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ThinkMind // ICSNC 2021, The Sixteenth International Conference on Systems and Networks Communications // View article icsnc_2021_1_20_20008


Power Control based Fair Coexistence of LBT-Free 5G New Radio Small Cells with WiGig Networks

Authors:
Rony Kumer Saha

Keywords: 5G; millimeter-wave; unlicensed band; new radio; small cell; IEEE 802.11 ad/ay; power control

Abstract:
In this paper, we present a power control technique to coexist in-building small cells of the Fifth-Generation (5G) New Radio (NR) in the 60 GHz band with the incumbent Access Points (APs) of the IEEE 802.11ad/ay standard, also termed as Wireless Gigabit (WiGig). Small cells are not Listen-Before-Talk (LBT) feature enabled. Moreover, each small cell is equipped with a dual-transceiver, one operating in the 28 GHz band exclusively while the other in the 60 GHz band opportunistically. The proposed technique allows each small cell to operate in the 60 GHz band only to serve its downlink traffic by switching its transmission power either to zero or to a minimum allowable level. The minimum power level results in the interference experienced by a WiGig AP (WiAP) that does not exceed its prior interference threshold level set by the WiGig operator to ensure its fairness while coexisting with a small cell. We derive average capacity, Spectral Efficiency (SE), and Energy Efficiency (EE) metrics for NR small cells. With system-level simulation results, it is shown that the proposed technique improves all these above metrics of small cells considerably while ensuring a fair coexistence of small cells with incumbent WiAPs by limiting the interference at a WiAP to the maximum allowable level (i.e., the interference threshold level).

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2021

Publication date: October 3, 2021

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-895-2

Location: Barcelona, Spain

Dates: from October 3, 2021 to October 7, 2021

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