Bubble-Sensing: A New Paradigm for Binding a Sensing Task

to the Physical World using Mobile Phones

Hong Lu , Nicholas D. Lane, Shane B. Eisenman, Andrew T. Campbell

Dartmouth College

• Sensing Bubble• (action, region, duration)

•IdeaOpportunistically leverage cell phone density within the area to maintain coverage

Virtual roles• Bubble creator • Bubble anchor• Bubble carrier• Sensing node

Bubble Sensing

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Take a photo here !!

Bubble Creation Phase

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Bubble CreatorBubble Anchor

Mobile SensorMobile Sensor

Bubble Server

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Bubble Maintenance Phase

Bubble Anchor

Mobile SensorMobile Sensor

Bubble Anchor

Bubble Server

Bubble Restoration Phase

Bubble Server

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Mobile Sensor

Bubble Anchor

Bubble Restoration Phase

Bubble Server

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Mobile Sensor

Bubble Anchor

Mobile Sensor

Bubble carrier

Test bed Implementation• Device

• Nokia N95, • Nokia N80 + BlueCel dongle

• Pys60

• WiFi based communication • Ad-Hoc mode • infrastructure mode• 4mw

• Beacon based WiFi localization

• The sensing task:• Take sound clips

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Sensing Coverage over Time

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Fidelity

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Related Work

• Mobile phone as a sensing device• UCLA, UIUC, MIT, Ohio State• Nokia, Motorola, Intel, Microsoft

• Exploit location information • Routing, Geocast• geographic storage, DCS, GHT

• Theoretical work• Virtual static node

Bubble-Sensinghong@cs.dartmouth.edu

Thanks for Listening

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