A fast authentic handover scheme for WLAN-3GPP interworking network

With the rapid development of wireless communication, it is an inevitable trend that WLAN as a wireless access mode will integrate with 3GPP system and form the interworking network. How to realize the fast and authentic handover scheme of WLAN-3GPP interworking network becomes one of the focus issues in this field. In view of the weaknesses of existing handover schemes, this paper proposes an improved fast and authentic handover scheme, the basic idea is adding management server (MS) in the existing architecture, which can enhance the security and efficiency of handover. This improved scheme also considers other comprehensive factors, such as load balance, handover time delay and operator manageability, and so on. Through the performance analysis, the results show that the performance can satisfy the developing requirement of WLAN-3GPP interworking handover.