University of Oulu

Joonas Kokkoniemi, Alexandros-Apostolos A. Boulogeorgos, Mubarak Aminu, Janne Lehtomäki, Angeliki Alexiou, Markku Juntti, Impact of beam misalignment on THz wireless systems, Nano Communication Networks, Volume 24, 2020, 100302, ISSN 1878-7789,

Impact of beam misalignment on THz wireless systems

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Author: Kokkoniemi, Joonas1; Boulogeorgos, Alexandros-Apostolos A.2; Aminu, Mubarak1;
Organizations: 1Centre for Wireless Communications (CWC), University of Oulu, P.O. Box 4500, 90014 Oulu, Finland
2Department of Digital Systems, University of Piraeus, Piraeus 18534, Greece
Format: article
Version: accepted version
Access: embargoed
Persistent link:
Language: English
Published: Elsevier, 2020
Publish Date: 2022-04-20


This paper focuses on deriving expected values for the transmit (TX) and receive (RX) antenna gains in terahertz (THz) wireless fronthaul and backhaul links under stochastic beam misalignment, which is created by antenna movement coming from the building or antenna mast swaying. In particular, four different antenna movement models are considered: (i) Gaussian motion of a single antenna; (ii) Gaussian motion of both the TX and RX antennas; (iii) 2-dimensional (2D) Gaussian motion of a single antenna; and (iv) 2D Gaussian motion of the one antenna and one-dimensional Gaussian motion of the other. Models (i) and (iii) depict fronthaul scenarios, in which the access point is usually installed in high buildings or in road-sides. Models (ii) and (iv) may model backhaul applications. To verify the analysis and quantify the impact of beam misalignment, analytic and simulations results are provided that reveal that the antenna motion can cause a significant degradation on the expected value of the TX and RX antenna gains. Moreover, the derived models are used in a link budget assessment and insightful results for a number of realistic scenarios are given. These result clearly highlight the impact of beam misalignment in the received signal quality as well as the importance of taking into account the beam misalignment and using the correct antenna movement model, when evaluating its impact.

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Series: Nano communication networks
ISSN: 1878-7789
ISSN-E: 1878-7797
ISSN-L: 1878-7789
Volume: 24
Article number: 100302
DOI: 10.1016/j.nancom.2020.100302
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This project (TERRANOVA) was supported by Horizon 2020, European Union’s Framework Programme for Research and Innovation, under grant agreement no. 761794. This work 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
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © 2020 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license