Abstract

In this paper, a Wireless Powered Communication (WPC) based hybrid multiple access model is proposed. Users can harvest energy in the downlink and transmit signals to base station in the uplink. In order to implement hybrid multiple access, Non-Orthogonal Multiple Access (NOMA) is used for intra-cluster users, while Orthogonal Frequency Division Multiple Access (OFDMA) is used for inter-cluster users. Simulation results demonstrate that the WPC based hybrid multiple access scheme can effectively improve the spectrum efficiency and fairness.

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