How to construct random functions
Journal of the ACM (JACM)
Vertical handoffs in wireless overlay networks
Mobile Networks and Applications - Special issue: mobile networking in the Internet
Real 802.11 Security: Wi-Fi Protected Access and 802.11i
Real 802.11 Security: Wi-Fi Protected Access and 802.11i
Fast authentication methods for handovers between IEEE 802.11 wireless LANs
Proceedings of the 2nd ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Efficient mobility management for vertical handoff between WWAN and WLAN
IEEE Communications Magazine
Seamless handover in terrestrial radio access networks: a case study
IEEE Communications Magazine
An effective seamless connectivity scheme for ubiquitous applications
Proceedings of the 6th International Conference on Advances in Mobile Computing and Multimedia
A proxy based authentication localisation scheme for handover between non trust-associated domains
ACM SIGMOBILE Mobile Computing and Communications Review
5G: Service Continuity in Heterogeneous Environments
Wireless Personal Communications: An International Journal
SAM: secure access of media independent information service with user anonymity
EURASIP Journal on Wireless Communications and Networking
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802.11 standards support high data rates for a low price and thus provides an economical way for WLANs. On the other hand, 3G standards offer a much wider area of coverage that enables ubiquitous connectivity. The integration of them takes advantages from both sides and offers the possibility of achieving anywhere, anytime cost-efficient Internet access. To facilitate such integration, seamless vertical handoff is one of the major challenges because it needs to make physical movement transparent to mobile users and preserves application-level connectivity. Previous works did not consider the impact of authentication mechanisms on the performance of vertical handoff, especially on its delay. In a 3G-WLAN integration environment, since 3G and WLAN may use different authentication servers, when a mobile terminal hands over across them, certain authentication procedure needs to be performed. According to the literature, such authentication delay may be as high as hundreds of milliseconds, which is intolerable for delay-sensitive applications. We present seamless authentication protocols (SAPs) for vertical handoff in wireless heterogeneous networks, to reduce this delay. Simulation results show that SAP significantly reduces the delay caused by authentication procedures in vertical handoff.