Self Management in Chaotic Wireless Networks. Aditya Akella, Glenn Judd , Srini Seshan, Peter Steenkiste Carnegie Mellon University. Wireless Proliferation. Sharp increase in deployment Airports, malls, coffee shops, homes… 4.5 million APs sold in 3 rd quarter of 2004!
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Aditya Akella, Glenn Judd,
Srini Seshan, Peter Steenkiste
Carnegie Mellon University
2AP Stats, Degrees: Placelab
Channel selection must be automatedUnmanaged Devices
WifiMaps.com(300,000 APs, MAC, ESSID, Channel)
Map Showing Portion of Pittsburgh Data
3 clients per AP. 2 clients run FTP sessions.
All others run HTTP.300 seconds
5s sleep time
20s sleep time
Channel + Tx Power Control
txPower determines range
dclient, txPower determines rate
dminImpact of Joint Transmit Power and Rate Control
Objective: given <load, txPower, dclient> determine dmin