OFDM carrier frequency offset correction based on Type-2 control loop

@article{Chen2012OFDMCF,
  title={OFDM carrier frequency offset correction based on Type-2 control loop},
  author={Xiaofei Chen and Zhongren Cao and Fred Harris and Bhaskar D. Rao},
  journal={2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
  year={2012},
  pages={3161-3164}
}
In this paper, we propose a robust data-aided carrier frequency offset (CFO) tracking algorithm for orthogonal frequency division multiplexing (OFDM) system. The problem is solved as a sequence of estimation and correction steps. We find the major contributors to the CFO measurement uncertainty are the additive white noise together with the inter-carrier interference (ICI). Our derivation results show the noise variance can be reduced via averaging while the ICI introduced uncertainty can beā€¦Ā CONTINUE READING