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Understanding UAV Cellular Communications: From Existing Networks to Massive MIMO
Univ Pompeu Fabra, Spain.
Nokia Bell Labs, Ireland.
Nokia Bell Labs, Ireland.
Nokia Bell Labs, Ireland.
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2018 (English)In: IEEE Access, E-ISSN 2169-3536, Vol. 6, p. 67853-67865Article in journal (Refereed) Published
Abstract [en]

The purpose of this paper is to bestow the reader with a timely study of UAV cellular communications, bridging the gap between the 3GPP standardization status quo and the more forward-looking research. Special emphasis is placed on the downlink command and control (Camp;C) channel to aerial users, whose reliability is deemed of paramount technological importance for the commercial success of UAV cellular communications. Through a realistic side-by-side comparison of two network deployments - a present-day cellular infrastructure versus a next-generation massive MIMO system - a plurality of key facts are cast light upon, with the three main ones summarized as follows: 1) UAV cell selection is essentially driven by the secondary lobes of a base stations radiation pattern, causing UAVs to associate to far-flung cells; 2) over a 10 MHz bandwidth, and for UAV heights of up to 300 m, massive MIMO networks can support 100 kbps Camp;C channels in 74% of the cases when the uplink pilots for channel estimation are reused among base station sites, and in 96% of the cases without pilot reuse across the network; and 3) supporting UAV Camp;C channels can considerably affect the performance of ground users on account of severe pilot contamination, unless suitable power control policies are in place.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2018. Vol. 6, p. 67853-67865
Keywords [en]
Unmanned aerial vehicles (UAVs); command and control channel; cellular networks; massive MIMO; 3GPP
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:liu:diva-153553DOI: 10.1109/ACCESS.2018.2876700ISI: 000452458400001OAI: oai:DiVA.org:liu-153553DiVA, id: diva2:1273174
Note

Funding Agencies|Postdoctoral Junior Leader Fellowship Programme from "la Caixa" Banking Foundation; ELLIIT; CENIIT

Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2019-12-03

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Björnson, Emil
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Citation style
  • apa
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  • de-DE
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  • en-US
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  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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