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SUMMARY:Architecting Citywide Ubiquitous Wi-Fi Access - Nishanth Sastry (U
 niversity of Cambridge)
DTSTART:20081202T164500Z
DTEND:20081202T171500Z
UID:TALK15473@talks.cam.ac.uk
CONTACT:Carl Scheffler
DESCRIPTION:Cities around the world are currently considering building inf
 rastructure for Wi-Fi. In urban areas\, resident-operated Wi-Fi access poi
 nts (APs) are dense enough to achieve ubiquitous Internet access\, provide
 d we can induce the hosts to provide guest Wi-Fi access. However\, sharing
  Wi-Fi involves taking on responsibility for the guest's actions. Our main
  contribution is a novel mechanism to handoff this responsibility to a tru
 sted point by tunneling the guest's packets through it. Using this as a pr
 imitive\, we show how to architect a citywide co-operative for safely shar
 ing Wi-Fi with legitimate guests. We offer this as an economically viable 
 alternative to investing millions in new infrastructure.\n
LOCATION:Boys Smith Room\, Fisher Building\, St John's College
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