cooperative spectrum sensing for cognitive radios
Post on 13-Jan-2016
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Cooperative Spectrum Sensing for Cognitive Radios
26% highest efficiency for busiest band
13.1% Efficiency in NYC
$20 BILLION for 60 MHz
Primary User
Secondary User 3
Secondary User 2
Secondary User 1
Common Receiver
Energy Detection Matched Filter Detection Cyclostationary Detection Wavelet Detection Performance
x[n] y[n]Compareto template
DecideH0orH1
Intro to CSS Performance of CSS Cooperative Diversity CSS Relay Diversity CSS Multiuser Diversity CSS Censored Decision CSS Asynchronous CSS
Primary User
Secondary User 3
Secondary User 2
Secondary User 1
Common Receiver
λ1 λ2
AmbiguousH0 H1
Primary User
Secondary User 3
Secondary User 2
Secondary User 1
Common Receiver
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