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.
| Original language | British English |
|---|---|
| Pages (from-to) | 1239-1242 |
| Number of pages | 4 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 11 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Jun 2022 |
Keywords
- 5G
- B5G
- full-duplex communications
- Non-orthogonal multiple access (NOMA)
- simultaneous wireless information and power transfer (SWIPT)