Xu, H;
Wong, KK;
New, WK;
Tong, KF;
(2023)
On Outage Probability for Two-User Fluid Antenna Multiple Access.
In:
IEEE International Conference on Communications.
(pp. pp. 2246-2251).
IEEE: Rome, Italy.
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Abstract
Fluid antenna system (FAS) is an emerging flexible antenna technology that provides a new way for multiple access. In fluid antenna multiple access (FAMA), each user switches its fluid antenna to the location (i.e., port) in which the interfering users suffer from a deep fade for interference-free communication. Previous work has attempted to understand the interference immunity of FAMA but the results are limited to simplified spatial correlation models. In this paper, we revisit the FAMA system with only two users by characterizing the joint spatial correlation amongst all the ports. Using this model, however, the number of variables determining each channel coefficient scales with that of ports, hence making the analysis intractable. To tackle this, we first show that the channel model could be considerably simplified by taking into account only a few variables, and then derive the outage probability for the considered FAMA system by using the approximated model. Simulation results show that the simplified channel model can quickly approach the exact one and that the outage probability decreases with the number of ports but has an error floor unless the size of fluid antenna is increased.
| Type: | Proceedings paper |
|---|---|
| Title: | On Outage Probability for Two-User Fluid Antenna Multiple Access |
| Event: | ICC 2023 - IEEE International Conference on Communications |
| Dates: | 28 May 2023 - 1 Jun 2023 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ICC45041.2023.10279640 |
| Publisher version: | http://dx.doi.org/10.1109/icc45041.2023.10279640 |
| 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: | Fluids , Correlation , Simulation , Interference , Probability , Eigenvalues and eigenfunctions , Power system reliability |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science 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/10183742 |
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