概括
智能反射表面 (IRS) 辅助的自由空间光学 (FSO) 通信通过改善空间多样性来增强直接的FSO链接. 新的传输方案优化了可靠的FSO系统的链路选择和功率,提高了40%以上的性能.
科学领域:
- 光学通信系统 光学通信系统
- 无线通信技术无线通信技术
- 对于通信的信号处理.
背景情况:
- 自由空间光学 (FSO) 通信提供高带宽,但需要视线.
- 智能反射表面 (IRS) 可以通过提供空间多样性和克服视线限制来增强FSO连接.
- 美国国税局协助的FSO链接是直接FSO链接的有希望的补充.
研究的目的:
- 调查IRS协助的FSO链接在与直接FSO链接共存时的作用和性能.
- 为了解决 IRS 协助的 FSO 系统中链路选择和电源配置的挑战,在链路中断的服务质量 (QoS) 保证下.
- 开发适用于各种FSO通道模型的传输方案.
主要方法:
- 汇总利率传输 (SRT) 和利率公平传输 (RFT) 方案的开发.
- 优化链路选择和功率分配策略.
- 分析各种FSO道模型下的系统性能与QoS约束.
主要成果:
- 拟议的SRT和RFT方案实现了各自目标的最佳性能.
- 开发的传输方案的有效性通过模拟和分析来验证.
- 观察到SRT的系统性能提高了40%,RFT的系统性能提高了41%.
结论:
- 美国国税局协助的FSO通信有效地补充了直接的FSO链接,增强了空间多样性并克服了视线问题.
- 拟议的链路选择和电源配置方案为IRS辅助的FSO系统提供了强大的QoS保证.
- 开发的SRT和RFT方案提供了显著的性能提升,证明了IRS集成到FSO网络的价值.
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