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1.重庆邮电大学通信与信息工程学院,重庆 400065
2.重庆市移动通信技术重点实验室,重庆 400065
Received:30 January 2024,
Revised:2024-09-24,
Published:25 April 2025
移动端阅览
张思雅, 柴蓉, 梁承超, 等. 基于成本函数优化的多波束卫星通信系统波束调度及资源分配算法[J]. 电子学报, 2025, 53(04): 1232-1240.
ZHANG Si-ya, CHAI Rong, LIANG Cheng-chao, et al. Cost Function Optimization-Based Beam Scheduling and Resource Allocation Algorithm for Multibeam Satellite Communication Systems[J]. Acta Electronica Sinica, 2025, 53(04): 1232-1240.
张思雅, 柴蓉, 梁承超, 等. 基于成本函数优化的多波束卫星通信系统波束调度及资源分配算法[J]. 电子学报, 2025, 53(04): 1232-1240. DOI:10.12263/DZXB.20240116
ZHANG Si-ya, CHAI Rong, LIANG Cheng-chao, et al. Cost Function Optimization-Based Beam Scheduling and Resource Allocation Algorithm for Multibeam Satellite Communication Systems[J]. Acta Electronica Sinica, 2025, 53(04): 1232-1240. DOI:10.12263/DZXB.20240116
多波束卫星通信系统由于其可实现高吞吐量及高效资源利用而受到广泛关注.本文研究多波束卫星通信系统的波束调度及资源分配问题,综合考虑用户地理位置及业务特性,提出基于Optics的用户初始分组算法.为提升波束覆盖性能,设计基于最小圆的卫星波位点及覆盖半径优化方案.基于所确定的用户分组策略,定义系统成本函数,并将联合波束调度、子信道选择及功率分配问题建模为系统成本函数最小化问题.为求解所建模型的优化问题,首先引入聚合节点描述各用户组特性,并提出基于参数化深度
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网络的联合波束调度及功率分配算法;然后基于所确定的用户组波束调度及功率分配策略,提出基于双深度
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学习算法及基于近端策略优化算法的联合子信道及功率分配策略.仿真结果验证了所提算法的
有效性.
Multibeam satellite communication systems have received widespread attentions due to their high throughput and efficient resource utilization. This paper investigates the beam scheduling and resource allocation problem in multibeam satellite communication system. By jointly considering user position and service characteristics
an optics-based initial user grouping algorithm is proposed. To enhance beam coverage performance
a minimum circle algorithm is proposed to optimally design satellite beam positions and coverage radius. Given the determined user grouping strategy
system cost function is defined and the joint beam scheduling
sub-channel allocation and power allocation problem is formulated as a system cost function minimization problem. To solve the formulated optimization problem
aggregate nodes are introduced to describe the characteristics of user groups
and a parameterized deep
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-network-based joint beam scheduling and power allocation algorithm is proposed. Based on the obtained user group beam scheduling and power allocation strategy
a double deep
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-network algorithm and a proximal policy optimization-based joint subchannel and power allocation strategies are proposed. Simulation results validate the effectiveness of the proposed algorithms.
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ZHAO D , QIN H , XIN N , et al . Flexible resource management in high-throughput satellite communication systems: A two-stage machine learning framework [J ] . IEEE Transactions on Communications , 2023 , 71 ( 5 ): 2724 - 2739 .
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LIAO X L , HU X , LIU Z J , et al . Distributed intelligence: A verification for multi-agent DRL-based multibeam satellite resource allocation [J ] . IEEE Communications Letters , 2020 , 24 ( 12 ): 2785 - 2789 .
DENG D H , WANG C W , PANG M L , et al . Dynamic resource allocation with deep reinforcement learning in multibeam satellite communication [J ] . IEEE Wireless Communications Letters , 2023 , 12 ( 1 ): 75 - 79 .
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LIN Z Y , NI Z Y , KUANG L L , et al . Dynamic beam pattern and bandwidth allocation based on multi-agent deep reinforcement learning for beam hopping satellite systems [J ] . IEEE Transactions on Vehicular Technology , 2022 , 71 ( 4 ): 3917 - 3930 .
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