A Dual-Soft-Handoff Scheme for Fast Seamless Roaming in WLAN

Author

Qian Hong-yan ; Chen Bing ; Qin Xiao-lin

Author_Institution

Coll. of Info. Sci. & Tech., Nanjing Univ. of Aero. & Astro., Nanjing, China

Volume

2

fYear

2010

fDate

24-25 April 2010

Firstpage

97

Lastpage

100

Abstract

In recent years, wireless local area network (WLAN) has been deployed in many wireless applications. When the mobile node (MN) accesses different access points (AP), handoff latency may cause packet loss and result in serious problems in real-time applications. This paper proposes an efficient soft handoff scheme realized by dual-handoff. The MN maintains two active links to forward and backward APs respectively, and the handoffs are never simultaneous to ensure one data thoroughfare always existing. It achieves seamless data transmission during fast motion. Simulation results indicate that it´s at least feasible in WLAN while the MN moves at 120km/h.

Keywords

data communication; mobility management (mobile radio); wireless LAN; WLAN; backward access points; dual-soft-handoff scheme; fast seamless roaming; handoff latency; mobile node; packet loss; seamless data transmission; wireless local area network; Data communication; Delay; Educational institutions; Mobile communication; Monitoring; Multiaccess communication; Roaming; Time division multiple access; Wireless LAN; Wireless application protocol; Mobile Communication; Roaming; Seamless; Soft Handoff; WLAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks Security Wireless Communications and Trusted Computing (NSWCTC), 2010 Second International Conference on

Conference_Location

Wuhan, Hubei

Print_ISBN

978-0-7695-4011-5

Electronic_ISBN

978-1-4244-6598-9

Type

conf

DOI

10.1109/NSWCTC.2010.159

Filename

5480607