arXiv:2506.09268cs.NIcs.AI2025-06

用强化学习动态调度空天地网络,兼顾容量与节能。

A Multi-Armed Bandit Framework for Online Optimisation in Green Integrated Terrestrial and Non-Terrestrial Networks

  • 基于多臂赌博机模型实时优化带宽、用户连接和基站休眠
  • 高峰时段降低未满足用户比例,低峰期提升19%吞吐量并省电5%
  • 适合关注绿色通信与智能资源调度的研究者

空天地一体化网络架构为扩展覆盖和提升容量提供了可行方案。尽管非地面网络(NTN)主要用于此目的,但其在缓解地面网络负载及实现节能运行方面的潜力尚未得到充分重视。针对地面部署日益密集带来的能耗问题,本文提出一种新型在线优化框架,基于多臂赌博机(MAB)建模,并采用带反馈约束的在线镜面下降算法(BCOMD)。该方法自适应优化带宽分配、用户设备关联及宏基站点(MBS)关闭等关键参数,实现实时平衡网络容量与能效。24小时系统级仿真表明,所提框架显著降低了高峰时段未满足用户比例,在低流量时段实现最高19%的吞吐量增益和5%的能耗节约,优于遵循3GPP标准的常规配置。

原文摘要 · Abstract (English)

Integrated terrestrial and non-terrestrial network (TN-NTN) architectures offer a promising solution for expanding coverage and improving capacity for the network. While non-terrestrial networks (NTNs) are primarily exploited for these specific reasons, their role in alleviating terrestrial network (TN) load and enabling energy-efficient operation has received comparatively less attention. In light of growing concerns associated with the densification of terrestrial deployments, this work aims to explore the potential of NTNs in supporting a more sustainable network. In this paper, we propose a novel online optimisation framework for integrated TN-NTN architectures, built on a multi-armed bandit (MAB) formulation and leveraging the Bandit-feedback Constrained Online Mirror Descent (BCOMD) algorithm. Our approach adaptively optimises key system parameters--including bandwidth allocation, user equipment (UE) association, and macro base station (MBS) shutdown--to balance network capacity and energy efficiency in real time. Extensive system-level simulations over a 24-hour period show that our framework significantly reduces the proportion of unsatisfied UEs during peak hours and achieves up to 19% throughput gains and 5% energy savings in low-traffic periods, outperforming standard network settings following 3GPP recommendations.

空天地网络节能调度在线优化

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