This paper introduces a new solution to improve the performance for secondary systems in
radio frequency (RF) powered cognitive radio networks (CRNs). In a conventional RF …

In this paper, we propose a novel network model for RF-powered cognitive radio networks
and ambient backscatter communications. In the network under consideration, each …

In this paper, we study radio frequency (RF)-powered underlay cognitive radio networks
(CRNs) with power-domain non-orthogonal multiple access (NOMA). In these networks, by …

In the present contribution, we propose a novel opportunistic ambient backscatter
communication (ABC) framework for radio frequency (RF)-powered cognitive radio (CR) …

In this paper, we consider a cognitive wireless powered communication network for Internet
of Things applications, which consists of a primary communication pair and a secondary …

Envisioning the potentials of energy harvesting technology and the improved spectrum
reuse by joint utilization of overlay and underlay modes, this paper studies the throughput …

This paper investigates the time scheduling for a backscatter-aided radio-frequency-
powered cognitive radio network, where multiple secondary transmitters transmit data to the …

Spectrum efficiency and energy efficiency are two critical issues in designing wireless
networks. Through dynamic spectrum access, cognitive radios can improve the spectrum …

This paper aims to investigate the impacts of sensing energy and data availability on the
secondary throughput of energy harvesting cognitive radio networks (EH-CRNs), where …

Cognitive radio and energy harvesting techniques have provided significant benefits in
terms of spectrum reuse and lifetime prolongation for conventional wireless networks. We …