Smart Proactive Caching Scheme for Fast Authenticated Handoff in Wireless LAN

Handoff in IEEE 802.11 requires the repeated authentication and keyexchange procedures, which will make the provision of seamless servicesin wireless LAN more difficult. To reduce the overhead, the proactivecaching schemes have been proposed. However, they require too manycontrol packets delivering the security context information to neighboraccess points. Our contribution is made in two-fold: one is asignificant decrease in the number of control packets for proactivecaching and the other is a superior cache replacement algorithm.