Cognitive radio, as a key technology to improve the utilization of radio spectrum, acquired
much attention. Moreover, spectrum sensing has an irreplaceable position in the field of …

Cognitive radio (CR), as an emerging technology to improve the utilization of radio
spectrum, the fundamental of CR technology is spectrum sensing, due to the detection …

The algorithm of cooperative spectrum sensing in cognitive radio networks can improve
detection probability of frequency spectrum sensing while increase cost of control channel …

In this paper, we propose a new cooperative spectrum sensing method based on adaptive
activation of energy detector (ED) and preamble detector (PD) for cognitive radio networks …

Cognitive radio is a promising technique for efficient utilization of idle authorized spectrum
since it is able to sense the spectrum and reuse the frequency when the primary user is …

In cognitive radio network, cooperative spectrum sensing (CSS) can improve the sensing
performance on the absence of a primary user, when the sensing channel is in severe …

Cognitive radio (CR) is a critical technology for improving spectrum utilization and solving
the radio spectrum scarcity problem. In CR devices, spectrum sensing is important to …

In cognitive radio systems, the design of spectrum sensing has to face the challenges of
radio sensitivity and wide-band frequency agility. It is difficult for a single cognitive user to …

Cognitive radio networks (CRNs) are a promising solution to address the spectrum shortage
issue. Spectrum sensing plays a key role to make such a scenario practical. In this letter, we …

Sensing the spectrum in a reliable and efficient manner is crucial to cognitive radio. To
combat the channel fading suffered by the single radio, cooperative spectrum sensing is …