Visible Light Communication Channel Models and Simulation of Coal Workface Energy Coupling

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/271352/figures/271352.fig.008a.svgz" name="271352.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Line-of-sight</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/271352/figures/271352.fig.008b.svgz" name="271352.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The left and right columns reflection rays</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/271352/figures/271352.fig.008c.svgz" name="271352.fig.008c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>The roof reflection ray</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/271352/figures/271352.fig.008d.svgz" name="271352.fig.008d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>The floor reflection ray</td></tr></table>

<div>Line-of-sight and first-order reflecting signal pulse response.</div>

Mathematical Problems in Engineering

fig8

Figure 8

Figure 8: Visible Light Communication Channel Models and Simulation of Coal Workface Energy Coupling 