RT Journal Article
T1 Supporting mobility in an IMS-based P2P IPTV service: A proactive context transfer mechanism
A1 Vidal Fernández, Iván
A1 García Reinoso, Jaime José
A1 Oliva Delgado, Antonio de la
A1 Bikfalvi, Alex
A1 Soto Campos, Ignacio
AB 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.
PB Elsevier
SN 0140-3664
YR 2010
FD 2010-09
LK https://hdl.handle.net/10016/20033
UL https://hdl.handle.net/10016/20033
LA eng
NO This article has been partially granted by the Spanish MECthrough the CONPARTE project (TEC2007–67966-C03–03/TCM)and by the Madrid Community through the MEDIANET project(S-2009/TIC-1468).
DS e-Archivo
RD 27 jul. 2024