Cell-free UAV networks with wireless fronthaul: analysis and optimization

The use of uncrewed aerial vehicles (UAVs) in cell-free networks is poised to unleash a number of new opportunities to further improve wireless networks. However, cell-free UAV networks present major challenges related to the wireless nature of access and fronthaul links. This manuscript studies the...

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Authors: Diaz-Vilor, Carles, Lozano Solsona, Angel, Jafarkhani, Hamid
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Consorcio Madroño
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:dnet:recercat____::3a86f5f6bb81db1b224c088c3ff75b81
Online Access:https://hdl.handle.net/10230/72915
http://dx.doi.org/10.1109/TWC.2023.3294908
Access Level:Open access
Keyword:Cell-free
UAV
Fronthaul
FDMA
SDMA
Deployment optimization
Power optimization
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spelling Cell-free UAV networks with wireless fronthaul: analysis and optimizationDiaz-Vilor, CarlesLozano Solsona, AngelJafarkhani, HamidCell-freeUAVFronthaulFDMASDMADeployment optimizationPower optimizationThe use of uncrewed aerial vehicles (UAVs) in cell-free networks is poised to unleash a number of new opportunities to further improve wireless networks. However, cell-free UAV networks present major challenges related to the wireless nature of access and fronthaul links. This manuscript studies the uplink of cell-free systems where users connect to UAVs, the latter devices forwarding the information to a processing point through imperfect wireless fronthaul links. Three multiple access alternatives are considered for the fronthaul, namely frequency division multiples access, spatial division multiple access, and combinations thereof. Deterministic equivalent expressions for the spectral efficiency under these fronthaul schemes and minimum mean-square error reception are derived. Then, the optimization subproblems of (a) the 3D deployment of the UAVs, (b) the user transmit powers, and (c) the UAV transmit powers, are investigated. The joint optimization of these subproblems yields superior performance, with the 3D deployment being the main source of improvement.Institute of Electrical and Electronics Engineers (IEEE)2026202620242026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/10230/72915http://dx.doi.org/10.1109/TWC.2023.3294908https://hdl.handle.net/10230/72915reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Consorcio MadroñoInglésIEEE Transactions on Wireless Communications. 2024;23(3):2054-69© 2023 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dnet:recercat____::3a86f5f6bb81db1b224c088c3ff75b812026-05-29T05:05:01Z
dc.title.none.fl_str_mv Cell-free UAV networks with wireless fronthaul: analysis and optimization
title Cell-free UAV networks with wireless fronthaul: analysis and optimization
spellingShingle Cell-free UAV networks with wireless fronthaul: analysis and optimization
Diaz-Vilor, Carles
Cell-free
UAV
Fronthaul
FDMA
SDMA
Deployment optimization
Power optimization
title_short Cell-free UAV networks with wireless fronthaul: analysis and optimization
title_full Cell-free UAV networks with wireless fronthaul: analysis and optimization
title_fullStr Cell-free UAV networks with wireless fronthaul: analysis and optimization
title_full_unstemmed Cell-free UAV networks with wireless fronthaul: analysis and optimization
title_sort Cell-free UAV networks with wireless fronthaul: analysis and optimization
dc.creator.none.fl_str_mv Diaz-Vilor, Carles
Lozano Solsona, Angel
Jafarkhani, Hamid
author Diaz-Vilor, Carles
author_facet Diaz-Vilor, Carles
Lozano Solsona, Angel
Jafarkhani, Hamid
author_role author
author2 Lozano Solsona, Angel
Jafarkhani, Hamid
author2_role author
author
dc.subject.none.fl_str_mv Cell-free
UAV
Fronthaul
FDMA
SDMA
Deployment optimization
Power optimization
topic Cell-free
UAV
Fronthaul
FDMA
SDMA
Deployment optimization
Power optimization
description The use of uncrewed aerial vehicles (UAVs) in cell-free networks is poised to unleash a number of new opportunities to further improve wireless networks. However, cell-free UAV networks present major challenges related to the wireless nature of access and fronthaul links. This manuscript studies the uplink of cell-free systems where users connect to UAVs, the latter devices forwarding the information to a processing point through imperfect wireless fronthaul links. Three multiple access alternatives are considered for the fronthaul, namely frequency division multiples access, spatial division multiple access, and combinations thereof. Deterministic equivalent expressions for the spectral efficiency under these fronthaul schemes and minimum mean-square error reception are derived. Then, the optimization subproblems of (a) the 3D deployment of the UAVs, (b) the user transmit powers, and (c) the UAV transmit powers, are investigated. The joint optimization of these subproblems yields superior performance, with the 3D deployment being the main source of improvement.
publishDate 2024
dc.date.none.fl_str_mv 2024
2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/10230/72915
http://dx.doi.org/10.1109/TWC.2023.3294908
https://hdl.handle.net/10230/72915
url https://hdl.handle.net/10230/72915
http://dx.doi.org/10.1109/TWC.2023.3294908
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv IEEE Transactions on Wireless Communications. 2024;23(3):2054-69
dc.rights.none.fl_str_mv https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Consorcio Madroño
instname_str Consorcio Madroño
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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