Power efficient optical OFDM
Power efficient optical OFDM
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DOI：
10.1049/el:20063636
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发表时间：
2006-03-16
影响因子：
1.1
通讯作者：
Lowery, AJ
中科院分区：
文献类型：
--
作者：
Armstrong, J;Lowery, AJ
提出了一种将正交频分复用（OFDM）技术应用于光通信系统的新技术。通过将负值设置为零，从双极OFDM波形导出限幅OFDM。它的光效率比直流偏置OFDM高8dB。如果仅对奇数OFDM子载波进行调制，则限幅噪声与所需信号正交。
A new technique for using orthogonal frequency division multiplexing (OFDM) in optical systems is presented. Clipped OFDM is derived front a bipolar OFDM waveform by setting the negative values to zero. It has an optical efficiency 8 dB better than DC biased OFDM. If only the odd OFDM subcarriers are modulated, the clipping noise is orthogonal to the wanted signal.