Location-based fast handoff for 802.11 networks

Chien-Chao Tseng*, Kuang Hui Chi, Ming Deng Hsieh, Hung Hsing Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


This paper presents a location-based approach that reduces handoff overhead in IEEE 802.11 networks. With this approach, a mobile station (MS) can derive the prospective access points (APs) most likely to be visited next, using the current location and the AP topology information acquired from some designated server. The server also provides parameters for AP (re)association so that the MS can re-associate with an AP directly without a probe beforehand. Further along the movement orientation, the MS can resolve a likely set of APs for pre-authentication or proactive key distribution purposes. The performance evaluation indicates that our approach is promising.

Original languageEnglish
Pages (from-to)304-306
Number of pages3
JournalIEEE Communications Letters
Issue number4
StatePublished - 1 Apr 2005


  • IEEE 802.11
  • Pre-authentication
  • Predictive handoff
  • Robust security network
  • Wireless local area network


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