Modelling and analysis of coverage for unmanned aerial vehicle base stations

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Since the analysis of cell coverage faces complex environments in unmanned aerial vehicle base station (UAV-BS) systems, general coverage probability in a typical cell is derived to analyse a UAV-BS multi-tier network, and this coverage probability is closely related with power difference among UAV-BSs, two-dimension (2D) and three-dimension (3D) UAV-BS deployment, and general interference fading models. Especially, closed-form coverage probability expressions are also derived in the form of 2D scenario and 3D scenario, when the interference fading coefficient is assumed to follow a Gamma distribution and an exponential distribution, respectively. It shows that there exists maximum spectral efficiency density (SED) as the BS density increases, and such a BS density achieving the max-SED is independent of noise power, but is affected by various propagation parameters.
Publisher
INST ENGINEERING TECHNOLOGY-IET
Issue Date
2020-10
Language
English
Article Type
Article
Citation

IET COMMUNICATIONS, v.14, no.17, pp.2878 - 2888

ISSN
1751-8628
DOI
10.1049/iet-com.2019.1094
URI
http://hdl.handle.net/10203/279199
Appears in Collection
EE-Journal Papers(저널논문)
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