Modeling and performance analysis of opportunistic link selection for UAV communication

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dc.contributor.authorXu, Zhengjia
dc.contributor.authorPetrunin, Ivan
dc.contributor.authorTsourdos, Antonios
dc.date.accessioned2021-02-10T15:14:38Z
dc.date.available2021-02-10T15:14:38Z
dc.date.issued2021-01-13
dc.description.abstractIn anticipation of wide implementation of 5G technologies, the scarcity of spectrum resources for the unmanned aerial vehicles (UAVs) communication remains one of the major challenges in arranging safe drone operations. Dynamic spectrum management among multiple UAVs as a tool that is able to address this issue, requires integrated solutions with considerations of heterogeneous link types and support of the multi-UAV operations. This paper proposes a synthesized resource allocation and opportunistic link selection (RA-OLS) scheme for the air-to-ground (A2G) UAV communication with dynamic link selections. The link opportunities using link hopping sequences (LHSs) are allocated in the GCSs for alleviating the internal collisions within the UAV network, offloading the on-board computations in the spectrum processing function, and avoiding the contention in the air. In this context, exclusive technical solutions are proposed to form the prototype system. A sub-optimal allocation method based on the greedy algorithm is presented for addressing the resource allocation problem. A mathematical model of the RA-OLS throughput with above propositions is formulated for the spectrum dense and scarce environments. An interference factor is introduced to measure the protection effects on the primary users. The proposed throughput model approximates the simulated communication under requirements of small errors in the spectrum dense environment and the spectrum scarce environment, where the sensitivity analysis is implemented. The proposed RA-OLS outperforms the static communication scheme in terms of the utilization rate by over 50% in case when multiple links are available. It also enables the collaborative communication when the spectral resources are in scarcity. The impacts from diverse parameters on the RA-OLS communication performance are analyzed.en_UK
dc.identifier.citationXu Z, Petrunin I, Tsourdos A. (2021) Modeling and performance analysis of opportunistic link selection for UAV communication. Sensors, Volume 21, Issue 2, Article number 534en_UK
dc.identifier.issn1424-8220
dc.identifier.urihttps://doi.org/10.3390/s21020534
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16329
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectcognitive communicationen_UK
dc.subjectopportunistic spectrum accessen_UK
dc.subjectUAV communicationen_UK
dc.subjectair-to-ground communicationen_UK
dc.subjectspectrum sharingen_UK
dc.subjectspectrum managementen_UK
dc.subjectspectrum scarce operationen_UK
dc.titleModeling and performance analysis of opportunistic link selection for UAV communicationen_UK
dc.typeArticleen_UK

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