摘 要
随着全球信息化进程的加速，偏远地区宽带接入成为缩小数字鸿沟、促进社会经济均衡发展的重要议题然而，传统地面通信网络在地理条件复杂或人口稀少的区域面临建设成本高、覆盖范围有限等问题，难以满足日益增长的宽带需求本研究以卫星通信技术为切入点，探讨其在偏远地区宽带接入中的应用潜力及优化策略通过分析Ka频段和Q/V频段卫星的技术特点，结合高通量卫星（HTS）的容量优势，提出了一种基于多波束协同和动态资源分配的卫星通信系统架构该架构能够有效提升频谱利用率并降低用户接入成本同时，采用仿真建模与实地测试相结合的研究方法，对系统性能进行量化评估结果表明，所提出的架构在吞吐量、时延和公平性等关键指标上均优于传统单波束方案此外，研究还针对雨衰、大气干扰等实际问题引入自适应调制编码（AMC）和混合自动重传请求（HARQ）机制，显著增强了系统的环境适应能力本研究的主要创新点在于首次将多波束协同理念与动态资源分配算法融合应用于偏远地区宽带接入场景，并验证了其技术可行性和经济性这一成果为解决全球偏远地区互联网覆盖难题提供了新思路，具有重要的理论价值和实践意义
关键词：卫星通信、多波束协同、动态资源分配、Ka频段、偏远地区宽带接入
Abstract
With the accelerating process of global informatization, broadband access in remote areas has become a critical issue for narrowing the digital divide and promoting balanced socio-economic development. However, traditional terrestrial communication networks face challenges such as high construction costs and limited coverage in regions with complex geographical conditions or sparse populations, making it difficult to meet the growing demand for broadband services. This study focuses on satellite communication technology, exploring its application potential and optimization strategies for broadband access in remote areas. By analyzing the technical characteristics of Ka-band and Q/V-band satellites in conjunction with the capacity advantages of High-Throughput Satellites (HTS), a satellite communication system architecture based on multi-beam coordination and dynamic resource allocation is proposed. This architecture effectively enhances spectrum utilization while reducing user access costs. A research methodology combining simulation modeling with field testing is adopted to quantitatively evaluate system performance. The results indicate that the proposed architecture outperforms traditional single-beam solutions in key metrics such as throughput, latency, and fairness. Furthermore, this study addresses practical issues like rain attenuation and atmospheric interference by introducing Adaptive Modulation and Coding (AMC) and Hybrid Automatic Repeat Request (HARQ) mechanisms, significantly improving the system's environmental adaptability. The primary innovation of this study lies in the first-time integration of multi-beam coordination concepts with dynamic resource allocation algorithms for remote area broadband access scenarios, demonstrating both technical feasibility and economic viability. This achievement provides new insights into solving the global challenge of internet coverage in remote areas, offering significant theoretical value and practical implications.
Keyword:Satellite Communication、Multi-Beam Coordination、Dynamic Resource Allocation、Ka Band、Remote Area Broadband Access
目 录
引言 1
1卫星通信技术概述 1
1.1卫星通信基本原理 1
1.2卫星通信系统组成 2
1.3卫星通信技术发展现状 2
2偏远地区宽带接入需求分析 3
2.1偏远地区的定义与特征 3
2.2当前宽带接入技术局限性 3
2.3卫星通信在偏远地区的适用性 3
3卫星通信在宽带接入中的关键技术 4
3.1高通量卫星技术应用 4
3.2星地链路优化技术研究 4
3.3用户终端设备设计与实现 5
4卫星通信宽带接入的实际应用案例 5
4.1国内外典型应用案例分析 5
4.2技术实施中的挑战与对策 6
4.3经济与社会效益评估 6
结论 7
参考文献 8
致谢 9
