16QAM optical fast-OFDM transmission system based on discrete fourier transform and frequency multiplexing
2014 OptoElectronics and Communication Conference…
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Abstract & Figures
We demonstrate a QAM-FOFDM system by transmitting the real and imaginary parts separately in different subbands. Each part is modulated by interleaved DFT, which doubles the spectral efficiency than ordinary OFDM.
Discrete Fourier transform
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