A New Interweave Cognitive Radio Scheme for Out-band Energy Harvesting Systems

TL;DR

This paper introduces a novel interweave cognitive radio scheme that enables energy harvesting via wireless power transfer in out-band systems, improving spectrum efficiency and energy utilization in heterogeneous networks.

Contribution

It presents an analytical framework for an interweave CR scheme with out-band energy harvesting, considering realistic fading channels and providing performance insights.

Findings

The proposed scheme enhances energy harvesting efficiency.

Performance analysis shows robustness under various fading conditions.

Numerical results validate the scheme's effectiveness.

Abstract

In this paper, a new interweave cognitive radio (CR) transmission scheme is analytically presented for energy harvesting (EH)-enabled transmitting nodes. EH is performed via a dedicated power beacon (PB) base station through wireless power transfer, which harvests energy to both primary and secondary systems. The out-band mode-of-operation between PB and the two heterogeneous systems is considered (i.e., data communication and EH are realized at different frequency bands). The performance of the new interweave CR system is studied under independent and not necessarily identically distributed $\kappa-\mu$ shadowed faded channels. Representative numerical and simulation results corroborate the effectiveness of the proposed scheme and presented analysis, while some useful engineering insights are provided.