概括
过器银行多载波器 (FBMC) 提供了优越的性能,而不是光学网络的直角频率分割复杂化 (OFDM). 一个新的低复杂度的FBMC发射器显著提高了数据速率,并减少了强度调制和直接检测系统的延迟.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
背景情况:
- 正角频率分割复杂化 (OFDM) 在短距离光学网络中被广泛使用.
- 传统的过器银行多载体 (FBMC) 在高速光学系统中面临实施复杂性的挑战.
研究的目的:
- 为强度调制和直接检测 (IMDD) 系统提供低复杂度,实时的FBMC发射器.
- 与OFDM相比,提高光谱效率并降低实施复杂性.
主要方法:
- 开发了一种新的FBMC发射器,使用单个完全并行的剪切反向快速富里埃转换 (FFT) 和简化的多相网络.
- 使用现场可编程网关阵列 (FPGA) 和高速数字对模拟转换器 (DAC) 实现了实时FBMC/OFDM信号.
- 在20公里的标准单模光纤IMDD系统中实验验验证了该方案.
主要成果:
- 与OFDM相比,拟议的FBMC发射器节省了21%的实乘数,减少了16.2%的延迟,并增加了12.5%的数据速率.
- 在20公里传输后,在3.8e-3的位误差率下实现了微不足道的功率罚款.
- 与OFDM发射器相比,类似的查找表和记录使用情况.
结论:
- 拟议的低复杂度FBMC发射器是OFDM对高速IMDD光通信系统的可行和高效的替代方案.
- FBMC表现出卓越的性能和降低的复杂性,使其适合未来的短距离光网络应用.
相关概念视频
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