The multimedia service session handoff method in heterogeneous wireless networks
by Yulong Shen; Qingqi Pei; Qijian Xu; Zhiwei Zhang
International Journal of Grid and Utility Computing (IJGUC), Vol. 3, No. 1, 2012

Abstract: The IP Multimedia Subsystem (IMS) can provide multimedia services between heterogeneous wireless networks. But the efficiency of the service session handoff will bring a significant impact to user experience. For the integration of heterogeneous wireless networks, we propose a Session Initiation Protocol (SIP) based multimedia service session handoff method named MS²HM. To reduce the handoff delay between heterogeneous wireless networks, the MS²HM uses the methods of advance registration and old-new address temporary matching. We modelled the node processing delay and network transmission delay, and analyse the total delay and the packet loss rate of the MS²HM. Specially, this paper contrastively analyses the handoff delay under different frame error control in the 3G-WLAN integrated network, and the result shows that MS²HM has lower handoff delay than the method proposed by Wedlund and Schulzrinne. The MS²HM can meet the low delay and low packet loss rate requirements of IMS service session handoff between heterogeneous wireless networks, and ensure the QoS of the IMS services.

Online publication date: Thu, 01-Mar-2012

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