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检索条件"任意字段=International Conference on IP Multimedia Subsystem Architecture and Applications"

共 839 条记录，以下是311-320 订阅

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Cross Layer Design of Application-level Resource Management Interfaces

Cross Layer Design of Application-level Resource Management ...

引用

2nd international Workshop on Cross Layer Design

作者： Pencheva, Evelina Atanasov, Ivaylo Marinska, Dora Tech Univ Sofia Fac Telecommun Sofia Bulgaria

ISBN: (纸本)9781424433018

Different multimedia applications have different characteristics and properties which determine specific quality of service (QoS). For QoS purposes the application functions may interact with the resource management function or rely on the service control functions. The optimal utilization of network resources implies cross-layer approach to resource management that allows third part), application control also. Third party applications can access QoS control functions through application programming interfaces (APIs). The paper presents a definition approach to Application-level Resource Management APIs that are Open Service Access (OSA) compliant. The API definition is based on the resource control procedures defined in the Policy and Charging Control architecture for ip multimedia subsystem (IMS).

关键词： ip multimedia subsystem Open Service Acces resource management

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Push mail: A real case of ip Convergence in NGN networks

Push mail: A real case of IP Convergence in NGN networks

引用

2009 IEEE 70th Vehicular Technology conference Fall, VTC 2009 Fall

作者： Letaifa, Asma Ben Tabbane, Sami MEDIATRON Sup'Com Tunisie Tunisia

ISBN: (纸本)9781424425150

The ip multimedia subsystem (IMS) is a network functional architecture that is seen as a promising solution for facilitating multimedia service creation and deployment, as well as supporting interoperability and network convergence. The aim of this paper is to present the overall IMS architecture and protocols, as well as the related stakes. Section 2 deals with IMS architecture and ip services. Section 3 gives some developed applications and elucidates push technology and why it has been used in developing mobile email application. The final section presents an outline and the structure of developed Push email application. © 2009 IEEE.

关键词： multimedia services

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iRide: A Cooperative Sensor and ip multimedia subsystem Based architecture and Application for ITS Road Safety

iRide: A Cooperative Sensor and IP Multimedia Subsystem Base...

引用

1st international ICST conference on Communications Infrastructure, Systems and applications in Europe

作者： Elkotob, Muslim Osipov, Evgeny Lulea Univ Technol Dept Comp Sci & Elect Engn SE-97187 Lulea Sweden

ISBN: (纸本)9783642112836

In this paper we present iRide (intelligent ride), an IF multimedia subsystem (HAS) application for warning drivers about hazardous situations on the road. iRide takes real-time information about road conditions and traffic situations from a wireless sensor network installed directly in the road surface. Upon logging to the iRide system, users start to receive periodic updates about the situation on the road along their route ahead. iRide is able to predict hazardous situations like slippery surface or dangerous distance to the nearest car and help drivers avoid accidents. We describe the service and the supporting network architecture of iRide. We discuss the major challenges associated with designing an IMS application for ITS, an intelligent transport system. Having a prototype implementation working on a small scale, we take it to the next step to perform system dimensioning and then verify the feasibility of having such a system using OPNET simulations.

关键词： Network architecture

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The setup of national ip multimedia subsystem (IMS) testbed - Approach and challenges

The setup of national IP Multimedia Subsystem (IMS) testbed ...

引用

2009 international conference on Information Networking, ICOIN 2009

作者： Choong, Khong Neng Abbas, Mazlan Mohd Said, Osman Lee, Cheng Suan Mohamed, Rajina Raj Wireless Technology and Architecture Wireless Communication Cluster Mimos Berhad Malaysia

ISBN: (纸本)9788996076131

ip multimedia subsystem (IMS) defines a unified framework that enables convergence of voice, video, data and mobile network technology over an ip-based infrastructure. It is regarded as the standard service delivery platform for providing multimedia applications in the Next Generation Network (NGN). Despite all the hypes, the adoption, support and interest on IMS are still protracted among operators, service providers, device manufacturers and developers. We believe one of the main reasons for the delay is that these parties felt uncertain on IMS over the setup cost, and were generally trapped in a vicious circle, where one party depends on another to initiate and commit their support on IMS. As the national research institute in Malaysia, we have taken the challenge to break the vicious circle, and committed to build and provide an IMS Center of Excellence (CoE) as testbed for all parties to conduct their application development, experiments and interoperability tests. This paper describes the objectives and benefits of establishing our IMS testbed, our approach to break the vicious circle, the formation and responsibility of an NGN/IMS workgroup (WG), and the specifications and focus of our IMS testbed.

关键词： Testbeds

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On Total Call Setup Waiting Time Probability Distribution in IMS Signaling Network

On Total Call Setup Waiting Time Probability Distribution in...

引用

3rd international conference on Next Generation Mobile applications, Services, and Technologies

作者： Amooee, A. M. Falahati, Abolfazl Iran Univ Sci & Technol Digital Commun & Control Syst Lab Tehran Iran

ISBN: (纸本)9780769537863

This paper, in accordance with the authors' continuing research investigates the effect of adding extra servers in Session Initiation Protocol (Sip) signaling network on session setup delay in the ip multimedia subsystem (IMS). The effect of applying more than one server in reducing waiting time in each of the nodes of the system is previously investigated by the authors in 131 and applying more servers as a way of overcoming overload in IMS is addressed in [4]. In this contribution, the delay analysis is explored by describing the Sip signaling traffic with M/M/r notation. Then the Sip servers overload problem is addressed and the effect of adding servers on network throughput and call loss probability is investigated. Finally, the total waiting time probability distribution is derived.

关键词： ip multimedia subsystem Session Initiation Protocol Multi-server Queuing systems Call Setup Waiting Time Probability Distribution

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Lightweight conferencing enabler for multiparty applications in the IMS

Lightweight conferencing enabler for multiparty applications...

引用

3rd international conference on Next Generation Mobile applications, Services, and Technologies

作者： Hernandez, Alberto Vazquez, Enrique Capelastegui, Pedro Gonzalez, Francisco Univ Politecn Madrid ETS Ing Telecomunicac E-28040 Madrid Spain

ISBN: (纸本)9780769537863

The ip multimedia subsystem (IMS) brings more functionality into communication networks and allows them to offer a range of services beyond the mere transport of media. IMS standard multiparty services include audiovisual conferencing and Push To Talk (PTT/PoC), which are powered by specific (and expensive) servers performing media handling functions in a centralized manner. These multiparty services mimic traditional telecommunication services and are specialized in audio and video conferencing. This approach lacks the flexibility to provide innovative multiparty applications that require custom media or distributed topologies. For example, an online game may include voice communication among players, but it requires additional means to communicate the game state among players. applications of this kind have to rely on custom servers to provide multiparty functionality and would benefit from a common, media-agnostic, conferencing framework in the IMS. This paper focuses on providing generic multiparty functionality in the IMS by making the most of the XML Document Management (XDM) services: group management, event delivery and search functions. The paper describes a lightweight enabler implemented on top of the XDM that supports distributed applications in the IMS.

关键词： IMS service architecture Innovative services on IMS Application Servers Real-time multimedia applications

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Self organizing ip multimedia subsystem

Self organizing IP multimedia subsystem

引用

2009 IEEE international conference on Internet multimedia Services architecture and applications, IMSAA 2009

作者： Dutta, Ashutosh Makaya, Christian Das, Subir Chee, Dana Lin, Joe Komorita, Satoshi Chiba, Tsunehiko Yokota, Hidetoshi Schulzrinne, Henning Telcordia Technologies NJ United States KDDI Labs Japan Columbia University New York NY United States

ISBN: (纸本)9781424447923

While there have been tremendous efforts to develop the architecture and protocols to support advanced Internet-based services over 3G and 4G networks, IMS is far from being deployed in a wide scale manner. Effort to create an operator controlled signaling infrastructure using ip-based protocols has resulted in a large number of functional components and interactions between those components. Thus, the carriers are trying to explore alternative ways to deploy IMS that will allow them to manage their network in a cost effective manner while offering the value-added services. One of such approaches is self organization of IMS. The self organizing IMS can enable the IMS functional components and corresponding nodes to adapt them dynamically based on the features like network load, number of users and available system resources. This paper introduces such a self organizing and adaptive IMS architecture, describes the advanced functions and demonstrates the initial results from the prototype test-bed. In particular, we show how all IMS functional components can be merged and split among different nodes as the network demand and environment change without disrupting the ongoing sessions or calls. Although it is too early to conclude the effectiveness of self organizing IMS, initial results are encouraging and it may provide additional incentives to the operators for network evolution. © 2009 IEEE.

关键词： Network architecture

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OpenFMC™ Lab: The Convergence Platform for Next Generation applications Development

OpenFMC™ Lab: The Convergence Platform for Next Generation ...

引用

3rd IEEE international conference on Digital Ecosystems and Technologies

作者： Choong, Khong Neng Abbas, Mazlan Wireless Technology and Architecture Wireless Communication Cluster MIMOS Berhad Malaysia

ISBN: (纸本)9781424423453

Fixed-Mobile Convergence (FMC) is the term used to describe a wide range of mobile services that converge elements of fixed communications infrastructure to complement the core mobile service. ip multimedia subsystem (IMS) is the approach towards merging the fixed and mobile worlds together with the Internet. It enables the efficient provision of an open set of highly integrated multimedia services, combining web browsing, instant messaging, presence, Voip and multimedia content delivery etc. over a heterogeneous access network and technologies. Unfortunately, the adoption, support and interest on IMS are still protracted among various players such as operators, service providers, device manufacturers and developers. We believe these players were generally trapped in a vicious circle and hence felt uncertain on adopting IMS, besides having to accommodate the high setup cost, lack of proven business models and further was overshadowed by the web technologies. As the national research institute in Malaysia, we have taken the challenge to set up the OpenFMC (TM) lab in Malaysia as to break the vicious circle and to develop an IMS Center of Excellence (CoE) ecosystem through opening up an IMS testbed for all parties to conduct their application development, R&D experiments and interoperability tests. This paper describes the objectives and benefits of establishing our OpenFMC (TM) lab, our approach to break the vicious circle, our proposed IMS ecosystem program, the details on provisioning of lab equipments/components, and network topology.

关键词： Ecosystems

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IMS Service Broker Feasibility Study in 3GPP Release 8 (Industrial Report)

IMS Service Broker Feasibility Study in 3GPP Release 8 (Indu...

引用

10th international conference on Feature Interactions in Telecommunications and Software Systems

作者： Lin, Fuchun Joseph Morera, Raquel Telcordia Technol Piscataway NJ 08854 USA

ISBN: (纸本)9781607500148

The 3rd Generation Partnership Project (3GPP) is the wireless standards development organization setting the standards for evolving mobile broadband beyond the Global System for Mobile communication (GSM). The ip multimedia subsystem (IMS) is an architectural framework standardized by the 3GPP for delivering ip multimedia services based on the IETF Session Initiation Protocol (Sip). As the integration of multiple ip multimedia applications via resolving their interactions is an important requirement for the IMS, the 3GPP Services and System Aspects Working Group 2 (SA2) launched a feasibility study on enhancing IMS for better service interaction management in Release 8. This paper reports some important results of this feasibility study from 2006 to 2008 under 3GPP TR 23.810. It describes an incremental enhancement to IMS service control to enable dynamic service interaction management. Several examples we contributed to TR 23.810 are presented in this report to illustrate the ideas. Finally, the report points out open issues for further research in this area.

关键词： Dynamic Service Interaction Management Service Broker 3GPP ip multimedia subsystem (IMS) Session Initiation Protocol (Sip)

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3rd international conference on New Technologies, Mobility and Security, NTMS 2009

3rd International Conference on New Technologies, Mobility a...

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3rd international conference on New Technologies, Mobility and Security, NTMS 2009

ISBN: (纸本)9781424462735

The proceedings contain 97 papers. The topics discussed include: a compact routing scheme with lower stretch;a comprehensive reference architecture for trustworthy long-term archiving of sensitive data;a flexible routing decision framework to support diversified application-level data types in MANETs;a generic metadata framework for the indexation and the management of distributed multimedia contents;a network simulator for autonomic context-aware architecture;a new approach of mesh watermarking based on maximally stable meshes detection;a new energy-efficient, scalable and robust architecture for wireless sensor networks;a new implementation of a half-duplex decode-and-forward cooperative algorithm using complete complementary code sets;a novel lookup service enabler for presence-based applications and its architecture in the 3GPP ip multimedia subsystem;and a practical scheme to improve user satisfaction with reduced power in wireless networks.

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