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Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems
In order to fully utilize the spectrum resources, this work considers a unmanned aerial vehicle (UAV) uplink communication system based on non-orthogonal multiple access technology (NOMA), in which the UAV receives information from the ground users with a certain flying altitude. As an initial study...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7843376/ https://www.ncbi.nlm.nih.gov/pubmed/33519411 http://dx.doi.org/10.3389/fnbot.2020.599344 |
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author | Zhao, Fayong |
author_facet | Zhao, Fayong |
author_sort | Zhao, Fayong |
collection | PubMed |
description | In order to fully utilize the spectrum resources, this work considers a unmanned aerial vehicle (UAV) uplink communication system based on non-orthogonal multiple access technology (NOMA), in which the UAV receives information from the ground users with a certain flying altitude. As an initial study, we consider a simplified setup with two ground users to draw some insightful results. Explicitly, we first formulate an optimization problem that maximizes the sum throughput subject to each user's transmit power constraint and their corresponding minimum transmission rate requirement. Then, both the optimal transmit power and UAV's deployment location are derived with the aid of employing the Karush-Kuhn-Tucher (KKT) conditions. Simulation results show that the proposed UAV's deployment scheme with the users' power allocation can achieve a higher sum throughput compared with two existing benchmark schemes. |
format | Online Article Text |
id | pubmed-7843376 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-78433762021-01-30 Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems Zhao, Fayong Front Neurorobot Neuroscience In order to fully utilize the spectrum resources, this work considers a unmanned aerial vehicle (UAV) uplink communication system based on non-orthogonal multiple access technology (NOMA), in which the UAV receives information from the ground users with a certain flying altitude. As an initial study, we consider a simplified setup with two ground users to draw some insightful results. Explicitly, we first formulate an optimization problem that maximizes the sum throughput subject to each user's transmit power constraint and their corresponding minimum transmission rate requirement. Then, both the optimal transmit power and UAV's deployment location are derived with the aid of employing the Karush-Kuhn-Tucher (KKT) conditions. Simulation results show that the proposed UAV's deployment scheme with the users' power allocation can achieve a higher sum throughput compared with two existing benchmark schemes. Frontiers Media S.A. 2021-01-15 /pmc/articles/PMC7843376/ /pubmed/33519411 http://dx.doi.org/10.3389/fnbot.2020.599344 Text en Copyright © 2021 Zhao. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Zhao, Fayong Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems |
title | Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems |
title_full | Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems |
title_fullStr | Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems |
title_full_unstemmed | Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems |
title_short | Optimal UAV's Deployment and Transmit Power Design for Two Users Uplink NOMA Systems |
title_sort | optimal uav's deployment and transmit power design for two users uplink noma systems |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7843376/ https://www.ncbi.nlm.nih.gov/pubmed/33519411 http://dx.doi.org/10.3389/fnbot.2020.599344 |
work_keys_str_mv | AT zhaofayong optimaluavsdeploymentandtransmitpowerdesignfortwousersuplinknomasystems |