  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.
