Title :
A Seamless Handoff Mechanism for DHCP-Based IEEE 802.11 WLANs
Author :
Chen, Jen-Jee ; Tseng, Yu-Chee ; Lee, Hung-Wei
Author_Institution :
Nat. Chiao-Tung Univ., Chiao-Tung
fDate :
8/1/2007 12:00:00 AM
Abstract :
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.
Keywords :
IP networks; mobile computing; protocols; wireless LAN; DHCP-based IP networks; Dynamic Host Configuration Protocol; IEEE 802.11 WLAN; IP networks; dynamic tunnel establishing procedure; inter-subnet handoff; intra-subnet handoff; mobile IP-supported networks; seamless handoff mechanism; Access protocols; Authentication; Computer science; Delay; IP networks; Network servers; Streaming media; Web and internet services; Wireless application protocol; Wireless networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.070588
