A Tractable Framework for Coverage Analysis of Cellular-Connected UAV Networks

Yu X, Zhang J, Schober R, Letaief KB (2019)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2019

Publisher: IEEE

Event location: Shanghai CN

ISBN: 978-1-7281-2373-8

DOI: 10.1109/ICCW.2019.8756662

Abstract

Unmanned aerial vehicles (UAVs) have recently found abundant applications in the public and civil domains. To ensure reliable control and navigation, connecting UAVs to controllers via existing cellular network infrastructure, i.e., ground base stations (GBSs), has been proposed as a promising solution. Nevertheless, it is highly challenging to characterize the communication performance of cellular-connected UAVs, due to their unique propagation conditions. This paper proposes a tractable framework for the coverage analysis of cellular-connected UAV networks, which consists of a new blockage model and an effective approach to handle general fading channels. In particular, a line-of-sight (LoS) ball model is proposed to capture the probabilistic propagation in UAV communication systems, and a tractable expression is derived for the Laplace transform of the aggregate interference with general Nakagami fading. This framework leads to a tractable expression for the coverage probability, which in turn helps to investigate the impact of the GBS density. Specifically, a tight lower bound on the optimal density that maximizes the coverage probability is derived. Numerical results show that the proposed LoS ball model is accurate, and the optimal GBS density decreases when the UAV altitude increases.

Authors with CRIS profile

Xianghao Yu Professur für Informationsübertragung Robert Schober Lehrstuhl für Digitale Übertragung (IDC)

Involved external institutions

Hong Kong Polytechnic University (PolyU) CN China (CN) Hong Kong University of Science and Technology (HKUST) / 香港科技大學 CN China (CN)

How to cite

APA:

Yu, X., Zhang, J., Schober, R., & Letaief, K.B. (2019). A Tractable Framework for Coverage Analysis of Cellular-Connected UAV Networks. In IEEE (Eds.), Proceedings of the 2019 IEEE International Conference on Communications Workshops (ICC Workshops). Shanghai, CN: IEEE.

MLA:

Yu, Xianghao, et al. "A Tractable Framework for Coverage Analysis of Cellular-Connected UAV Networks." Proceedings of the 2019 IEEE International Conference on Communications Workshops (ICC Workshops), Shanghai Ed. IEEE, IEEE, 2019.

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