Analysis and Enhancement of IEEE 802.15.4e DSME Beacon Scheduling Model

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="934610.fig.009a" src="https://static.hindawi.com/articles/jam/volume-2014/934610/figures/934610.fig.009a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Allocation notification of nodes 3, 6, 7, 8, and 9</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="934610.fig.009b" src="https://static.hindawi.com/articles/jam/volume-2014/934610/figures/934610.fig.009b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Permission notification of nodes 4 and 5</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="934610.fig.009c" src="https://static.hindawi.com/articles/jam/volume-2014/934610/figures/934610.fig.009c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Beacon collision by the same SD slot allocation</td></tr></table></td></tr></table>

<table>Main reason for performance degradation: distributed permission method.</table>

Journal of Applied Mathematics

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Figure 9

Figure 9: Analysis and Enhancement of IEEE 802.15.4e DSME Beacon Scheduling Model 