Secured Seamless Convergence across Heterogeneous Access Networks
نویسندگان
چکیده
Dual-mode handsets and multimode terminals are generating demand for solutions that enable convergence and seamless handover across heterogeneous access networks. The IEEE 802.21 working group is creating a framework that defines a Media Independent Handover Function (MIHF), facilitates the handover across heterogeneous access networks and help mobile users to experience a better performance during seamless handover. We also summarize a Media-independent Pre-Authentication (MPA) mechanism currently under discussion within the IETF and can be used to optimize handover performance. We present the 802.21 framework and the MPA technique and show how they can be integrated to improve the handover performance. We also describe a test-bed implementation and discuss experimental handover performance results of an 802.21-based approach in conjunction with MPA.
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