IEEE 802.11-Based Wireless Sensor System for Vibration Measurement

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="631939.fig.001a" src="https://static.hindawi.com/articles/ace/volume-2010/631939/figures/631939.fig.001a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Node no.3 successfully sends a beacon</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="631939.fig.001b" src="https://static.hindawi.com/articles/ace/volume-2010/631939/figures/631939.fig.001b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Node no.2,4,5 fail and #1 sends a beacon</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="631939.fig.001c" src="https://static.hindawi.com/articles/ace/volume-2010/631939/figures/631939.fig.001c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Node no.4 sends a beacon</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="631939.fig.001d" src="https://static.hindawi.com/articles/ace/volume-2010/631939/figures/631939.fig.001d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>No one sends a beacon</td></tr></table></td></tr></table>

<table>Slot allocation and transmission contention.</table>

Advances in Civil Engineering

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Figure 1

Figure 1: IEEE 802.11-Based Wireless Sensor System for Vibration Measurement 