A high spectral efficiency optical OFDM scheme based on interleaved multiplexing.

@article{Lei2010AHS,
  title={A high spectral efficiency optical OFDM scheme based on interleaved multiplexing.},
  author={Cheng Lei and Hongwei Chen and Minghua Chen and Shizhong Xie},
  journal={Optics express},
  year={2010},
  volume={18 25},
  pages={
          26149-54
        }
}
By multiplexing two OFDM signals with the same channel space and bit rate together in an interleaved mode, a novel optical multiplexing scheme is proposed and experimentally demonstrated. Since the channel space is halved, the spectral efficiency is doubled compared with conventional OFDM. It is proved that the orthogonality between the subcarriers is maintained as long as the data is real. With discrete Fourier transform, the proposed scheme has similar computational complexity as conventional… CONTINUE READING
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