TELKOMNIKA Telecommunication, Computing, Electronics and Control
Effect of random sampling on spectrum sensing for cognitive radio networks

TELKOMNIKA Telecommunication, Computing, Electronics and Control
Effect of random sampling on spectrum sensing for cognitive radio networks

Cognitive radio
Energy detector
Maximum eigenvalue
Random sampling
Spectrum sensing

Cognitive radio is a mechanism allowing dynamic access to spectrum
channels. Since its beginnings, researchers have been working on using this
inventive technology to control and manage the spectrum resources.
Consequently, this research field has been progressing rapidly and important
advances have been made. Spectrum sensing is a key function of cognitive
radios that helps prevent the harmful interference with licensed users, as well
as identifies the available spectrum to improve its utilization. Several spectrum
sensing techniques are found in scientific literature. In this paper, we
investigate the effect of the random sampling in spectrum sensing. We propose
a spectrum sensing approach based on the energy detection and on the
maximum eigenvalue detection (MED) combined with random sampling. The
performance of the proposed approach is evaluated in terms of the receiver
operating characteristics curves and in terms of the detection probability for
different values of signal to noise ratio. The obtained results are compared to
the uniform sampling case to show the added value of random sampling.

Asmaa Maali, Hayat Semlali, Sara Laafar, Najib Boumaaz, Abdallah Soulmani

http://journal.uad.ac.id/index.php/TELKOMNIKA

Jan 20, 2021

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