In recent years, the security issues of the cognitive radio (CR) networks have drawn a lot of
research attentions. Primary user emulation attack (PUEA), as one of common attacks …

Performance evaluation of cognitive radio (CR) networks is an important problem but has
received relatively limited attention from the CR community. Unlike traditional radios, a …

A simple figure of merit to describe the performance of an energy detector is desirable. The
area under the receiver operating characteristic (ROC) curve, denoted (AUC), is such a …

Spectrum sensing is of crucial importance in cognitive radio (CR) networks. In this paper, a
reliable spectrum sensing scheme is proposed, which uses K‐nearest neighbor, a machine …

A cooperative cognitive radio (CR) sensing problem is considered, where a number of CRs
collaboratively detect the presence of primary users (PUs) by exploiting the novel notion of …

We study cooperative spectrum sensing in cognitive radio networks (CRN) using machine
learning techniques in this paper. A low-dimensional probability vector is proposed as the …

Spectrum scarcity is impeding practical implementations of emerging wireless multimedia
applications requiring significantly more frequency spectrum. Cognitive radio (CR) has …

The main objective of cognitive radio network is to provide flexible spectrum management,
by permitting the secondary users (SUs) to temporarily access the licensed spectrum in the …

In cognitive radio networks, each cognitive transmission process typically requires two
phases: the spectrum sensing phase and data transmission phase. In this paper, we …

In this paper, we investigate the physical layer security for a cognitive multiuser network
which is composed of multiple cognitive sources, a cognitive destination and an …