Fairness-aware transmitter design for OFDMA-based full-duplex wireless powered communication networks

Abstract

This letter introduces a transmitter design algorithm that prioritizes user fairness for OFDMA-based full-duplex wireless powered communication networks. In the energy transmitter, beamforming is determined to efficiently transmit energy signals to user terminals while minimizing interference to the information receiver, and the transmit power is allocated according to a proportional fairness criterion. In user terminals, subbands are allocated based on minimum rate maximization for information transmission using the harvested power. The simulation results demonstrate that the proposed design algorithm achieves superior user fairness compared to the conventional sum-rate maximization algorithm.