Home // ICSNC 2020, The Fifteenth International Conference on Systems and Networks Communications // View article
Authors:
Rony Kumer Saha
Keywords: 6G; 28 GHz; cognitive radio; CRN; millimeter-wave; interweave; underlay; hybrid; mobile system; spectrum access.
Abstract:
In this paper, we propose a hybrid interweave-underlay spectrum access technique to share the licensed 28 GHz millimeter-wave spectrum of one Mobile Network Operator (MNO), termed as primary MNO, with small cells in a building of another MNO, termed as secondary MNO, in a country. The proposed technique explores the traditional interweave spectrum access technique by operating a small cell at the maximum transmission power if no user equipment of a primary MNO exists and the traditional underlay spectrum access technique by operating a small cell at a reduced transmission power if a user equipment of a primary MNO exists within the coverage of any in-building small cell of a secondary MNO. We derive average capacity, spectral efficiency, and energy efficiency and carry out extensive numerical and simulation results and analyses for a secondary MNO of a country consisting of four MNOs. It is shown that the proposed technique can improve the spectral efficiency by about 2.82 times, and the energy efficiency by about 73% of the secondary MNO as compared to that of the traditional static licensed spectrum allocation technique that allocates each MNO an equal amount of the 28 GHz millimeter-wave spectrum. Moreover, we show that the proposed technique can satisfy the expected spectral efficiency and energy efficiency requirements for Sixth-Generation (6G) mobile systems by reusing the millimeter-wave spectrum of the secondary MNO to its small cells of roughly 31%, 36%, and 72% less number of buildings than that required by the traditional interweave, underlay, and static licensed spectrum allocation techniques, respectively.
Pages: 42 to 48
Copyright: Copyright (c) IARIA, 2020
Publication date: October 18, 2020
Published in: conference
ISSN: 2163-9027
ISBN: 978-1-61208-828-0
Location: Portugal, Porto
Dates: from October 18, 2020 to October 22, 2020