概括
本研究介绍了一种光学真实时间延迟补偿网络 (OTTDCN),用于对抗6G网络的太赫兹 (THz) 传输中的光束分割. 这种新的方法有效地弥补了取决于频率的相位移,提高了光束方向精度,低功耗.
科学领域:
- 电气工程 电气工程
- 无线通信无线通信
- 光学网络 光学网络
背景情况:
- 第六代 (6G) 通信系统在很大程度上依赖于太赫兹 (THz) 频率,以实现超高带宽.
- 混合光束成型对于缓解THz频段的严重信号衰减至关重要.
- 混合光束成形中的频率平面相移器会导致光束分裂效应,降低性能.
研究的目的:
- 提出一种基于光学真实时间延迟补偿网络 (OTTDCN) 的新阶段预编码结构,以解决THz通信中的光束分割效应.
- 开发一种低复杂度的算法,用于选择混合预编码的最佳光束补偿模式.
- 为了实现低功耗的不同频率的有效相位补偿.
主要方法:
- 开发一个OTTDCN,预先生成多波束补偿模式,用于频率依赖的相位补偿.
- 实施混合预编码算法,为射频 (RF) 链选择最佳光束补偿模式.
- 评估拟议方案在不同频率的光束重定向到目标方向方面的有效性.
主要成果:
- 基于OTTDCN的相位预编码方案有效地减轻了THz通信中的光束分割效应.
- 与现有解决方案相比,拟议的方法证明了低功耗.
- 实现了接近最佳的性能,验证了光束补偿策略的有效性.
结论:
- 基于OTTDCN的相位预编码结构为减轻6G THz通信中的光束分割提供了可行的解决方案.
- 低复杂度的算法可以有效地选择光束补偿模式,以便实际实施.
- 这种方法显著提高了光束转向精度和整体系统性能,同时保持低功耗.
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