University of Oulu

Kokkoniemi, J., Lehtomäki, J. & Juntti, M. A line-of-sight channel model for the 100–450 gigahertz frequency band. J Wireless Com Network 2021, 88 (2021).

A line-of-sight channel model for the 100–450 gigahertz frequency band

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Author: Kokkoniemi, Joonas1; Lehtomäki, Janne1; Juntti, Markku1
Organizations: 1Centre for Wireless Communications (CWC), University of Oulu, P.O. Box 4500, 90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.1 MB)
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Language: English
Published: Springer Nature, 2021
Publish Date: 2021-05-03


This paper documents a simple parametric polynomial line-of-sight channel model for 100—450 GHz band. The band comprises two popular beyond fifth generation (B5G) frequency bands, namely, the D band (110—170 GHz) and the low-THz band (around 275—325 GHz). The main focus herein is to derive a simple, compact, and accurate molecular absorption loss model for the 100—450 GHz band. The derived model relies on simple absorption line shape functions that are fitted to the actual response given by complex but exact database approach. The model is also reducible for particular sub-bands within the full range of 100—450 GHz, further simplifying the absorption loss estimate. The proposed model is shown to be very accurate by benchmarking it against the exact response and the similar models given by International Telecommunication Union Radio Communication Sector. The loss is shown to be within ±2 dBs from the exact response for one kilometer link in highly humid environment. Therefore, its accuracy is even much better in the case of usually considered shorter range future B5G wireless systems.

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Series: EURASIP journal on wireless communications and networking
ISSN: 1687-1472
ISSN-E: 1687-1499
ISSN-L: 1687-1472
Volume: 2021
Issue: 1
Article number: 88
DOI: 10.1186/s13638-021-01974-8
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported in part by the Horizon 2020, European Union’s Framework Programme for Research and Innovation, under Grant Agreement No. 761794 (TERRANOVA) and No. 871464 (ARIADNE). It was also supported in part by the Academy of Finland 6Genesis Flagship under Grant No. 318927.
EU Grant Number: (761794) TERRANOVA - Terabit/s Wireless Connectivity by TeraHertz innovative technologies to deliver Optical Network Quality of Experience in Systems beyond 5G
(871464) ARIADNE - Artificial Intelligence Aided D-band Network for 5G Long Term Evolution
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit