Toward UAV-based communication: improving throughput by optimum trajectory and power allocation

Abstract It is predicted that the use of unmanned aerial vehicles (UAVs) in communication systems will be more extensive in future generations of wireless telecommunication networks, due to their facilitating advantages. In this paper, a UAV-based wireless communication system is considered in which...

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Main Authors: Sedighe Nasrollahi, Seyed Masoud Mirrezaei
Format: Article
Language:English
Published: SpringerOpen 2022-01-01
Series:EURASIP Journal on Wireless Communications and Networking
Subjects:
Online Access:https://doi.org/10.1186/s13638-022-02087-6
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author Sedighe Nasrollahi
Seyed Masoud Mirrezaei
author_facet Sedighe Nasrollahi
Seyed Masoud Mirrezaei
author_sort Sedighe Nasrollahi
collection DOAJ
description Abstract It is predicted that the use of unmanned aerial vehicles (UAVs) in communication systems will be more extensive in future generations of wireless telecommunication networks, due to their facilitating advantages. In this paper, a UAV-based wireless communication system is considered in which a UAV is employed as a relay to connect two ground users. These two disconnected users make a communication pair. Our aim is to maximize the minimum achievable information rate for the communication link between the transmitter and receiver, by cooperatively optimizing UAV trajectory and transmitter and source power allocation. Motivated by the above, we formulate the optimization problem. The solving process is complicated because of the non-convexity of the formulated problem. To overcome this difficulty, we convert the main problem to some sub-problems by fixing some constraints and solving them with iterative algorithms such as successive convex optimization and reaching the solution for the main problem. Simulation results show the capability of the proposed algorithm.
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spelling doaj.art-b5ae8297935243e995f9fd3500cba6652022-12-21T19:43:48ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14992022-01-012022111610.1186/s13638-022-02087-6Toward UAV-based communication: improving throughput by optimum trajectory and power allocationSedighe Nasrollahi0Seyed Masoud Mirrezaei1Faculty of Electrical Engineering, Shahrood University of TechnologyFaculty of Electrical Engineering, Shahrood University of TechnologyAbstract It is predicted that the use of unmanned aerial vehicles (UAVs) in communication systems will be more extensive in future generations of wireless telecommunication networks, due to their facilitating advantages. In this paper, a UAV-based wireless communication system is considered in which a UAV is employed as a relay to connect two ground users. These two disconnected users make a communication pair. Our aim is to maximize the minimum achievable information rate for the communication link between the transmitter and receiver, by cooperatively optimizing UAV trajectory and transmitter and source power allocation. Motivated by the above, we formulate the optimization problem. The solving process is complicated because of the non-convexity of the formulated problem. To overcome this difficulty, we convert the main problem to some sub-problems by fixing some constraints and solving them with iterative algorithms such as successive convex optimization and reaching the solution for the main problem. Simulation results show the capability of the proposed algorithm.https://doi.org/10.1186/s13638-022-02087-6UAVsRelayOptimizationPower allocationUAV trajectoryCommunication
spellingShingle Sedighe Nasrollahi
Seyed Masoud Mirrezaei
Toward UAV-based communication: improving throughput by optimum trajectory and power allocation
EURASIP Journal on Wireless Communications and Networking
UAVs
Relay
Optimization
Power allocation
UAV trajectory
Communication
title Toward UAV-based communication: improving throughput by optimum trajectory and power allocation
title_full Toward UAV-based communication: improving throughput by optimum trajectory and power allocation
title_fullStr Toward UAV-based communication: improving throughput by optimum trajectory and power allocation
title_full_unstemmed Toward UAV-based communication: improving throughput by optimum trajectory and power allocation
title_short Toward UAV-based communication: improving throughput by optimum trajectory and power allocation
title_sort toward uav based communication improving throughput by optimum trajectory and power allocation
topic UAVs
Relay
Optimization
Power allocation
UAV trajectory
Communication
url https://doi.org/10.1186/s13638-022-02087-6
work_keys_str_mv AT sedighenasrollahi towarduavbasedcommunicationimprovingthroughputbyoptimumtrajectoryandpowerallocation
AT seyedmasoudmirrezaei towarduavbasedcommunicationimprovingthroughputbyoptimumtrajectoryandpowerallocation