Crowdsource Based Indoor Localization by Uncalibrated Heterogeneous Wi-Fi Devices

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/misy/volume-2016/4916563/figures/4916563.fig.003a.svgz" name="4916563.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Desire HD</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/misy/volume-2016/4916563/figures/4916563.fig.003b.svgz" name="4916563.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Galaxy Note <svg height="8.39864pt" id="M182" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -8.34882 6.36303 8.39864" width="6.36303pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M456 178V225H360V632H320C217 496 115 347 20 206V178H280V106C280 40 276 34 189 27V0H445V27C364 34 360 39 360 106V178H456ZM280 225H82C149 335 214 431 278 520H280V225Z" id="g113-53"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g></svg></td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/misy/volume-2016/4916563/figures/4916563.fig.003c.svgz" name="4916563.fig.003c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Vega Iron 2</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/misy/volume-2016/4916563/figures/4916563.fig.003d.svgz" name="4916563.fig.003d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Galaxy S3</td></tr></table>

<div>Impact of device heterogeneity experiment at 5th floor of Gachon IT building.</div>

Mobile Information Systems

fig3

Figure 3

Figure 3: Crowdsource Based Indoor Localization by Uncalibrated Heterogeneous Wi-Fi Devices 