Publication:
The Effect of Rainfall on the UAV Placement for 5G Spectrum in Malaysia

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dc.citedby1
dc.contributor.authorShalaby A.M.en_US
dc.contributor.authorOthman N.S.en_US
dc.contributor.authorid57219433216en_US
dc.contributor.authorid56426823300en_US
dc.date.accessioned2023-05-29T09:38:07Z
dc.date.available2023-05-29T09:38:07Z
dc.date.issued2022
dc.description.abstractIn this paper, the influence of rainfall on the deployment of UAV as an aerial base station in the Malaysia 5G network is studied. The outdoor-to-outdoor and outdoor-to-indoor path loss models are derived by considering the user�s antenna height, rain attenuation, and the wall penetration loss at high frequencies. The problem of finding the UAV 3D placement is formulated with the objective to minimize the total path loss between the UAV and all users. The problem is solved by invoking two algorithms, namely Particle Swarm Optimization (PSO) and Gradient Descent (GD) algorithms. The performance of the proposed algorithms is evaluated by considering two scenarios to determine the optimum location of the UAV, namely outdoor-to-outdoor and outdoor-to-indoor scenarios. The simulation results show that, for the outdoor-to-outdoor scenario, both algorithms resulted in similar UAV 3D placement unlike for the outdoor-to-indoor scenario. Additionally, in both scenarios, the proposed algorithm that invokes PSO requires less iterations to converge to the minimum transmit power compared to that of the algorithm that invokes GD. Moreover, it is also observed that the rain attenuation increases the total path loss for high operating frequencies, namely at 24.9 GHz and 28.1 GHz. Hence, this resulted in an increase of UAV required transmit power. At 28.1 GHz, the presence of rain at the rate of 250 mm/h resulted in an increase of UAV required transmit power by a factor of 4 and 15 for outdoor-to-outdoor and outdoor-to-indoor scenarios, respectively. � 2022 by the authors. Licensee MDPI, Basel, Switzerland.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo681
dc.identifier.doi10.3390/electronics11050681
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85125410472
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85125410472&doi=10.3390%2felectronics11050681&partnerID=40&md5=cb028c45a54775450d18ba2681e3c018
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26954
dc.identifier.volume11
dc.publisherMDPIen_US
dc.relation.ispartofAll Open Access, Gold
dc.sourceScopus
dc.sourcetitleElectronics (Switzerland)
dc.titleThe Effect of Rainfall on the UAV Placement for 5G Spectrum in Malaysiaen_US
dc.typeArticleen_US
dspace.entity.typePublication
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