2019
DOI: 10.1109/mcom.2018.1800179
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Non-Orthogonal Multiple Access: Achieving Sustainable Future Radio Access

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Cited by 171 publications
(83 citation statements)
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“…The EE and SE trade-off is revealed and the proposed scheme has been compared with the exhaustive search in terms of EE performance and computational complexity. In our future work, we will carry out the EE maximization problem for novel 5G platforms such as massive MIMO, non-orthogonal multiple access (NOMA) and ultra-dense heterogeneous networks [25] [26].…”
Section: Discussionmentioning
confidence: 99%
“…The EE and SE trade-off is revealed and the proposed scheme has been compared with the exhaustive search in terms of EE performance and computational complexity. In our future work, we will carry out the EE maximization problem for novel 5G platforms such as massive MIMO, non-orthogonal multiple access (NOMA) and ultra-dense heterogeneous networks [25] [26].…”
Section: Discussionmentioning
confidence: 99%
“…To simplify the design in the sequel, we assume that the channel is modeled by pure LoS links as commonly adopted in the literature, e.g., [14], [15], [21], [22]. As the UAV communication channel is dominated by the LoS links 4 , the CSI between each node and each UAV can be determined by its location [21], [22], [23], [25], [26]. Besides, the desired ground node users perform handshaking with the system regularly such that accurate location information is available for resource allocation design.…”
Section: B Signal Modelmentioning
confidence: 99%
“…3 We note that since the channel between the UAV and the ground terminals are LoS dominated [22], [23], [26], the UAVs would fly at the lowest allowable flight altitude to obtain a higher channel gain for maximizing the system energy efficiency. Thus, we consider a fixed UAVs' flight altitude of H = 100 m. 4 Based on field measurements [28], [29], the air-to-ground links between the UAVs and the ground terminals are LoS channels in rural areas when the flight altitude of a UAV is 100 meters and the length of side of the service area is 500 meters. Besides, the adopted LoS model can facilitate the design of resource allocation and trajectory in the sequel.…”
Section: B Signal Modelmentioning
confidence: 99%
“…Successive interference cancellation (SIC) is usually utilized to distinguish signals from multiple users [17]. Recently, many research studies combine grant-free transmission with NOMA scheme to simultaneously accomplish high throughput, large connectivity, and low energy cost [18][19][20]. FTN transmission is also considered in NOMA scenario to gain superior performance in spectral efficiency [21,22].…”
Section: Introductionmentioning
confidence: 99%