A simple and efficient frequency offset estimation algorithm for high-speed coherent optical OFDM systems.

@article{Zhou2012ASA,
  title={A simple and efficient frequency offset estimation algorithm for high-speed coherent optical OFDM systems.},
  author={Xian Zhou and Keping Long and R. W. Li and Xiaolong Yang and Zhongshan Zhang},
  journal={Optics express},
  year={2012},
  volume={20 7},
  pages={7350-61}
}
In this paper, we propose a simple frequency offset estimation (FOE) algorithm for high-speed coherent optical orthogonal frequency-division multiplexing (CO-OFDM) systems, which avoids the exhaustive search computations on the integer part of FOE by using a merit function. In time domain, the FOE algorithm can estimate all the frequency offset in the range of [-5GHz, +5GHz], for satisfying the practical application requirement, based on only one redesigned training symbol. In addition, we… CONTINUE READING