User grouping and power allocation algorithm for UAV-aided NOMA network

Please use this identifier to cite or link to this item: 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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