Improving the latency of 802.11 hand-offs using neighbor graphs
Proceedings of the 2nd international conference on Mobile systems, applications, and services
SNC: a selective neighbor caching scheme for fast handoff in IEEE 802.11 wireless networks
ACM SIGMOBILE Mobile Computing and Communications Review - Special Issue on Medium Access and Call Admission Control Algorithms for Next Generation Wireless Networks.: The Digital Library version of this issue has a corrected special issue title compared to the one in the print version of the issue.
IEEE 802.11 Handovers Assisted by GPS Information
WIMOB '06 Proceedings of the 2006 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
Secure handoffs for V2I communications in 802.11 networks
Proceedings of the 10th ACM symposium on Performance evaluation of wireless ad hoc, sensor, & ubiquitous networks
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The IEEE 802.11p-based wireless access networks are about to be deployed by major highways around the world as one of the main information hauling infrastructure for ITS safety applications. As the most applications of the IEEE 802.11p standard require the delivery of short text-based messages, the standard does not support handover between adjacent Road-side Units (RSUs). However, demand for seamless real-time services such as short video clips of CCTVs on a highway gives rise to support for handover in the IEE 802.11p-based wireless access systems. In this paper, we describe a seamless handover scheme for an IEEE 802.11p-based wireless access system that takes advantage of the fixed-order placement of the RSUs and unidirectional movement of the vehicles along the highways. More specifically, this handover scheme utilizes the IEEE 802.11 disassociation message as to signal the old RSU of an On-broad Unit's (OBU) departure from its coverage area. The subsequent downstream data frames can be proactively forwarded to the new RSU for delivery to the OBU after its link establishment with the new RSU. Simulation results show superior performance of the proposed scheme compared to a poll-based scheme.