A Survey of Cognitive Radio Access to TV White
Spaces

<table>Available TVWS capacity for low-power cognitive access in <svg height="11.125" id="M2" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 16.4375 11.125" width="16.4375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> UK locations as obtained from coverage modelling. Results are shown both without (green bars)  and with  (red bars) considering adjacent channel interference constraint.</table>

International Journal of Digital Multimedia Broadcasting

A Survey of Cognitive Radio Access to TV White Spaces

Figure 4