基于HAPS的多个空间-空中-地面网络与FSO通信:性能分析.
Applied optics
|April 3, 2024
概括
本研究介绍了基于多个高空平台站 (HAPS) 的太空-空-地面网络,使用自由空间光学 (FSO) 来克服6G流量需求. 与现有的FSO网络相比,拟议的系统表现出卓越的性能.
科学领域:
- 无线通信无线通信
- 光学网络的光学网络
- 电信工程 电信工程 电信工程
背景情况:
- 当前的无线技术面临的局限性与不断升级的数据流量和新的应用.
- 第六代 (6G) 无线系统需要显著更高的吞吐量.
- 使用自由空间光学 (FSO) 的太空-空-地面 (SAG) 网络对6G有希望,但容易受到大气损害.
研究的目的:
- 提出和分析基于多个高空平台站 (HAPS) 的SAG网络,以加强6G无线通信.
- 通过使用新的HAPS选择方案,调查FSO链接在大气动荡和指向错误下的性能.
主要方法:
- 用关闭形式的表达式来导出停机概率,平均符号错误率 (SER),ergodic容量和停机容量在马拉加分布上的指点错误.
- 开发关键性能指标的非对称表达式,以简化实际分析.
- 对拟议的基于HAPS的多个FSO系统进行模拟和数值评估.
主要成果:
- 拟议的基于HAPS的多个FSO系统显著优于现有的基于HAPS的单个FSO系统.
- 闭式和非交叉式表达式为各种条件下的系统性能提供了有价值的见解.
- 该HAPS选择方案有效地减轻了大气影响,提高了链路可靠性.
结论:
- 多个基于HAPS的SAG网络与FSO为满足6G吞吐量需求提供了可行的解决方案.
- 开发的分析框架使准确的性能预测和系统优化成为可能.
- 未来的研究应该集中在实际的部署挑战和先进的HAPS协调策略上.
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