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To complement the GPS, one can embed RFID tags in physical spaces and use them as location reference points. However, it is often costly to deploy such location reference tags over a large area. To minimize the deployment cost, the paper has developed an easy-to-deploy localization system in which location tags tell pedestrians where they are walking, and, in turn, pedestrians implicitly teach the tags where they are embedded in. This paper describes the system's algorithm design, implementation, and the results of the experiments for dense and sparse configurations. The system enables lightweight RFID deployment without explicit data inputs, thereby facilitating end-user design of pervasive location infrastructure.

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Format:PDFSize:213 KB
Date:May 2008
Pages:5
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