Zou, Jiaqi;
Xu, Hao;
Wang, Chao;
Xu, Lvxin;
Sun, Songlin;
Meng, Kaitao;
Masouros, Christos;
(2024)
Shifting the ISAC Trade-Off With Fluid Antenna Systems.
IEEE Wireless Communications Letters
, 13
(12)
pp. 3479-3483.
10.1109/lwc.2024.3473991.
Preview |
Text
Masouros_Shifting the ISAC Trade-Off With Fluid Antenna Systems_AAM2.pdf Download (616kB) | Preview |
Abstract
As an emerging reconfigurable antenna technology, fluid antenna system (FAS) has the capability of improving both sensing and communication (S&C) performance by switching the antenna position over the available ports. This increased spatial degree-of-freedom (DoF) by FAS can be translated into enlarging the trade-off region for integrated sensing and communication (ISAC). In this letter, we propose a signal model for FAS-enabled ISAC and jointly optimize the transmit beamforming and port selection of FAS. In particular, our objective is to minimize the transmit power, while satisfying both communication and sensing requirements. To tackle this, an efficient iterative algorithm based on sparse optimization, convex approximation, and a penalty approach is developed. Our simulation results illustrate that the proposed scheme can attain 33% reductions in the transmit power with guaranteed S&C performance, showing the great potential of FAS for striking a balance between S&C in ISAC systems.
| Type: | Article |
|---|---|
| Title: | Shifting the ISAC Trade-Off With Fluid Antenna Systems |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/lwc.2024.3473991 |
| Publisher version: | http://dx.doi.org/10.1109/lwc.2024.3473991 |
| 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, ISAC, port selection |
| 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/10198506 |
Archive Staff Only
 |
View Item |
