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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.


Papers
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Proceedings ArticleDOI
13 Feb 2006
TL;DR: A novel architecture of Mobile Peer-to-Peer (MP2P) content sharing services in cellular networks based on Session Initiation Protocol that is part of the IP Multimedia Subsystem in third-generation cellular networks is presented.
Abstract: The demo presents a novel architecture of Mobile Peer-to-Peer (MP2P) content sharing services in cellular networks. The proposed solution is based on Session Initiation Protocol (SIP) that is part of the IP Multimedia Subsystem (IMS) in third-generation cellular networks. The concept has been implemented in C++ on the Symbian Series 60 platform. The conducted trial showed the feasibility of proposed approach and opens new room for development of scalable services in the mobile environment.

17 citations

Proceedings ArticleDOI
15 Aug 2001
TL;DR: This work proposes an efficient distributed synchronization algorithm for wireless and mobile multimedia systems to ensure and facilitate mobile clients' access of multimedia objects and reports on the performance results obtained using a discrete event simulation testbed developed.
Abstract: The advances in mobile computing and distributed multimedia systems allow mobile hosts (clients) to access wireless multimedia systems anywhere at anytime, but not without creating a new set of issues and trade-offs. To the best of our knowledge, there has been very little research done to deal with the synchronization problem in wireless and mobile multimedia systems. We propose an efficient distributed synchronization algorithm for wireless and mobile multimedia systems to ensure and facilitate mobile clients' access of multimedia objects. We describe our synchronization scheme, which we refer to as MoSync, its implementation, and report on the performance results that we have obtained using a discrete event simulation testbed we have developed. Our results indicate clearly that our synchronization scheme is a viable approach to a wireless multimedia environment.

17 citations

Patent
20 Jul 2007
TL;DR: A mobile station that is configured to facilitate coordination of supplementary services in a centralized fashion may include circuit-switched (CS) domain components that are configured to place voice telephone calls in a CS domain this paper.
Abstract: A mobile station that is configured to facilitate coordination of supplementary services in a centralized fashion may include circuit-switched (CS) domain components that are configured to place voice telephone calls in a CS domain. The mobile station may also include IP multimedia subsystem (IMS) components that are configured to place voice telephone calls in an IMS domain. The IMS components may include a transport component for facilitating communication with an IMS core network. The IMS components may also include a signaling component that is configured to exchange information with a centralized server on the IMS core network via the transport component. At least some of the information that is exchanged with the centralized server may be related to supplementary services for the voice telephone calls in the CS domain as well as the voice telephone calls in the IMS domain.

17 citations

Proceedings ArticleDOI
01 Dec 2008
TL;DR: A novel internal architecture for a centralized-SCIM to cater the needs of blended services in IMS networks is presented and a typical use case related to a media, entertainment and content provider enterprise have been chosen.
Abstract: Major success factor for the futuristic IP Multimedia Subsystem (IMS) based network is dynamically delivering a blend of one or more services simultaneously to the end-users based on their preferences and context. Such blended services, can range from triple play to dynamic context based services. To deliver such services 3GPP introduces a functional block called SCIM (service capability interaction manager). SCIM works at the service delivery layer and provides a capability to interact across various service capabilities and thereby enabling a framework to deliver a blended service. However to the best of authorspsila knowledge 3GPP has not detailed the roles and responsibilities of SCIM though it has envisioned its need. Moreover, the architectural details (distributed and centralized) of SCIM are kept open for finalization by scientific community or organization-based. In this paper, authors have presented a novel internal architecture for a centralized-SCIM to cater the needs of blended services in IMS networks. Authors study the proposed SCIM architecture by demonstrating a dynamic blended service. In this approach a blended service is represented in the form of an acyclic service graph where each node in the graph represents a service capability. Centralized-SCIM would choose one of the paths in the service graph dynamically resulting in delivering blended service. To demonstrate such functionality a typical use case related to a media, entertainment and content provider enterprise have been chosen. The call flow diagram for the proposed use case has been discussed.

17 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20235
202219
202124
202050
201971
201881