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 …

A cognitive radio (CR) is a promising technology to solve the emerging spectrum crisis,
especially for applications where thousands of wireless sensor nodes are deployed. Since …

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 …

Spectrum sensing plays a critical role in cognitive radio networks. A good sensing scheme
can reduce the false alarm probability and the miss detection probability, and thus improves …

Wideband spectrum sensing in heterogenous cognitive radio networks has two significant
challenges to tackle. One is the spectrum acquisition in the wideband scenario due to the …

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 …

This paper presents two-stage detectors for spectrum sensing in cognitive radio networks.
The first stage consists of multiple energy detectors, where each energy detector (ED) has a …

In this paper, the cooperative spectrum sensing is probabilistically modeled as a mixture of
two Gaussian distributions and EM algorithm is applied for learning the parameters and …

Cooperative spectrum sensing (CSS) offers cognitive radio networks a promising solution to
efficiently address the issue of spectrum scarcity. To enhance the detection performance of …

Cooperative spectrum sensing is a key technology of cognitive radio networks (CRNs) to the
reliability of spectrum sensing but is prone to be affected by a series of user characteristics …