Secrecy Performance Analysis of RIS-Aided Fluid Antenna Systems
<|reference_start|>Secrecy Performance Analysis of RIS-Aided Fluid Antenna Systems: This paper examines the impact of emerging fluid antenna systems (FAS) on reconfigurable intelligent surface (RIS)-aided secure communications. Specifically, we consider a classic wiretap channel, where a fixed-antenna transmitter sends confidential information to an FAS-equipped legitimate user with the help of an RIS, while an FAS-equipped eavesdropper attempts to decode the message. To evaluate the proposed wireless scenario, we first introduce the cumulative distribution function (CDF) and probability density function (PDF) of the signal-to-noise ratio (SNR) at each node, using the central limit theorem and the Gaussian copula function. We then derive a compact analytical expression for the secrecy outage probability (SOP). Our numerical results reveal how the incorporation of FAS and RIS can significantly enhance the performance of secure communications.<|reference_end|>
@article{ghadi2024secrecy,
    title={Secrecy Performance Analysis of RIS-Aided Fluid Antenna Systems},
    author={Farshad Rostami Ghadi, Kai-Kit Wong, Masoud Kaveh, F. Javier
  Lopez-Martinez, Wee Kiat New, and Hao Xu},
    journal={arXiv preprint arXiv:2408.14969},
    year={2024},
    archivePrefix={arXiv},
    eprint={2408.14969},
    primaryClass={cs.IT eess.SP math.IT}
}