A Rendezvous Protocol with the Heterogeneous Spectrum Availability Analysis for Cognitive Radio Ad Hoc Networks

<table>Asymmetric channel view: combination of maps with 3 and 4 channels, while rotating the cycle; RDV consideration in <svg height="11.6875" id="M264" style="vertical-align:-0.20474pt" version="1.1" viewbox="0 0 12.6875 11.6875" width="12.6875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.363)"><path d="M377 665q131 0 224.5 -93t93.5 -239q0 -157 -95 -252.5t-237 -95.5q-136 0 -227.5 94.5t-91.5 237.5q0 141 91 244.5t242 103.5zM355 630q-88 0 -148.5 -75t-60.5 -210q0 -141 67 -232t172 -91q89 0 148.5 72.5t59.5 209.5q0 154 -66.5 240t-171.5 86zM502 225h-31
q-5 50 -14.5 62t-45.5 12h-85q-36 0 -45.5 -12t-14.5 -62h-31v217h31q5 -51 14.5 -62.5t45.5 -10.5h85q36 0 45.5 11.5t14.5 61.5h31v-217z" id="x398"></path></g>
</svg>; <i>black</i> square stands for channel 1, <i>gray</i> square for channel 2, and <i>white</i> square for channel 3; R stands for Rendezvous.</table>

Journal of Electrical and Computer Engineering

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Figure 7

Figure 7: A Rendezvous Protocol with the Heterogeneous Spectrum Availability Analysis for Cognitive Radio Ad Hoc Networks 