhofer FOKUS zum Einsatz kommen. Die Technologien kommen aus den Bereichen Service Composition und Web Mash Ups, Identity and Policy Management, Converged Instant Messaging, IP-TV, Videostreaming, Infrastructure as a Service, Virtualisation.
71 Vorlesung/Tutorial/Seminar
Magedanz, T.:
AV Projekt NGN & FIT II: PJ : Technische Universität Berlin
2011
In diesem Projekt werden die in den AV Vorlesungen NGN und FIT erworbenen Kenntnisse durch praktische Programmieraufgaben vertieft. Dabei werden mit Blick auf Exzellenz und Nachhaltigkeit in kleinen Gruppen neue Komponenten, Schnittstellen, Anwendungen und Werkzeuge fuer die AV/FOKUS OSTP, Next Generation Mobile Networks und FI Testbeds entwickelt. Die genauen Themen sind der AV Homepage zu entnehmen unter www.av.tu-berlin.de.
71 Vorlesung/Tutorial/Seminar
Magedanz, T.:
AV Projekt NGN & FIT II: PJ : Technische Universität Berlin
2011
In diesem Projekt werden die in den AV Vorlesungen NGN und FIT erworbenen Kenntnisse durch praktische Programmieraufgaben vertieft. Dabei werden mit Blick auf Exzellenz und Nachhaltigkeit in kleinen Gruppen neue Komponenten, Schnittstellen, Anwendungen und Werkzeuge fuer die AV/FOKUS OSTP, Next Generation Mobile Networks und FI Testbeds entwickelt. Die genauen Themen sind der AV Homepage zu entnehmen unter www.av.tu-berlin.de.
71 Vorlesung/Tutorial/Seminar
Magedanz, T.:
Next Generation Networks Technologies & Services (NGN): VL : Technische Universität Berlin
2011
In dieser VL werden grundlegende Konzepte, Architekturen, Protokolle, und Schnittstellen von aktuellen und zukünftigen Offenen Dienstplattformen auf der Basis konvergierender Netzwerktechnologien wie drahtlose und drahtgebundene Telekommunikationsnetzwerke, Next Generation Networks (NGNs) und Next Generation Mobile Networks vorgestellt. Insbesondere werden vorgestellt: VoIP, das IP Multimedia Subsystem (IMS) , aktuelle Entwicklungen des Evolved Packet Core und das Zusammenspiel der grundlegenden Technologien: SIP, Diameter, SIP Server, Media Server, Application Server, Service Delivery Platforms wie Telco JSON APIs, Telco JSON APIs, IN/CAMEL, OSA/Parlay, JAIN Web2.0 Mash ups, etc.
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