Using LDPC-Coded Modulation and Coherent Detection for Ultra Highspeed Optical Transmission

@article{Djordjevic2007UsingLM,
  title={Using LDPC-Coded Modulation and Coherent Detection for Ultra Highspeed Optical Transmission},
  author={I. B. Djordjevic and Milorad Cvijetic and Lei Xu and Ting Wang},
  journal={Journal of Lightwave Technology},
  year={2007},
  volume={25},
  pages={3619-3625}
}
We propose the coded modulation schemes for ultrahigh-speed transmission (100 Gb/s and above) by using commercially available components operating at 40 gigasymbols/s. The bit-interleaved coded modulation in combination with the low-density parity-check codes that are used as component codes has been applied. The modulation is based on either M-ary quadrature-amplitude modulation or M-ary phase-shift keying. bits are mapped into the corresponding signal constellation point using either Gray or… CONTINUE READING
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