1.
Smith, Peter J.; Inwood, Amy S.; Matthaiou, Michail; Senanayake, Rajitha
Dimensional Scaling Laws for Continuous Fluid Antenna Systems Journal Article
In: IEEE Wireless Communications Letters, vol. 14, no. 7, pp. 2004–2008, 2025, ISSN: 2162-2345.
Abstract | Links | BibTeX | Tags: 3D antenna geometries, Antennas, Correlation, Fluid antenna systems, Fluids, high SNR probability, random fields, Rayleigh channels, Rayleigh fading, Shape, Signal to noise ratio, Tail, Three-dimensional displays, Training, Wireless communication
@article{smith_dimensional_2025,
title = {Dimensional Scaling Laws for Continuous Fluid Antenna Systems},
author = {Peter J. Smith and Amy S. Inwood and Michail Matthaiou and Rajitha Senanayake},
url = {https://ieeexplore.ieee.org/document/10965723},
doi = {10.1109/LWC.2025.3560861},
issn = {2162-2345},
year = {2025},
date = {2025-07-01},
urldate = {2025-10-08},
journal = {IEEE Wireless Communications Letters},
volume = {14},
number = {7},
pages = {2004–2008},
abstract = {Consider the signal-to-noise ratio (SNR) of a continuous fluid antenna system (CFAS) operating over a Rayleigh fading channel. In this letter, we extend traditional system assumptions and consider spatially coherent isotropic correlation, continuous positioning of the antenna rather than discrete, and the use of multi-dimensional space (1D, 2D and 3D). By focusing on the upper tail of the received SNR distribution (the high SNR probability (HSP)), we are able to derive asymptotically exact closed-form formulas for the HSP. Finally, these results lead to scaling laws which describe the increase in the HSP as we employ more dimensions and the optimal CFAS dimensions.},
keywords = {3D antenna geometries, Antennas, Correlation, Fluid antenna systems, Fluids, high SNR probability, random fields, Rayleigh channels, Rayleigh fading, Shape, Signal to noise ratio, Tail, Three-dimensional displays, Training, Wireless communication},
pubstate = {published},
tppubtype = {article}
}
Consider the signal-to-noise ratio (SNR) of a continuous fluid antenna system (CFAS) operating over a Rayleigh fading channel. In this letter, we extend traditional system assumptions and consider spatially coherent isotropic correlation, continuous positioning of the antenna rather than discrete, and the use of multi-dimensional space (1D, 2D and 3D). By focusing on the upper tail of the received SNR distribution (the high SNR probability (HSP)), we are able to derive asymptotically exact closed-form formulas for the HSP. Finally, these results lead to scaling laws which describe the increase in the HSP as we employ more dimensions and the optimal CFAS dimensions.