2006 · 78 citations · 7 references
ComputingElectrical EngineeringInformation TechnologyDigital CommunicationMobile ComputingWireless CommunicationsHandover ManagementMobile Ad Hoc NetworksMobile NetworkingMobile NetworksWireless Communication ProtocolsWireless NetworksAccess PointsBuffering MechanismsFast HandoverFrame BufferingFrame ForwardingHandover DelayNeighbor RelationsPacket Loss Mitigation
Handoff is a critical issue in IEEE 802.11-based wireless networks. In this paper we propose a fast and seamless handoff solution for IEEE 802.11 wireless LAN with IAPP. It is based on a concept of neighbor graph, which describes the nearby access points (APs) that a mobile host (MH) may find. Then we further derive selective scanning with unicast in power-save mode, pre-registration of IAPP, and frame forwarding-and-buffering mechanisms. Selective scanning allows a MH to only try potential handoff targets. Pre-registration allows early transfer of a MH's security context from its old AP to new AP. The forwarding-and-buffering mechanism is to solve the packet loss problem during handoff. Our performance evaluation shows that the proposed solution can result in 90% reduction in the handoff latency from standard handoff procedure
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Reducing MAC layer handoff latency in IEEE 802.11 wireless LANs
Sangho Shin, Andrea Forte, Anshuman Singh Rawat et al. · 2004 · 250 citations
Computing, Electrical Engineering, Information Technology +15
Location-based fast handoff for 802.11 networks
Chien‐Chao Tseng, Kuang-Hui Chi, Ming-Deng Hsieh et al. · IEEE Communications Letters · 2005 · 84 citations