Title :
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
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;
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
DOI :
10.1109/WICOM.2009.5302063
