entracked : energy-efficient robust position tracking for mobile devices
DESCRIPTION
EnTracked : Energy-Efficient Robust Position Tracking for Mobile Devices. Mikkel Baun Kjærgaard , Jakob Langdal , Torben Godsk , Thomas Toftkjær MobiSys2009. Motivation. A system that, The estimation and prediction of system conditions and mobility - PowerPoint PPT PresentationTRANSCRIPT
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EnTracked: Energy-Efficient Robust Position Tracking for
Mobile DevicesMikkel Baun Kjærgaard, Jakob Langdal, Torben Godsk, Thomas Toftkjær
MobiSys2009
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MotivationA system that,
The estimation and prediction of system conditions and mobility
Schedules position updates to both minimize energy consumption and optimize robustness.
Platform: Nokia N95,AccelerometerGPSRadio (3G)
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Power ModelInstantaneous model is not accurate,
Example, TOSSIM.
Concerning delay impact,Request delayPower-off delay
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Power ModelRequest delay
GPS
Radio
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Power ModelPower-off delay
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EnTrackedPosition-base application
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EnTrackedEnTracked client flow
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Detecting Movement Using accelerometer
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Estimating SpeedUsing GPS
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Error Model
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ExperienceEmulation
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ExperienceEmulation
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ExperienceReal-world validation
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ExperienceReal-world validation