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http://dx.doi.org/10.3745/KIPSTC.2011.18C.3.187

VirtFrame: A Sniffing-based Throughput Estimation Scheme in IEEE 802.11 Wireless LANs  

Seo, Sung-Hoon (Columbia University 컴퓨터과학과)
Baek, Jae-Jong (연세대학교 컴퓨터과학과)
Kim, Dong-Gun (연세대학교 컴퓨터과학과)
Song, Joo-Seok (연세대학교 컴퓨터과학과)
Publication Information
The KIPS Transactions:PartC / v.18C, no.3, 2011 , pp. 187-194 More about this Journal
Abstract
IEEE 802.11 wireless LAN has become the center of attention for one of the most dominant wireless networking technologies nowadays. In densely deployed wireless LANs, mobile stations are exposed to a number of AP, thus it is needed to select the best AP to associate with. The most common approach is to select the AP with the highest received signal strength. However it does not consider traffic load imposed to each AP so that it may cause the poor network performance. Therefore, in this paper, we propose a throughput estimation scheme for neighboring APs by sniffing the traffic within 802.11 networks. We devise a tool, named "VirtFrame", which is to estimate the station's capable throughput from neighbor APs based on the channel access time by virtually combining the sniffed frames. Simulation results show that our proposed scheme well matches that there exists correlation between the channel access time and the actual throughput of the APs.
Keywords
IEEE 802.11; WLAN; Throughput estimation;
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