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fixed some gfx

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added some comments to the tex
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FrankE
2016-07-12 17:20:09 +02:00
parent f8d5449dbc
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competition/tex/chapters/wifi.tex
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@@ -1,9 +1,9 @@
\subsection{\docWIFI}
the smartphone's \docWIFI{} component provides an absolute location estimation $(x,y,z)^T$ by
measuring the signal-strengths of nearby transmitters (\docAP{}) and comparing them with the signal-strengths
The smartphone's \docWIFI{} component provides an absolute location estimation $(x,y,z)^T$ by
measuring the signal-strengths of nearby transmitters (\docAP{}s) and comparing them with the signal-strengths
that should be measurable. The latter are determined using a signal-strength prediction model.
Thus, no fingerprinting is required. Solely the positions of the \docAP{}s must be known beforehand.%
Thus, no fingerprinting is required. Solely the positions of the \docAP{}s must be known beforehand.
%
Prediction uses the wall-attenuation-factor model \cite{ebner-15}
which needs just three parameters: