Ghadi, Farshad Rostami;
Wong, Kai-Kit;
López-Martínez, F Javier;
Chae, Chan-Byoung;
Tong, Kin-Fai;
Zhang, Yangyang;
(2023)
Fluid Antenna-Assisted Dirty Multiple Access Channels over Composite Fading.
IEEE Communications Letters
10.1109/lcomm.2023.3344296.
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Abstract
This letter investigates the application of the emerging fluid antenna (FA) technology in multiuser communication systems when side information (SI) is known at the transmitters. We consider a K -user dirty multiple access channel (DMAC) with non-causally known SI at the transmitters, where K users send independent messages to a common receiver with a FA capable of changing its location depending on the channel condition. By connecting Jakes’ model to copula theory through Spearman’s ρ rank correlation coefficient, we accurately describe the spatial correlation between the FA channels, and derive a closed-form expression for the outage probability (OP) under Fisher-Snedecor F fading. Results confirm that a FA-aided receiver can achieve better performance in multiuser communication: ( i ) increasing the number of FA ports as well as FA size can significantly lower the OP; ( ii ) FA can support a large number of users using only one FA at the common receiver in a few wavelengths of space.
| Type: | Article |
|---|---|
| Title: | Fluid Antenna-Assisted Dirty Multiple Access Channels over Composite Fading |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/lcomm.2023.3344296 |
| Publisher version: | https://doi.org/10.1109/LCOMM.2023.3344296 |
| 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, multiple access channel, Fisher-Snedecor F fading, copula theory, outage probability |
| 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/10184782 |
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