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Towards Mobile Phone Localization without War-Driving

Basic Idea:
* Several trucks war-drive a place
* Create Radio map =
* Distribute map to phones
* Phone user goes to war-driven region, overhears WiFi IDs
* Reverse Look Up IDs against radio map
* Obtains location

Is Skyhook the solution?
Middle Ground
Lower Accuracy than GPS, Longer Battery lifetime
Better Accuracy than GSM, Shorter Battery lifetime

Goals
* No War-Driving
o Cannot drive walking paths (campus, parks, …)
o Expensive / Environment unfriendly
* No reliance on WiFi infrastructure
o Rural regions / developing countries
* Good accuracy (~GPS)
* Improve energy-efficiency
o Better than Skyhook, GPS

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