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On the Optimal 3D Placement of a UAV Base Station for Maximal Coverage of UAV Users

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Document pages: 6 pages

Abstract: Unmanned aerial vehicles (UAVs) can be users that support new applications,or be communication access points that serve terrestrial and or aerial users.In this paper, we focus on the connectivity problem of aerial users when theyare exclusively served by aerial base stations (BS), i.e., UAVBSs.Specifically, the 3D placement problem of a directional antenna equippedUAV-BS, aiming to maximize the number of covered aerial users under a spectrumsharing policy with terrestrial networks, is investigated. Given a knownspectrum sharing policy between the aerial and terrestrial networks, we proposea 3D placement algorithm that achieves optimality. Simulation results show theperformance of our approach, in terms of number of covered aerial users, fordifferent configurations and parameters, such as the spectrum sharing policy,antenna beamwidth, transmit power, and aerial users density. These resultsrepresent novel guidelines for exclusive aerial networks deployment andapplications, distinctively for orthogonal and non-orthogonal spectrum sharingpolicies with terrestrial networks.

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