Abstract
Fluid antenna systems (FASs) offer significant spatial flexibility, yet securing them against eavesdropping is critical for practical FAS deployment in military, satellite, and internet-of-things networks. Although large language model (LLM)-assisted genetic algorithms (LLM-GAs) can address this secure FAS port selection problem, whether further algorithmic improvement is possible warrants deeper investigation. To this end, we propose a memetic algorithm based on reflective evolution (ReEvo). Unlike the state-of-the-art LLM-GAs, which design only crossover or mutation operators with an LLM, our algorithm leverages an LLM to evolve dedicated crossover, mutation, and local-search operators offline. These operators are then embedded into a memetic search framework, thereby obviating any online LLM queries during execution. Simulation results at equal generation counts demonstrate that our proposed algorithm achieves a higher secure sum-rate than the conventional GA and the state-of-the-art LLM-GAs.
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Publication details
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- Green open access
Cite this article
APA 7
Xu, H., Dang, Z., & Zhang, T. (2026). Beyond LLM-GA: Secure Fluid Antenna Systems with ReEvo-Designed Memetic Algorithm. https://omanscience.com/en/articles/beyond-llm-ga-secure-fluid-antenna-systems-with-reevo-designed-memetic-algorithm
MLA 9
Xu, Hanyong, et al. "Beyond LLM-GA: Secure Fluid Antenna Systems with ReEvo-Designed Memetic Algorithm." https://omanscience.com/en/articles/beyond-llm-ga-secure-fluid-antenna-systems-with-reevo-designed-memetic-algorithm.
Chicago (author–date)
Xu, Hanyong, Zhaolai Dang, and Tong Zhang. 2026. "Beyond LLM-GA: Secure Fluid Antenna Systems with ReEvo-Designed Memetic Algorithm." https://omanscience.com/en/articles/beyond-llm-ga-secure-fluid-antenna-systems-with-reevo-designed-memetic-algorithm.
Harvard
Xu, H., Dang, Z. and Zhang, T. (2026) 'Beyond LLM-GA: Secure Fluid Antenna Systems with ReEvo-Designed Memetic Algorithm', Available at: https://omanscience.com/en/articles/beyond-llm-ga-secure-fluid-antenna-systems-with-reevo-designed-memetic-algorithm.
Vancouver
Xu H, Dang Z, Zhang T. Beyond LLM-GA: Secure Fluid Antenna Systems with ReEvo-Designed Memetic Algorithm. https://omanscience.com/en/articles/beyond-llm-ga-secure-fluid-antenna-systems-with-reevo-designed-memetic-algorithm
IEEE
H. Xu, Z. Dang, and T. Zhang, "Beyond LLM-GA: Secure Fluid Antenna Systems with ReEvo-Designed Memetic Algorithm," https://omanscience.com/en/articles/beyond-llm-ga-secure-fluid-antenna-systems-with-reevo-designed-memetic-algorithm.