Over the past two decades, numerous research projects have concentrated on cognitive
radio wireless sensor networks (CR-WSNs) and their benefits. To tackle the problem of …

To solve the problem of energy constraints and spectrum scarcity for cognitive radio wireless
sensor networks (CR-WSNs), an underlay decode-and-forward relaying scheme is …

In this paper, a transmit power-saving scheme incorporated with multiple relay-selection for
performance enhancement of underlay relay-assisted cognitive radio networks (RCRNs) is …

In underlay cognitive radio networks (CRNs), secondary users (SUs) are allowed to co‐exist
with the primary users at the cost of reduced transmit power in order to satisfy the stringent …

Spectrum and energy are two important resources for wireless sensor networks (WSNs).
Cognitive Radio (CR) can improve the efficiency of spectrum utilization by allowing …

In this article, a multiple relay selection (MRS) scheme for signal-to-noise ratio (SNR)
enhancement is proposed for underlay relay-assisted cognitive radio networks (RCRNs). A …

Cooperative relaying being a novel technique in cognitive radio (CR) communications
promises enhanced performance for secondary users (SU) by exploiting spatial diversity …

In this paper, we investigate the relay selection problem for two-way simultaneous wireless
information and power transfer (SWIPT) enabled cognitive radio networks. The system we …

In the present paper, we investigate the performance of the simultaneous wireless
information and power transfer (SWIPT) based cooperative cognitive radio networks …

This paper studies the performance of multi-hop multi-relay multiuser cognitive radio
networks (CRNs), where the relay nodes harvest energy from a dedicated power beacon …