Cognitive radio networks require fast and reliable spectrum sensing to achieve high network
utilization by secondary users. Optimization approaches to spectrum sensing to-date have …

Cognitive radio networks require fast and reliable spectrum sensing to achieve high network
utilization by secondary users. Current optimization approaches to spectrum sensing to-date …

Spectrum sensing is the key enabling technology for cognitive radio networks. The main
objective of spectrum sensing is to provide more spectrum access opportunities to cognitive …

Powerful spectrum sensing schemes enable cognitive radios (CRs) to find transmission
opportunities in spectral resources allocated exclusively to primary users. In this paper, the …

In this study, the average throughput maximisation of a secondary user (SU) by optimising its
spectrum sensing time is formulated, assuming that a priori knowledge of the presence and …

Nowadays, with the dramatically increased penetration of wireless access, the conflict
between spectrum scarcity and under-utilisation is becoming more and more aggravating. A …

A key issue in spectrum sensing design is the optimization of sensing time, namely, the
sensing time that maximizes the transmission throughput achievable by cognitive users …

Traditional spectrum sensing methods require that a secondary user (SU) senses the
spectrum at the beginning of each time slot. A closer look at the network activities of a …

Two optimal frameworks for multichannel spectrum sensing in cognitive radio networks are
presented. Both frameworks search for multiple secondary transmission opportunities over a …

User cooperation for spectrum sensing in cognitive radios has been proposed in order to
improve the overall performance by mitigating multi-path fading and shadowing experienced …