[en] Inner approximation ; relay network ; simultaneous wireless information and power transfer (SWIPT)
[en] This letter considers a multi-pair decode-andforward relay network where a power-splitting (PS) protocol is adopted at the energy-constrained relay to provide simultaneous wireless information and energy harvesting (EH). To achieve higher efficiency of EH, we propose a new PS-based EH architecture at the relay by incorporating an alternating current (AC) computing logic, which is employed to directly use the wirelessly harvestedACenergyforcomputationalblocks.Underanonlinear EHcircuit,ourgoalistomaximizethefairnessofend-to-endrate amonguserpairssubjecttopowerconstraints,resultinginanonconvex problem. We propose an iterative algorithm to achieve a suboptimal and efficient solution to this challenging problem by leveraging the inner approximation framework. Numerical results demonstrate that the proposed algorithm outperforms the traditional direct current computing and other baseline schemes.
Interdisciplinary Centre for Security, Reliability and Trust (SnT) – University of Luxembourg
Luxembourg National Research Fund (FNR)
The FNR-FNRS bilateral project “InWIP-NET: Integrated Wireless Information and Power Networks"
Researchers ; Professionals ; Students ; General public
[Soongsil University]
