RT Journal Article
T1 TRIM: An architecture for transparent IMS-based mobility
A1 Vidal Fernández, Iván
A1 Soto Campos, Ignacio
A1 Oliva Delgado, Antonio de la
A1 García Reinoso, Jaime José
AB In recent years, the development and deployment of new wired and wireless access network technologies have made the ubiquitous Internet a reality. Users can access anywhere and anytime to the broad set of value-added Internet services, which are delivered by means of the IP protocol. In this context, 3GPP is currently developing the IP Multimedia Subsystem (IMS), as a key element that allows to evolve from the ubiquitous access to the Internet services towards a next generation network model, by providing a set of essential facilities such as session control, QoS, charging and service integration. Nevertheless, several open issues still need consideration before the future Internet becomes real, such as supporting user mobility in IP networks. Although mobility support in the Internet is receiving much attention, IMS networks present inherent particularities that require further analysis. The solutions proposed so far for IMS do not support mobility transparently to the end-user applications, or address the problem by introducing complex changes to the IMS infrastructure. This paper presents TRIM, an architecture for transparent IMS-based mobility. TRIM supports mobility in IMS networks transparently to the end-user applications, which are unaware of the handover management procedures executed between the mobile node and the network. We have performed several experiments with a TRIM prototype, using a real IMS testbed with 3G and WLAN access networks, validating the proposal for UDP and TCP based applications.
PB Elsevier
SN 1389-1286
YR 2011
FD 2011-05
LK https://hdl.handle.net/10016/20011
UL https://hdl.handle.net/10016/20011
LA eng
NO This article has been partially granted by the EuropeanCommunity Seventh Framework Programme (FP7/2007-2013) under grant agreement 214994 (CARMEN project),and by the Madrid Community through the MEDIANETproject (S-2009/TIC-1468).
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RD 29 jun. 2024