LOCADIO: inferring motion and location from Wi-Fi signal strengths

@article{Krumm2004LOCADIOIM,
  title={LOCADIO: inferring motion and location from Wi-Fi signal strengths},
  author={John Krumm and Eric Horvitz},
  journal={The First Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services, 2004. MOBIQUITOUS 2004.},
  year={2004},
  pages={4-13}
}
Context is a critical ingredient of ubiquitous computing. While it is possible to use specialized sensors and beacons to measure certain aspects of a user's context, we are interested in what we can infer from using the existing 802.11 wireless network infrastructure that already exists in many places. The context parameters we infer are the location of a client (with a median error of 1.5 meters) and an indicator of whether or not the client is in motion (with a classification accuracy of 87… CONTINUE READING
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