A SIP-SHIM6 Based Solution for Seamless Intra-Domain Mobility in IMS Networks
The context of the authors' work is mobile multi-homed terminals in a heterogeneous environment. They propose a solution for seamless terminal mobility in an intra-domain context. They combine a multi-homing protocol (SHIM6), which ensures seamless network change, with the IMS architecture, which allows the establishment of multimedia session with Quality of Service. Their proposal allows a mobile terminal to change its access network seamlessly, without any application disruption. To achieve this, they implement a Proxy-SIP inside the terminal to manage session establishment. The proposed scheme can manage access network change in two modes: reactive and proactive. A test-bed allowed one to show the feasibility of their approach and the gain obtained by considerably reducing the handover delay and, thus, data loss.