🤖 AI Summary
This work proposes a novel framework integrating large language models (LLMs) with deep reinforcement learning (DRL) to address the degraded resource allocation performance of non-terrestrial networks under adverse weather conditions and the limited generalization capability of conventional approaches. The method uniquely employs an LLM as a high-level coordinator that dynamically shapes the reward function of DRL agents through semantically informed guidance, enabling efficient and adaptive resource scheduling. Experimental results demonstrate that, compared to traditional DRL methods, the proposed approach achieves an average performance improvement of 40% in terms of throughput, fairness, and outage probability under normal weather conditions, with gains increasing to 64% under extreme weather. These results highlight a significant enhancement in both robustness and generalization of the learned policy.
📝 Abstract
Large AI Model (LAM) have been proposed to applications of Non-Terrestrial Networks (NTN), that offer better performance with its great generalization and reduced task specific trainings. In this paper, we propose a Deep Reinforcement Learning (DRL) agent that is guided by a Large Language Model (LLM). The LLM operates as a high level coordinator that generates textual guidance that shape the reward of the DRL agent during training. The results show that the LAM-DRL outperforms the traditional DRL by 40% in nominal weather scenarios and 64% in extreme weather scenarios compared to heuristics in terms of throughput, fairness, and outage probability.