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Performance Analysis of In-building Small Cell Networks: Carrier Frequency Band Perspective

Authors:
Rony Kumer Saha

Keywords: 6G; carrier frequency; path loss; in-building; small cell; millimeter-wave, spectrum reuse; THz band.

Abstract:
In this paper, we present the performance of in-building small cells with the variation of carrier frequency from a low microwave band to a very high Terahertz (THz) band expected for the future Sixth-Generation (6G) mobile networks. We derive the average capacity, Spectral Efficiency (SE), Energy Efficiency (EE), and throughput per user of small cell networks. With extensive simulation results, we evaluate these performance metrics with a change in carrier frequency from a microwave band (i.e., 2 GHz), through a number of Millimeter-Wave (mmWave) bands (i.e., 28 GHz and 60 GHz), to a THz band (i.e., 140 GHz). It is shown that due to the presence of Line-of-Sight (LOS) components and availability of large spectrum bandwidth, the high-frequency mmWave and THz bands can play significant roles in improving the above performance metrics and achieve both SE and EE requirements expected for 6G mobile networks by reusing spectrum of their respective bands for a certain number of buildings of small cells.

Pages: 36 to 40

Copyright: Copyright (c) IARIA, 2021

Publication date: April 18, 2021

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-837-2

Location: Porto, Portugal

Dates: from April 18, 2021 to April 22, 2021