Ghadi, FR;
Kaveh, M;
Hernando-Gallego, F;
Martín, D;
Wong, KK;
Chae, CB;
(2025)
UAV-Relay Assisted RSMA Fluid Antenna System:Outage Probability Analysis.
IEEE Wireless Communications Letters
10.1109/LWC.2025.3582753.
(In press).
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Abstract
This letter studies the impact of fluid antenna system (FAS) technology on the performance of unmanned aerial vehicle (UAV)-assisted multiuser communication networks. Specifically, we consider a scenario where a fixed-position antenna (FPA) base station (BS) serves K FAS-equipped users with the assistance of a UAV acting as an aerial relay. The BS employs rate-splitting multiple access (RSMA), while the UAV operates in half-duplex (HD) mode using the decode-and-forward (DF) strategy. For this system, we derive a compact analytical expression for the outage probability (OP) and its asymptotic behavior in the high signal-to-noise ratio (SNR) regime, leveraging the multivariate t-distribution. Our results show how deploying FAS at ground users (GUs) in UAV-aided communications improves overall system performance compared to using FPA GUs.
| Type: | Article |
|---|---|
| Title: | UAV-Relay Assisted RSMA Fluid Antenna System:Outage Probability Analysis |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/LWC.2025.3582753 |
| Publisher version: | https://doi.org/10.1109/LWC.2025.3582753 |
| 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. |
| 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/10210930 |
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