Abdou, SBS;
New, WK;
Leow, CY;
Won, S;
Wong, KK;
Ding, Z;
(2024)
Sum-Rate Maximization for UAV Relay-Aided Fluid Antenna System with NOMA.
In:
2024 IEEE 7th International Symposium on Telecommunication Technologies: Exploring Future Frontiers in Telecommunication and Vehicular Technologies, ISTT 2024.
(pp. pp. 53-58).
IEEE: Langkawi Island, Malaysia.
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Abstract
Fluid Antenna System (FAS), Non-Orthogonal Multiple Access (NOMA), and Unmanned Aerial Vehicle (UAV) have been explored as promising technologies for sixth-generation (6G) wireless networks. However, a single technology alone will not be sufficient to meet the stringent performance requirements of 6G. Thus, in this paper, we propose a NOMA-based UAV Relay-Aided FAS to address this challenge. Specifically, we jointly optimize the active port, power allocation, and UAV altitude to maximize the achievable sum-rate of Ground Users (GUs) while satisfying minimum rate requirements. To tackle this non-convex optimization problem, we decouple it into two sub-problems: a large-scale fading optimization problem and a small-scale fading optimization problem. We demonstrate that the large-scale fading problem can be solved using a one-dimensional search method, while the small-scale fading problem can be addressed with closed-form expressions. Our simulation results show that FAS consistently outperforms Traditional Antenna System (TAS). Moreover, the combination of FAS and NOMA greatly benefits from the joint optimization of both small-scale and large-scale fadings in UAV relay-aided communications, resulting in substantial performance improvements over the existing TAS and Orthogonal Multiple Access (OMA) combination.
| Type: | Proceedings paper |
|---|---|
| Title: | Sum-Rate Maximization for UAV Relay-Aided Fluid Antenna System with NOMA |
| Event: | 2024 IEEE 7th International Symposium on Telecommunication Technologies (ISTT) |
| Dates: | 21 Oct 2024 - 22 Oct 2024 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ISTT63363.2024.10750660 |
| Publisher version: | https://doi.org/10.1109/istt63363.2024.10750660 |
| 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: | 6G, UAV Communications, Fluid Antenna System, Non-Orthogonal Multiple Access, Relay, Optimization |
| 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/10202883 |
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