A Fast and Efficient Authentication Protocol for a Seamless Handover between a WLAN and WiBro

A wireless network has a handover problem between heterogeneous or homogeneous network entitles. We describe in this paper a handover scenario between a WLAN and a WiBro network and propose a fast and efficient authentication scheme for the handover between a WLAN and a WiBro. In the scheme, a Serving Network(SN) plays a key distribution center role so that the Mobile Node (MN) can be quickly associated to a Target Nerwork(TN) before starting a full authentication scheme where a remote Authentication Center (AC) is involved.