双跳混合RF-FSO系统与NOMA相结合的性能分析
Tran Cong Hung1, Tan N Nguyen2,3, N H K Nhan3
1Dean of School of Computer Science & Engineering, The SaiGon Internaltional University, Ho Chi Minh City, Vietnam.
PloS one
|December 20, 2024
概括
本研究探讨了具有非直角多重接入的混合射频/自由空间光学 (RF/FSO) 系统. 解码和转发 (DF) 继电器中增强的连续干扰取消 (SIC) 提高了系统性能,并降低了中断概率 (OP).
科学领域:
- 无线通信无线通信
- 光学通信是指光学通信.
- 信息理论 信息理论
背景情况:
- 混合射频/自由空间光学 (RF/FSO) 系统提供了增强的带宽和可靠性.
- 非对角多重接入 (NOMA) 允许在无线网络中高效地利用频谱.
- 继电技术对于扩大通信范围和克服链路阻塞至关重要.
研究的目的:
- 分析与NOMA集成的混合射频/FSO系统的性能.
- 研究解码和转发 (DF) 继电与连续干扰取消 (SIC) 对系统可靠性的影响.
- 在Gamma-Gamma和Nakagami-m色分布下评估中断概率 (OP).
主要方法:
- 混合RF/FSO通信链路与使用SIC的DF继电器的系统建模.
- 基于频道分布的中断概率 (OP) 的数学分析 (Gamma-Gamma用于FSO,Nakagami-m用于RF).
- 使用蒙特卡洛模拟验证分析框架.
主要成果:
- 连续干扰取消 (SIC) 能力和改进的中断概率 (OP) 性能之间存在直接相关性.
- 系统性能受到自由空间光学 (FSO) 通道参数的显著影响.
- 拟议的系统通过集成RF/FSO链接和NOMA显示了增强的可靠性.
结论:
- 在DF继电器中集成SIC是提高混合射频/FSO-NOMA系统性能的一个关键因素.
- 优化FSO通道参数对于最大化系统效率至关重要.
- 该研究为设计强大的混合无线光通信系统提供了经过验证的框架.
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