Proactive DAD: A Fast Address-Acquisition Strategy for Mobile IPv6 Networks
IEEE Internet Computing
DualMAC: A soft handoff mechanism for real-time communications in secured WLANs
Computer Communications
Improving handover performance by switching between unicast and multicast addressing
IEEE Transactions on Wireless Communications
A dual re-authentication scheme for fast handoff in IEEE 802.11 wireless mesh networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Low-latency mobile IP handover based on active-scan link layer assisted FMIPv6
MSN'07 Proceedings of the 3rd international conference on Mobile ad-hoc and sensor networks
Cross-layer design for reducing handoff latency in mobile network
ICCSA'07 Proceedings of the 2007 international conference on Computational science and Its applications - Volume Part II
Enhanced fast handover for proxy mobile IPv6 in vehicular networks
Wireless Networks
Proceedings of the 7th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
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This study first reviews state-of-the-art fast handoff techniques for IEEE 802.11 or Mobile IP networks. Based on that review, topology-aided cross-layer fast handoff designs are proposed for Mobile IP over IEEE 802.1.1 networks. Time-sensitive applications, such as voice over IP (VoIP), cannot tolerate the long layer-2 plus layer-3 handoff delays that arise in IEEE 802.11/Mobile IP environments. Cross-layer designs are increasingly adopted to shorten the handoff latency time. Handoff-related layer-2 triggers may reduce the delay between layer-2 handoff completion and the associated layer-3 handoff activation. Cross-layer topology information, such as the association between 802.11 access points and Mobile IP mobility agents, together with layer-2 triggers, can be utilized by a mobile node to start layer-3 handoff-related activities, such as agent discovery, address configuration, and registration, in parallel with or prior to those of layer-2 handoff. Experimental results indicate that the whole handoff. delay can meet the delay requirement of VoIP applications when layer-3 handoff activities occur prior to layer-2 handoffs.