Channel Estimation Based on a Time-Domain Threshold for OFDM Systems

@article{Lee2009ChannelEB,
  title={Channel Estimation Based on a Time-Domain Threshold for OFDM Systems},
  author={You-Seok Lee and Hyun-Chool Shin and Hyoung-Nam Kim},
  journal={IEEE Transactions on Broadcasting},
  year={2009},
  volume={55},
  pages={656-662}
}
Channel estimation for OFDM systems is usually carried out in frequency domain by the least-squares (LS) method using known pilot symbols. The LS estimator has a merit of low complexity but may suffer from noise because it does not consider any noise effect in obtaining its solution. To enhance the noise immunity of the LS estimator, we consider the estimation noise in time domain named discrete Fourier transform (DFT)-based channel estimation. Residual noise existing at the estimated channel… CONTINUE READING
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