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A Long-Duration Study Of User-Trained 802.11 Localization, Andrew Barry, Benjamin Fisher, Mark Chang
A Long-Duration Study Of User-Trained 802.11 Localization, Andrew Barry, Benjamin Fisher, Mark Chang
Mark L. Chang
We present an indoor wireless localization system that is capable of room-level localization based solely on 802.11 network signal strengths and user-supplied training data. Our system naturally gathers dense data in places that users frequent while ignoring unvisited areas. By utilizing users, we create a comprehensive localization system that requires little off-line operation and no access to private locations to train. We have operated the system for over a year with more than 200 users working on a variety of laptops. To encourage use, we have implemented a live map that shows user locations in real-time, allowing for quick and …