Cross-Layer Throughput Optimization in Cognitive Radio Networks with SINR Constraints

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="985458.fig.007a" src="https://static.hindawi.com/articles/ijdmb/volume-2010/985458/figures/985458.fig.007a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Spectrum sharing</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="985458.fig.007b" src="https://static.hindawi.com/articles/ijdmb/volume-2010/985458/figures/985458.fig.007b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Routing flow 1</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="985458.fig.007c" src="https://static.hindawi.com/articles/ijdmb/volume-2010/985458/figures/985458.fig.007c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Routing flow 2</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="985458.fig.007d" src="https://static.hindawi.com/articles/ijdmb/volume-2010/985458/figures/985458.fig.007d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>Routing flow 3</td></tr></table></td></tr><tr class="fig-image" id="e"><td><img alt="985458.fig.007e" src="https://static.hindawi.com/articles/ijdmb/volume-2010/985458/figures/985458.fig.007e.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(e) </b>Routing flow 4</td></tr></table></td></tr><tr class="fig-image" id="f"><td><img alt="985458.fig.007f" src="https://static.hindawi.com/articles/ijdmb/volume-2010/985458/figures/985458.fig.007f.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(f) </b>Routing flow 5</td></tr></table></td></tr></table>

<table>Spectrum sharing and routing for random topology.</table>

International Journal of Digital Multimedia Broadcasting

fig7

Figure 7

Figure 7: Cross-Layer Throughput Optimization in Cognitive Radio Networks with SINR Constraints 