Ghadi, Farshad Rostami;
Wong, Kai-Kit;
López-Martínez, F Javier;
Tong, Kin-Fai;
(2023)
Copula-based Performance Analysis for Fluid Antenna Systems under Arbitrary Fading Channels.
IEEE Communications Letters
10.1109/lcomm.2023.3316359.
(In press).
Preview |
Text
Copula-based_Performance_Analysis_for_Fluid_Antenna_Systems_under_Arbitrary_Fading_Channels.pdf - Accepted Version Download (402kB) | Preview |
Abstract
In this letter, we study the performance of a single-user fluid antenna system (FAS) under arbitrary fading distributions, in which the fading channel coefficients over the ports are correlated. We adopt copula theory to model the structure of dependency between fading coefficients. Specifically, we first derive an exact closed-from expression for the outage probability in the most general case, i.e., for any arbitrary choice of fading distribution and copula. Afterwards, for an important specific case, we analyze the performance of the outage probability under correlated Nakagami- m fading channels by exploiting popular Archimedean copulas, namely, Frank, Clayton, and Gumbel. The results confirm that the spatial correlation dependency structure for the FAS is a key factor to determine its performance, which is natively captured through the choice of copula.
| Type: | Article |
|---|---|
| Title: | Copula-based Performance Analysis for Fluid Antenna Systems under Arbitrary Fading Channels |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/lcomm.2023.3316359 |
| Publisher version: | https://doi.org/10.1109/LCOMM.2023.3316359 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. - The work of Wong and Tong is supported by the Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/W026813/1. For the purpose of open access, the authors will apply a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising. |
| Keywords: | Fluid antenna system, arbitrary fading, correlation, outage probability, Archimedean copulas |
| 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-pp.ucl.ac.uk/id/eprint/10177504 |
Archive Staff Only
 |
View Item |
