Theoretical Characterization of Nonlinear Clipping Effects in IM/DD Optical OFDM Systems

@article{Chen2012TheoreticalCO,
  title={Theoretical Characterization of Nonlinear Clipping Effects in IM/DD Optical OFDM Systems},
  author={Liang Chen and Brian S. Krongold and Jamie S. Evans},
  journal={IEEE Transactions on Communications},
  year={2012},
  volume={60},
  pages={2304-2312}
}
This paper looks at the problem of theoretically characterizing the nonlinear biasing and clipping (BAC) effects on an optical Orthogonal Frequency-Division Multiplexing (OFDM) signal in intensity-modulated, direct-detected (IM/DD) optical systems. Due to the unipolarity of the IM/DD optical channel, a large DC bias and associated nonlinear clipping distortion (NLCD) is inevitable, resulting in a significant performance penalty. This NLCD can be well modelled as a linear deterministic… CONTINUE READING
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