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Spectrum Sensing over -μ Shadowed Fading Channel with Noise Uncertainty
Cognitive radio-μ shadowed fading channelSpectrum sensingNoise uncertainty.
Resumo
In this paper, the performance analysis of energy
detection of cognitive radio systems operating over -μ shadowed
fading channel distribution is presented and investigated.
The composite multipath/shadowing model provide remarkably
accurate statistical characterization due considering both smallscale
and large-scale fading in their physical model. In this way,
admitting the noise power estimation error and noise uncertainty,
the worst case of the miss detection and false-alarm probabilities
are derived for cooperative and non-cooperative spectrum
sensing systems. Field measurements are used to investigate, in
practice, the usefulness of the -μ shadowed composite fading, in
cooperative spectrum sensing scenarios and an excellent fitting is
found. Comparisons are performed against other fading model,
in which it is possible