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BEGIN:VEVENT
UID:64@lincs.fr
DTSTART;TZID=Europe/Paris:20160330T140000
DTEND;TZID=Europe/Paris:20160330T143000
DTSTAMP:20170313T170921Z
URL:https://www.lincs.fr/events/tbd-7/
SUMMARY:Passive Wi-Fi link Capacity Estimation on Commodity Access Points
DESCRIPTION:Wi-Fi is the preferred way of accessing the internet for many
 devices at home\, but it is vulnerable to performance problems due to
 sharing an unlicensed medium. In this work\, we propose a method to
 estimate the link capacity of a Wi-Fi link\, using physical layer metrics
 that can be passively sampled on commodity access points. We build a model
 that predicts the maximum UDP throughput a device can sustain\, extending
 previous models that do not consider IEEE 802.1n optimizations such as
 frame aggregation. We validate our method through controlled experiments in
 an anechoic chamber and artificially create different link quality
 conditions. We estimate the link capacity using our method and compare it
 to the state of the art. Over 95% of the link capacity predictions present
 errors below 5% when using our method with reference data. We show how the
 link capacity estimation enables Wi-Fi diagnosis in two case studies where
 we predict the available bandwidth under microwave interference and in an
 office environment.
CATEGORIES:Seminars
LOCATION:LINCS Meeting Room 40\, 23\, avenue d'Italie\, Paris\, 75013\,
 France
GEO:48.8283983;2.3568972000000485
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TZID:Europe/Paris
X-LIC-LOCATION:Europe/Paris
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DTSTART:20160327T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
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