Wireless Internet White Papers
LOCADIO: Inferring Motion and Location From Wi-Fi Signal Strengths
Overview 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, it is interested in what it can infer from using the existing 802.11 wireless network infrastructure that already exists in many places. The context parameters it infers 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%). The system, called LOCADIO, uses Wi-Fi signal strengths from existing access points measured on the client to infer both pieces of context.
| Publisher | Microsoft | File Format | |
|---|---|---|---|
| Date Published | June 2004 | ||
| Format | White Papers | ||
| Topics | |||
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