Cognitive radio (CR) is a promising wireless technology that provides efficient spectral
usage. Medium Access Control (MAC) has an important role in several cognitive radio …

We propose an energy-efficient Distributed Spectrum Sensing (DSS) scheme, called cluster-
and-forward based DSS scheme, for our developed two-tier hierarchical cognitive radio …

The main challenge for a cognitive radio is to detect the existence of primary users reliably in
order to minimise the interference to licensed communications. Hence, spectrum sensing is …

In this paper, we consider heterogeneous cognitive radio networks (CRNs) comprising
primary channels (PCs) with heterogeneous characteristics and secondary users (SUs) with …

Cognitive radio (CR) is a promising technology for overcoming the lack of available
communication bands. In CR technology, spectrum sensing is an important issue, which has …

In this paper, we consider the cooperative spectrum sensing problem for a cognitive radio
(CR) mesh network, where secondary users (SUs) are allowed to share the spectrum band …

Collaborative spectrum sensing, which collects local observations or decisions from multiple
secondary users to make a decision by a fusion center, is an effective approach to alleviate …

It is known that the reliability of spectrum sensing in cognitive radio systems has the potential
to improve when this critical process is performed distributively by multiple radios. In …

Cooperation in spectral sensing (SS) offers a fast and reliable detection of primary user (PU)
transmission over a frequency spectrum at the expense of increased energy consumption …

Recently, compressive sensing (CS) and spectrum sensing have been two hot topics in the
signal processing and cognitive radio network (CRN) fields, respectively. Due to the …