Edward Wu, J;
Fice, MJ;
(2025)
Impact Analysis on Terahertz Communication From Micro-Mobility in Six Degrees of Freedom of Mobile User Equipment Through Experiment and Modelling.
IEEE Transactions on Vehicular Technology
10.1109/TVT.2025.3587490.
(In press).
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Abstract
Terahertz (THz) wireless technology, leveraging highly directional antennas, is a promising solution for future cellular networks. However, its susceptibility to micromobility-induced misalignment poses a significant challenge. This study presents a novel experimental framework for tracking user equipment (UE) motion across all six degrees of freedom (DOF) using laser-based video analysis. Micromobility characteristics are examined across various use cases, including holding, typing, reading, watching, and gaming, analysing motion distributions, axis correlations, and directional dependencies. A non-parametric 3D Markov Chain Monte Carlo (MCMC) model is developed, demonstrating the ability to replicate outage patterns when using multiple iterations. A link budget analysis of a photonically enabled THz system reveals substantial performance degradation due to micromobility, even in static holding scenarios. While increasing antenna coverage and implementing beamforming reduces misalignment effects, they do not eliminate outages, highlighting the need for further investigations of strategies to combat the effects of micromobility.
| Type: | Article |
|---|---|
| Title: | Impact Analysis on Terahertz Communication From Micro-Mobility in Six Degrees of Freedom of Mobile User Equipment Through Experiment and Modelling |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TVT.2025.3587490 |
| Publisher version: | https://doi.org/10.1109/tvt.2025.3587490 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Micromobility, Measurement by laser beam, Lasers, Terahertz communications, Trajectory, Terahertz radiation, Solid modeling, Data models, Cameras, Wireless communication |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10214865 |
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