An Efficient Scanning Group and Order Decision Method Using Neighbor Network Information in Wireless LAN 


Vol. 35,  No. 2, pp. 142-152, Feb.  2010


PDF
  Abstract

When a mobile station(MS) performs a handover, in the IEEE 802.11 WLAN, MS's channel scanning for discovering new available APs is the dominating factor in handover latency, accounting 90% of overall latency. In order to reduce such a scanning latency, we focus on the method for reducing the number of channels for the MS in handover process to scan. With the help of IEEE 802.21 information server(IS), a proper order of groups of channels to be scanned is offered by the current AP depending on the information of neighbor APs in terms of the distance from serving AP, traffic load and network topology. By using this scanning order, the passive scanning of a MS in normal operation enables the MS to filter out the unavailable channels, and thus to classify the candidate channels of neighbor APs into three groups. Then, a handover-imminent MS can perform the active scanning from the most reliable group of channels. Simulation results show that the proposed scanning scheme reduce the scanning latency in comparison with the conventional scheme.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

D. Kang, J. Choi, S. Yoo, "An Efficient Scanning Group and Order Decision Method Using Neighbor Network Information in Wireless LAN," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 2, pp. 142-152, 2010. DOI: .

[ACM Style]

Dong-Wan Kang, Jae-Kark Choi, and Sang-Jo Yoo. 2010. An Efficient Scanning Group and Order Decision Method Using Neighbor Network Information in Wireless LAN. The Journal of Korean Institute of Communications and Information Sciences, 35, 2, (2010), 142-152. DOI: .

[KICS Style]

Dong-Wan Kang, Jae-Kark Choi, Sang-Jo Yoo, "An Efficient Scanning Group and Order Decision Method Using Neighbor Network Information in Wireless LAN," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 2, pp. 142-152, 2. 2010.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880