標題: Fast Handoff among IEEE 802.11r Mobility Domains
作者: Chi, Kuang-Hui
Tseng, Chien-Chao
Tsai, Ya-Hsuan
資訊工程學系
Department of Computer Science
關鍵字: wireless local area network;fast handoff;preauthentication;IEEE 802.11r;IEEE 802.11i
公開日期: 1-七月-2010
摘要: This paper deals with secure fast handoff among access points (APs) of different IEEE 802.11r mobility domains. We leverage standard IEEE 802.11i mechanisms to let a station preauthenticate and establish a pairwise transient key with some target AP beforehand. Upon reassociation, the new AP aware of the preauthenticated station can thus complete handoff sooner than would otherwise be required. In order to resolve target APs timely, we introduce a location server that maintains network topology of an autonomous system covering multiple mobility domains. The location server assesses with which AP(s) the mobile station may reassociate next using its migration tendency. Accordingly the station is instructed to preauthenticate with fewer potential next APs than unnecessary. Performance discussions indicate that our proposal is effective in practice. Our approach is not only complementary to emerging IEEE 802.11r-based techniques but also useful to any network-layer fast handoff schemes for streamlined communication.
URI: http://hdl.handle.net/11536/5206
ISSN: 1016-2364
期刊: JOURNAL OF INFORMATION SCIENCE AND ENGINEERING
Volume: 26
Issue: 4
起始頁: 1345
結束頁: 1362
顯示於類別:期刊論文


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