Yao, J;
Zheng, J;
Wu, T;
Jin, M;
Yuen, C;
Wong, KK;
Adachi, F;
(2025)
FAS-RIS Communication: Model, Analysis, and Optimization.
IEEE Transactions on Vehicular Technology
10.1109/TVT.2025.3537294.
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Abstract
This correspondence investigates the novel fluid antenna system (FAS) technology, combining with reconfigurable intelligent surface (RIS) for wireless communications, where a base station (BS) communicates with a FAS-enabled user with the assistance of a RIS. To analyze this technology, we derive the outage probability based on the block-diagonal matrix approximation (BDMA) model. With this, we obtain the upper bound, lower bound, and asymptotic approximation of the outage probability to gain more insights. Moreover, we design the phase shift matrix of the RIS in order to minimize the system outage probability. Simulation results confirm the accuracy of our approximations and that the proposed schemes outperform benchmarks significantly.
| Type: | Article |
|---|---|
| Title: | FAS-RIS Communication: Model, Analysis, and Optimization |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TVT.2025.3537294 |
| Publisher version: | https://doi.org/10.1109/tvt.2025.3537294 |
| 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 (FAS), outage probability, reconfigurable intelligent surface (RIS) |
| 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/10204639 |
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