Physical layer security (PLS) has emerged as a new concept and powerful alternative that
can complement and may even replace encryption-based approaches, which entail many …

Cloud computing provides powerful computing ability of mobile devices in the Internet of
Things (IoT) networks. However, the large amounts of data interaction with cloud suffers …

Internet of Things arises as a computational paradigm that promotes the interconnection of
objects to the Internet and enables interaction, operational efficiency, and communication …

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 …

In this paper, a novel wireless energy harvesting cooperative jammer (EH-CJ)-aided
transmission scheme, which can enhance the security for cooperative cognitive radio …

This paper investigates the effect of multiuser gain provided by the secondary user selection
on the secrecy performance of the primary users. We first propose a simple scheme where …

In order to solve the problem of spectrum scarcity in wireless sensor networks, cognitive
radio technology can be introduced into wireless sensor networks, giving rising to cognitive …

In this article, we focus on the problem of relay selection for the cooperative cognitive radio-
based Internet of things. In such systems, a pair of primary user devices (PUs) can only …

Passive localization of the wireless signal source attracts a considerable level of research
interest for its wide applications in modern wireless communication systems. To accurately …

Currently, the cooperation-based spectrum access in cognitive radio networks (CRNs) is
implemented via cooperative communications based on link-level frame-based cooperative …