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http://bura.brunel.ac.uk/handle/2438/23059
Title: | User grouping and power allocation algorithm for UAV-aided NOMA network |
Authors: | Li, G Lin, J Xu, Y Huang, Z Liu, T |
Keywords: | UAV;NOMA;user grouping;power allocation |
Issue Date: | 25-Sep-2020 |
Publisher: | China Association for Science and Technology |
Citation: | Li, G., Lin, J., Xu, Y., Huang, Z. and Liu, T. (2020) 'User grouping and power allocation algorithm for UAV-aided NOMA network', Tongxin Xuebao/Journal on Communications, 2020, 41 (9), pp. 21 - 28. doi: 10.11959/j.issn.1000-436x.2020194. |
Abstract: | Copyright © 2020 The Author(s). To improve the transmission flexibility of emergency communication scenarios, a joint user grouping and power allocation algorithm was proposed for UAV-aided non-orthogonal multiple access (NOMA) system. A sum-rate maximization resource allocation algorithm was formulated under the constraints of the maximum transmit power and the user grouping. To solve the non-convex problem, a graph-based user grouping algorithm was proposed to minimize the relative distance between the UAV and users. Based on the grouping result, the power allocation sub-problem was transformed into a convex one by using the auxiliary-variable approach. Simulation results demonstrate that the proposed algorithm has better performance in terms of sum rates. |
URI: | https://bura.brunel.ac.uk/handle/2438/23059 |
DOI: | https://doi.org/10.11959/j.issn.1000-436x.2020194 |
ISSN: | 1000-436X |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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