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Supporting mobility in an IMS-based P2P IPTV service: a Proactive Context Transfer mechanism

Vidal, Ivan and García-Reinoso, Jaime and De la Oliva, Antonio and Bikfalvi, Alex and Soto, Ignacio (2010) Supporting mobility in an IMS-based P2P IPTV service: a Proactive Context Transfer mechanism. [Journal Articles]

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Abstract

In recent years, IPTV has received an increasing amount of interest from the industry, commercial providers and the research community, alike. In this context, standardization bodies, such as ETSI and ITU-T, are specifying the architecture of IPTV systems based on IP multicast. An interesting alternative to support the IPTV service delivery relies on the peer-to-peer (P2P) paradigm to distribute and push the streaming effort towards the network edge. However, while P2P IPTV was studied in fixed access technologies, there has been little attention paid to the implications arising in mobile environments. One of these involves the service handover when the user moves to a different network. By analyzing previous work from the perspective of an IPTV service, we concluded that a proactive approach is necessary for the handling of inter-network handovers. In this paper, we propose a new general handover mechanism for the IP Multimedia Subsystem (IMS), while studying its applicability to a P2P IPTV service. Our solution, called Proactive Context Transfer Service, incorporates the existing IEEE 802.21 technology in order to minimize the handover delay. The proposal is validated by comparing it against solutions derived from previous work.

Item Type: Journal Articles
Uncontrolled Keywords: IP Multimedia Subsystem (IMS), Peer-to-Peer (P2P), Mobile IP (MIP), Television over IP (IPTV), IEEE 802.21
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Depositing User: Acosta Angel
Date Deposited: 16 Feb 2012 10:50
Last Modified: 30 Jan 2015 16:40
URI: http://eprints.networks.imdea.org/id/eprint/128

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