AP Selection Algorithm for Real-Time Communications through Mixed WLAN Environments

Morioka, Yuhei; Higashino, Takeshi; Tsukamoto, Katsutoshi; Komaki, Shozo

doi:10.1093/ietcom/e91-b.10.3077

Cited by 1 publication

(1 citation statement)

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“…Chen et al proposed estimating traffic load of an AP by sending a probe request frame and measure the delay until probe response frame is received [3]. Some existing AP selection mechanisms require a modification protocol stack in an AP to provide some information for its STAs [4] [5]. But the modification is not encouraged because it is not compatible with previously deployed APs.…”

Section: Related Workmentioning

confidence: 99%

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

Seo¹,

Baek²,

Kim³

et al. 2011

The KIPS Transactions:PartC

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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.

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Section: Related Workmentioning

confidence: 99%