Tang, Boyi;
Xu, Hao;
Wong, Kai-Kit;
You, Li;
Tang, Jie;
Zhang, Yangyang;
Shin, Hyundong;
(2025)
Power Minimization of Multiuser FAS-RIS Downlink System.
IEEE Transactions on Vehicular Technology
pp. 1-6.
10.1109/TVT.2025.3567947.
(In press).
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Abstract
Both fluid antenna system (FAS) and reconfigurable intelligent surface (RIS) are promising technologies that enhance the performance of wireless communications. This letter studies the power minimization problem under quality of service (QoS) constraints in a multiuser FAS-RIS-aided system, where each user is equipped with a planar FAS, and the base station (BS) has multiple fixed-position antennas (FPAs). The precoding vectors, the RIS elements, and the user antenna positions are iteratively optimized to minimize the transmit power. Our simulation results show that the proposed approaches require much less transmit power to achieve the QoS than the FPA counterpart.
| Type: | Article |
|---|---|
| Title: | Power Minimization of Multiuser FAS-RIS Downlink System |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TVT.2025.3567947 |
| Publisher version: | https://doi.org/10.1109/tvt.2025.3567947 |
| 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: | Fluid antenna system, reconfigurable intelligent surface, antenna position optimization, power minimization |
| 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/10208756 |
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