An Improved Feed-Forward Carrier Recovery Algorithm for Coherent Receivers With $M$ -QAM Modulation Format

@article{Zhou2010AnIF,
  title={An Improved Feed-Forward Carrier Recovery Algorithm for Coherent Receivers With \$M\$ -QAM Modulation Format},
  author={Xiang Zhou},
  journal={IEEE Photonics Technology Letters},
  year={2010},
  volume={22},
  pages={1051-1053}
}
  • Xiang Zhou
  • Published 2010 in IEEE Photonics Technology Letters
An improved feed-forward carrier phase recovery method is proposed for coherent receivers using M-ary quadrature amplitude modulation-based modulation formats. It is shown that by introducing multiple cascaded feed-forward carrier recovery stages, the required compute power can be significantly reduced compared to the prior art using the single-stage-based blind phase search method. 
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