In this study, the authors consider a cooperative communication framework based on one‐
way and two‐way relays to provide secure communications for secondary users (SUs) within …

In this paper, we consider a two-way cooperative communication framework to provide
secure communications for secondary users within an Orthogonal Frequency-Division …

In this study, the physical layer security for cognitive radio network (CRN) will be
investigated in which a secondary user transmitter (SU-Tx) sends confidential information to …

In this paper, we investigate the secrecy performance achieved by a new cooperative
cognitive radio (CR) model which employs the two-path amplify-and-forward (AF) relaying …

The security in cognitive radio networks (CRNs) has been attracting continuously growing
attention due to the open and dynamic nature of cognitive radio architecture. In this paper …

In this paper, we consider a cooperative multi-hop secured transmission protocol to underlay
cognitive radio networks. In the proposed protocol, a secondary source attempts to transmit …

In this paper, a physical-layer-security scheme for an underlay relay-based cognitive radio
network (CRN) that uses orthogonal frequency-division multiplexing (OFDM) as the medium …

The security in cognitive radio networks (CRNs) has been attracting continuously growing
attention, due to the open and dynamic nature of cognitive radio architecture. In this paper …

In this paper, we investigate physical layer security for multiple decode-and-forward (DF)
relaying underlay cognitive radio networks (CRNs) with fixed transmit power at the …

In this paper, we consider cognitive relay networks with N th best relay and beamforming
schemes under the joint impact of imperfect spectrum sensing and outdated channel …