In this letter, we consider cooperative spectrum sensing based on energy detection in
cognitive radio networks. Soft combination of the observed energies from different cognitive …

In this letter, we consider hierarchical cooperative spectrum sensing based on two-threshold
energy detection in cognitive radio networks. In order to solve the sensing failure problem in …

We consider cooperative spectrum sensing in which multiple cognitive radios collaboratively
detect the spectrum holes through energy detection and investigate the optimality of …

The detection reliability of a cognitive radio network improves by employing a cooperative
spectrum sensing scheme. However, increasing the number of cognitive radios entails a …

Detection performance of an energy detector used for cooperative spectrum sensing in a
cognitive radio network is investigated over channels with both multipath fading and …

Rapidly rising energy costs and increasingly rigid environmental standards have led to an
emerging trend of addressing “energy efficiency” aspect of wireless communication …

Spectrum sensing is one of the key functionalities in the implementation of cognitive radio. It
is used to sense the unused spectrum in an opportunistic manner. In this paper, we propose …

An efficient cooperative spectrum sensing based cognitive radio network employs a certain
number of secondary users to sense the spectrum while satisfying a constraint on the …

Sensing with equal gain combining (SEGC), a novel cooperative spectrum sensing
technique for cognitive radio networks, is proposed. Cognitive radios simultaneously …

When secondary users (SUs) in a cognitive radio network (CRN) are battery-powered
wireless devices, energy resources become very precious. Therefore, it is important that …