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- W2953079289 abstract "Device-free localization (DFL) systems that rely on the wireless received signal strength indicator (RSSI) metric have been reported in literature for almost a decade. Histogram distance-based DFL (HD-DFL) techniques that operate by constructing RSSI histograms are highly effective as they can localize stationary and moving people in both outdoor and complex indoor environments. A key step in the histogram approaches is the estimation of the difference between the “long-term” and “short-term” histograms. The existing HD-DFL methods use either Kullback-Leibler or the subsequent improvement, kernel distance, to measure this difference. This paper is the first known work to compare an extensive range of histogram distance metrics within a DFL context and demonstrate how a judicious selection of a distance metric can significantly increase the performance of an HD-DFL system. The results from practical implementation in two different environments show that some distance metrics perform considerably better than the kernel distance when used for existing DFL techniques, such as radio tomographic imaging (RTI) and SpringLoc, with the overall median tracking error reducing by up to 25%." @default.
- W2953079289 created "2019-06-27" @default.
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- W2953079289 date "2019-10-01" @default.
- W2953079289 modified "2023-09-30" @default.
- W2953079289 title "Improved Distance Metrics for Histogram-Based Device-Free Localization" @default.
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- W2953079289 doi "https://doi.org/10.1109/jsen.2019.2922772" @default.
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