Channel, Phase Noise, and Frequency Offset in OFDM Systems: Joint Estimation, Data Detection, and Hybrid Cramér-Rao Lower Bound

@article{Salim2014ChannelPN,
  title={Channel, Phase Noise, and Frequency Offset in OFDM Systems: Joint Estimation, Data Detection, and Hybrid Cram{\'e}r-Rao Lower Bound},
  author={O. H. Salim and A. Nasir and H. Mehrpouyan and W. Xiang and S. Durrani and R. Kennedy},
  journal={IEEE Transactions on Communications},
  year={2014},
  volume={62},
  pages={3311-3325}
}
Oscillator phase noise (PHN) and carrier frequency offset (CFO) can adversely impact the performance of orthogonal frequency division multiplexing (OFDM) systems, since they can result in inter carrier interference and rotation of the signal constellation. In this paper, we propose an expectation conditional maximization (ECM) based algorithm for joint estimation of channel, PHN, and CFO in OFDM systems. We present the signal model for the estimation problem and derive the hybrid Cramér-Rao… Expand
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