In this paper, we propose a cooperative approach to improve the security of both primary
and secondary systems in cognitive radio multicast communications. During their access to …

In this paper, we investigate a new cooperative paradigm to provide information security for
the primary system in cognitive two-way networks where the two-way secondary system can …

In this paper, we proposed a symbiotic approach for a secure primary network by allowing
the secondary users to send the jamming noise to degrade the wiretap ability of the …

In cognitive radio (CR) systems, we often use jamming schemes to improve the physical-
layer security in the presence of passive eavesdroppers. However, it also needs additional …

In this study, secure communication in cognitive radio networks is investigated. A
cooperative jammer is utilised to transmit artificial noise for interfering with the …

In this paper, we investigate cooperative secure communications in a four-node cognitive
radio network where the secondary receiver is treated as a potential eavesdropper with …

In this paper, we study the secure beamforming design for a cognitive radio network (CRN),
where a primary transmitter-receiver pair coexists with an untrusted secondary transmitter …

In this paper, we investigate beamforming design for cooperative secure transmission in
cognitive two-way relay networks, where the cognitive transmitter (CT) with multiple …

In this paper, we investigate the secrecy performance of a Cooperative Cognitive Radio
Network (CCRN) in the presence of an eavesdropper (EAV). The secondary users (SUs) are …

In a cognitive radio (CR) network, the transmitting signal of a secondary user (SU) is
traditionally considered to be harmful for the primary user (PU), since it decreases the …