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In this paper we firstly proved that mobile IP protocols are designed for mobility but not for session continuity. In contradiction, mSCTP (mobile stream control transmission protocol) appears to be the best protocol with regard to session continuity support, however it does not support location management mechanisms, thus context-aware QoS as well as other mechanisms based on knowledge of location...
Session initiation protocol (SIP) has already been accepted as the multimedia control signaling standard in ubiquitous wireless network by IETF and 3GPP etc. However, the handover procedure with SIP suffers from undesirable delay for real-time multimedia applications in WLAN. Moreover, the existing handover management protocols are not sufficient to guarantee handover of VoIP session in WLAN. In this...
An evolving wireless world is constantly providing users with a wider set of access technologies to choose from, each with different capabilities and properties. In this world, IMS as defined by 3GPP provides an enabling, standardized multimedia architecture that is access independent, hence, providing service convergence. This trend is accompanied by an increasing number of multimode terminals so...
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