Abstract
In this letter, a wireless power transfer (WPT) assisted full-duplex non-orthogonal multiple access (WPT-NOMA) transmission scheme for massive machine type communications (mMTC) scenario in the 5G and beyond cellular networks has been investigated. The proposed WPT-NOMA allows uplink and downlink users to share energy and radio resources simultaneously, which is crucial in the mMTC scenario to support massive energy-constrained devices with limited radio resources. A resource allocation problem is formulated as an optimization problem to maximize the uplink data rate and minimize the effect of interference from full-duplex transmission. Moreover, to solve the problem, an alternating resource allocation algorithm is proposed. The provided numerical studies demonstrate that WPT-NOMA outperforms benchmark schemes significantly.
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