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基于深度强化学习的低轨卫星跳波束资源分配方法OA

Deep Reinforcement Learning-based Beam Hopping Resource Allocation Method for Low Earth Orbit Satellite

中文摘要英文摘要

数字经济加速发展背景下,低轨卫星因其具备覆盖范围广、相较中高轨卫星更低的传播时延等优势,成为补充地面网络、弥合数字鸿沟的重要手段.由于用户空间分布不均及业务需求的突发性与潮汐性等特征,导致传统静态资源分配方式效率低下.为此,针对低轨卫星跳波束(Beam Hopping,BH)系统中用户需求与资源供给错配问题,提出了基于深度强化学习(Deep Reinforcement Learning,DRL)的资源分配方法.通过构建BH跳变图案与功率分配联合优化问题,设计了融合卷积神经网络(Convolutional Neural Networks,CNN)的深度Q网络(Deep Q-Network,DQN)求解算法,实现了波束跳变与离散功率控制的联合决策.仿真结果表明,在不同功率限制、用户规模及可激活波束数条件下,所提方法能够有效提升系统吞吐量和用户满意度,为低轨卫星通信BH资源智能管理提供了一种高效解决方案.

With the rapid development of digital economy,low earth orbit satellite communication has emerged as a crucial complement to terrestrial networks and an effective means of bridging the digital divide,owing to its wide coverage and relatively low latency compared to medium-and high-orbit satellites.However,the uneven spatial distribution of users,together with the bursty and tidal characteristics of service demands,leads to inefficiencies in conventional static resource allocation methods.To address the mismatch between user demand and resource supply in low earth orbit satellite Beam Hopping(BH)systems,a resource allocation scheme based on Deep Reinforcement Learning(DRL)is proposed.By formulating a joint optimization problem of BH patterns and power allocation,a Deep Q-network(DQN)algorithm integrated with Convolutional Neural Networks(CNN)is designed to achieve joint decision-making of beam switching and discrete power control.Simulation results demonstrate that the proposed method significantly improves system throughput and user satisfaction under various conditions of power constraints,user scales,and the number of active beams,thereby providing an efficient solution for intelligent resource management in LEO satellite communication.

孙天宇;袁硕;孙耀华;彭木根

北京邮电大学信息与通信工程学院,北京 100876北京邮电大学信息与通信工程学院,北京 100876北京邮电大学信息与通信工程学院,北京 100876北京邮电大学信息与通信工程学院,北京 100876

信息技术与安全科学

低轨卫星跳波束深度强化学习资源分配

low earth orbit satelliteBHDRLresource allocation

《无线电工程》 2026 (4)

625-634,10

国家自然科学基金(62501069,62371071)National Natural Science Foundation of China(62501069,62371071)

10.3969/j.issn.1003-3106.2026.04.007

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