A seamless handoff mechanism for DHCP-based IEEE 802.11 WLANs

Jen-Jee Chen*, Yu-Chee Tseng, Hung Wei Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


IEEE 802.11 wireless networks have gained great popularity. However, handoff is always a critical issue in this area. In this paper, we propose a novel seamless handoff mechanism for IEEE 802.11 wireless networks which support IEEE 802.11i security standard. Our approach consists of a Dynamic Tunnel Establishing procedure and a seamless handoff mechanism. Both intra- and inter-subnet handoff cases are considered in our seamless handoff approach. Our work focuses on handoffs in DHCP-based IP networks rather than Mobile IP-supported networks, but the proposed scheme can be easily tailored to Mobile IP-supported networks.

Original languageEnglish
Pages (from-to)665-667
Number of pages3
JournalIEEE Communications Letters
Issue number8
StatePublished - 1 Aug 2007


  • DHCP (Dynamic Host Configuration Protocol)
  • Dynamic tunnel
  • IEEE 802.11i
  • Seamless handoff
  • Wireless network

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