Yang, S;
Xiao, Y;
Yang, P;
Chen, J;
Zammit, S;
Shin, H;
Wong, KK;
(2025)
Fluid Antenna Enabled Space-Time Block Coding With Achievable Rate Optimization.
IEEE Communications Letters
10.1109/LCOMM.2025.3571792.
(In press).
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Abstract
The conventional space-time block coding (STBC) technique offers advantages such as low detection complexity and full-diversity transmission while suffering from a reduced achievable rate. Inspired by the novel concepts of fluid antennas (FAs) exploiting extra spatial flexibility, we propose to maximize the STBC achievable rate by jointly optimizing the positions of transmit and receive FAs. In order to solve the corresponding highly non-convex problem, an alternating optimization (AO) algorithm based on successive convex approximation (SCA) is employed to obtain a locally optimal solution. Simulation results reveal the superiority of the FA-enabled STBC (FA-STBC) system over its fixed-position antenna (FPA) and STBC counterparts within limited FA regions.
| Type: | Article |
|---|---|
| Title: | Fluid Antenna Enabled Space-Time Block Coding With Achievable Rate Optimization |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/LCOMM.2025.3571792 |
| Publisher version: | https://doi.org/10.1109/lcomm.2025.3571792 |
| 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: | Achievable rate, space-time block coding (STBC), fluid antenna (FA), alternating optimization (AO), successive convex approximation (SCA) |
| 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/10209383 |
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