Yang, Halvin;
(2025)
Performance Analysis of Fluid Antenna Communication Systems For Future Mobile Networks.
Doctoral thesis (Ph.D), UCL (University College London).
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Abstract
With 6G communications comes a significant increase in standards and performance metrics when compared to 5G communications, with some 5G targets being increased by a factor of 10. Requirements such as high data rates of 1 terabit per second or higher energy efficiency are not achievable with current technologies used in 5G like massive multiple input multiple-output (MIMO). Therefore, new technologies should be incorporated in order to achieve these performance targets. Fluid an tenna communication systems (FACS) are a new technology that uses a software-controlled antenna called a fluid antenna that is able to repo sition itself in space to one of many predetermined locations, known as ports. This thesis aims to expand on existing work done in FACS and indicate its viability in the future of communication systems by estab lishing a more accurate model as well as looking at its integration with existing or emerging technologies like reflective intelligent surfaces (RIS) or modulation techniques like spatial modulation (SM). Initially, this thesis aims to establish a more accurate FACS model with the consideration of noise in a multi-user communication system where the mobile devices each have a single fluid antenna. Due to the complexity of analysis with the incorporation of noise, new approxima tions like the Gauss-Laguerre quadrature are used in order to obtain a closed-form solution. Then this thesis aims to augment FACS with ex isting technologies, with the introduction of a novel form of index modu lation called position index modulation which aims to increase the num ber of bits transmitted per symbol by assigning an index to different port groups. Finally, this thesis looks at integrating FACS with another emerging technology, RIS. RIS can augment the performance of FACS by influencing the nature of multipaths in the channel in a way that maximises the effectiveness of FACS
| Type: | Thesis (Doctoral) |
|---|---|
| Qualification: | Ph.D |
| Title: | Performance Analysis of Fluid Antenna Communication Systems For Future Mobile Networks |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | Copyright © The Author 2025. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms. Access may initially be restricted at the author’s request. |
| 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/10205361 |
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