Predictive Channel Scanning over WLAN

Author

Yu Xue-gang ; She Yan-xi ; Li Bin ; Lei Lingyin ; Lang Shufen

Author_Institution

Coll. of Comput. Sci. & Technol., Jilin Univ. Changchun, Changchun, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

Channel scanning delay is dominant in the handoff delay of the MAC layer over WLAN. It´s important for improving the QoS performance of WLAN. This paper designed a simple mobile handoff prediction algorithm and proposed a new channel scanning theme based on the information of mobile handoff prediction. The channel scanning algorithm is proved to be effective by performance analysis and simulation. If the accuracy of the handoff prediction can be guaranteed to some extent, it could reduce the channel scanning delay greatly compared with basic active scanning.

Keywords

access protocols; mobile radio; quality of service; wireless LAN; wireless channels; MAC layer; QoS performance; WLAN; handoff delay; mobile handoff prediction algorithm; predictive channel scanning algorithm; Analytical models; Authentication; Computer science; Delay effects; Educational institutions; Performance analysis; Prediction algorithms; Probes; Switches; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5302063

Filename

5302063