IP Multimedia Subsystem

About: IP Multimedia Subsystem is a research topic. Over the lifetime, 4398 publications have been published within this topic receiving 43698 citations.

A distributed multimedia database system

Abstract: A multiprocessor-based architecture is proposed for a heterogeneous multimedia database (HMD) system, in order to provide fast and transparent multimedia services. The design philosophy of this architecture is based on functional requirements imposed by the multimedia services. The model of the HMD architecture has four components: a network controller, multimedia servers, a communication network, and the user components. Each component is shown to be responsible for a subset of functions that are vital for providing the desired services. >

Using the Media Independent Information Service to Support Mobile Authentication in Fast Mobile IPv6

Abstract: We explore the use of the Media Independent Information Service (MIIS) in the IEEE 802.21 Media Independent Handover (MIH) framework to improve handover performance for Fast Mobile IPv6 by providing Authentication information. We explore the tradeoffs of Pre-Authentication before joining a new network versus authentication after connecting to a new network during a Fast Mobile IPv6 handover. We discuss our implementations of services available from the MIIS in simulation using the ns-2 simulation system and evaluate their performance.

Modular exposure of next generation network services to enterprises and testbed federations

Abstract: This paper describes how next generation network and IP multimedia subsystem services provided by Telco networks as well as testbeds and testbed federations can be used in a modular fashion to compose high level multimedia services The IP multimedia subsystem, specified by the 3rd generation partnership projects (3GPP and 3GPP2), was developed to address next generation network convergence challenges and end-user requirements As an all-IP overlay network architecture, it aims at providing a platform for provisioning services in a secure and controllable manner, merging the paradigms and technologies of the Internet with the cellular and fixed telecommunication worlds and was also adopted for the Next generation network architecture of ETSI TISPAN In this paper we will outline the requirements on service description, service discovery and service orchestration in next generation networks and distributed testbed environments We will further describe how to make use of service building blocks to expose network functionalities towards higher service abstraction layers We will finally display our findings in the light of the Open SOA Telco Playground, one of the Fraunhofer FOKUS testbeds that represents today a first approach to the practical implementation of the ideas described