节能无人机通信:一个NOMA方案与资源分配和轨道优化.
Huilong Jin1,2, Yucong Zhou1, Xiaozi Jin1
1Hebei Normal University, Shijiazhuang, China.
PloS one
|April 16, 2024
概括
这项研究提高了无线网络的能源效率 (EE),使用无人机 (UAV) 非对角多重访问 (NOMA). 拟议的方法优化了无人机轨迹和功率,显著优于传统方案.
科学领域:
- 无线通信无线通信
- 优化理论 优化理论
- 空中网络 空中网络
背景情况:
- 无人驾驶飞行器 (UAV) 可以灵活地作为空中基站 (ABS) 部署.
- 与直角多重接入 (OMA) 相比,非直角多重接入 (NOMA) 提高了光谱效率.
- 能源效率 (EE) 是可持续无线网络的关键设计参数.
研究的目的:
- 利用无人机辅助的无线通信系统开发一个节能的下联NOMA方案.
- 通过共同优化资源配置和无人机轨迹,最大限度地提高整体能源效率.
- 为应对无人机移动性和通信限制所带来的挑战.
主要方法:
- 在考虑无人机速度和机动性限制的情况下,开发了一个无人机能源效率 (EE) 模型.
- 制定了一个EE最大化问题,共同优化地面用户的传输功率和无人机轨迹.
- 使用三个用户集群算法,将非凸的优化问题转换为凸的形式.
- 为了快速融合,采用了一种代交替优化方法.
主要成果:
- 拟议的UAV-NOMA计划显示了能源效率的显著改善.
- 开发的算法比传统的OMA方案取得了近99.6%的优势.
- 资源分配和无人机轨迹的联合优化有效地增强了EE系统.
结论:
- 无人机辅助的NOMA计划是提高无线网络能效的有希望的方法.
- 拟议的优化框架有效地平衡了资源分配和轨迹规划,以加强EE.
- 这项研究为节能空中无线通信领域做出了宝贵的贡献.
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