Experimental study of mismatching ESS-subnet handoffs on IP over IEEE 802.11 WLANs

Author

Yen, Li-Hsing ; Chang, Hung-Hsin ; Tsao, Shiao-Li ; Hung, Chia-Chi ; Tseng, Chien-Chao

Author_Institution

Dept. of Comput. Sci. & Inf. Eng., Nat. Univ. of Kaohsiung, Kaohsiung, Taiwan

fYear

2011

fDate

24-26 May 2011

Firstpage

1

Lastpage

5

Abstract

To support delay-sensitive applications on IP over wireless LAN (WLAN), both layer-2 handoff (L2H) and layer-3 handoff (L3H) must be conducted efficiently. Prior studies toward a fast L2H/L3H assume simple networking environments where Extended Service Set (ESS) exactly matches subnets. This paper identifies performance issues associated with inter-ESS L2Hs and L3Hs under mismatching ESS-subnet configurations, and analyzes actual performance impact on existing systems. Experimental results show that inter-ESS L2Hs are much time expensive than intra-ESS L2Hs while mismatching ESS-subnet settings lead to either time-consuming L3H detections or redundant L3H executions. We also discuss possible remedies for this problem.

Keywords

IEEE standards; IP networks; computer network management; wireless LAN; IEEE 802.11 WLAN; IP over wireless LAN; extended service set; layer-2 handoff; layer-3 handoff; mismatching ESS-subnet handoffs; wireless local area network; Authentication; Delay; IEEE 802.11 Standards; IP networks; Mobile communication; Probes; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Optical Communications Networks (WOCN), 2011 Eighth International Conference on

Conference_Location

Paris

ISSN

Pending

Print_ISBN

978-1-4577-0262-4

Type

conf

DOI

10.1109/WOCN.2011.5872938

Filename

5872938