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Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/33135
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dc.contributor.authorZhou, Y-
dc.contributor.authorAl-nahari, A-
dc.contributor.authorJäntti, R-
dc.contributor.authorMa, Z-
dc.contributor.authorFan, P-
dc.date.accessioned2026-04-12T10:43:07Z-
dc.date.available2026-04-12T10:43:07Z-
dc.date.issued2024-01-29-
dc.identifierORCiD: Yi Zhou https://orcid.org/0000-0001-6407-068X-
dc.identifierORCiD: Azzam Al-nahari https://orcid.org/0000-0001-7846-2377-
dc.identifierORCiD: Riku Jäntti https://orcid.org/0000-0002-5398-2381-
dc.identifierORCiD: Zheng Ma https://orcid.org/0000-0003-1683-4299-
dc.identifierORCiD: Pingzhi Fan https://orcid.org/0000-0002-8281-6251-
dc.identifier.citationZhou, Y. et al. (2024) 'Energy-Efficient Covert Communications for UAV-Assisted Backscatter Systems', IEEE Transactions on Vehicular Technology, 73 (6), pp. 9147–9152. doi: 10.1109/tvt.2024.3359182.en-US
dc.identifier.issn0018-9545-
dc.identifier.urihttps://bura.brunel.ac.uk/handle/2438/33135-
dc.description.abstractIn this paper, we propose an energy-efficient covert communication framework for unmanned aerial vehicle (UAV)-assisted backscatter systems, where one UAV is deployed to collect data from one ground backscatter device (BD), in the presence of a warden who is trying to detect whether BD is transmitting or not. We first analyze the false alarm probability (FAP) and miss detection probability (MDP) for the covert communication and investigate the detection error probability by considering the location and channel uncertainty of warden. Then, aimed at maximizing the energy efficiency (EE) of our proposed system subject to reliability and covertness constraints, we optimize the UAV transmit power and hovering point jointly and design a low-complexity solution based on alternating optimization (AO), Dinkelbach method and successive convex approximation (SCA) solutions. Finally, simulation results are provided to verify the effectiveness of our proposed algorithm and highlight the fundamental trade-off between the EE and covertness constraint.en-US
dc.description.sponsorship10.13039/501100001809-National Natural Science Foundation of China (Grant Number: U23A20274, 62361136810, 62301462, U2268201 and 62271419); Elite Scientists Sponsorship Program by CAST (Grant Number: 2022QNRC001); Sichuan Science and Technology Program (Grant Number: 2023YFG0321); 10.13039/501100012226-Fundamental Research Funds for the Central Universities (Grant Number: 2682023ZTPY060); European Project Hexa-X II; Business Finland Project 6G-eMTC.en-US
dc.format.extent9147–9152-
dc.format.mediumPrint-Electronic-
dc.languageen-USen-US
dc.language.isoenen-US
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en-US
dc.rightsCopyright © 2024 Institute of Electrical and Electronics Engineers (IEEE). Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works (see: https://journals.ieeeauthorcenter.ieee.org/become-an-ieee-journal-author/publishing-ethics/guidelines-and-policies/post-publication-policies/).-
dc.rights.urihttps://journals.ieeeauthorcenter.ieee.org/become-an-ieee-journal-author/publishing-ethics/guidelines-and-policies/post-publication-policies/-
dc.subjectunmanned aerial vehicle (UAV) communicationsen-US
dc.subjectbackscatter communicationsen-US
dc.subjectcovert communicationsen-US
dc.titleEnergy-Efficient Covert Communications for UAV-Assisted Backscatter Systemsen-US
dc.typeArticleen-US
dc.date.dateAccepted2024-01-01-
dc.identifier.doihttps://doi.org/10.1109/tvt.2024.3359182-
dc.relation.isPartOfIEEE Transactions on Vehicular Technology-
pubs.issue6-
pubs.publication-statusPublished-
pubs.volume73-
dc.identifier.eissn1939-9359-
dcterms.dateAccepted2024-01-01-
dc.rights.holderInstitute of Electrical and Electronics Engineers (IEEE)-
dc.contributor.orcidZhou, Yi [0000-0001-6407-068X]-
dc.contributor.orcidAl-nahari, Azzam [0000-0001-7846-2377]-
dc.contributor.orcidJäntti, Riku [0000-0002-5398-2381]-
dc.contributor.orcidMa, Zheng [0000-0003-1683-4299]-
dc.contributor.orcidFan, Pingzhi [0000-0002-8281-6251]-
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