University of Oulu

A. Shafie, N. Yang, S. Durrani, X. Zhou, C. Han and M. Juntti, "Coverage Analysis for 3D Terahertz Communication Systems," in IEEE Journal on Selected Areas in Communications, vol. 39, no. 6, pp. 1817-1832, June 2021, doi: 10.1109/JSAC.2021.3071840

Coverage analysis for 3D terahertz communication systems

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Author: Shafie, Akram1; Yang, Nan1; Durrani, Salman1;
Organizations: 1School of Engineering, The Australian National University, Canberra, ACT 2600, Australia
2UM-SJTU Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
3Centre for Wireless Communications, University of Oulu, 90014 Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.7 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2021082343807
Language: English
Published: Institute of Electrical and Electronics Engineers, 2021
Publish Date: 2021-08-23
Description:

Abstract

We conduct novel coverage probability analysis of downlink transmission in a three-dimensional (3D) terahertz (THz) communication (THzCom) system. In this system, we address the unique propagation properties in THz band, e.g., absorption loss, super-narrow directional beams, and high vulnerability towards blockage, which are fundamentally different from those at lower frequencies. Different from existing studies, we characterize the performance while considering the effect of 3D directional antennas at both access points (APs) and user equipments (UEs), and the joint impact of the blockage caused by the user itself, moving humans, and wall blockers in a 3D environment. Under such consideration, we develop a tractable analytical framework to derive a new expression for the coverage probability by examining the regions where dominant interferers (i.e., those can cause outage by themselves) can exist, and the average number of interferers existing in these regions. Aided by numerical results, we validate our analysis and reveal that ignoring the impact of the vertical heights of THz devices in the analysis leads to a substantial underestimation of the coverage probability. We also show that it is more worthwhile to increase the antenna directivity at the APs than at the UEs, to produce a more reliable THzCom system.

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Series: IEEE journal on selected areas in communications
ISSN: 0733-8716
ISSN-E: 1558-0008
ISSN-L: 0733-8716
Volume: 39
Issue: 6
Pages: 1817 - 1832
DOI: 10.1109/JSAC.2021.3071840
OADOI: https://oadoi.org/10.1109/JSAC.2021.3071840
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: The work of Nan Yang and Xiangyun Zhou was supported by the Australian Research Council Discovery Project under Grant DP180104062. The work of Chong Han was supported by the National Key Research and Development Program of China under Project 2020YFB1805700. The work of Markku Juntti was supported in part by the Academy of Finland through 6Genesis Flagship under Grant 318927.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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