Preamble Based Channel and CFO Estimation for MIMO-OFDM Systems with Null Subcarriers

@article{Manasseh2011PreambleBC,
  title={Preamble Based Channel and CFO Estimation for MIMO-OFDM Systems with Null Subcarriers},
  author={Emmanuel C. Manasseh and Shuichi Ohno and Masayoshi Nakamoto},
  journal={IEICE Transactions},
  year={2011},
  volume={94-A},
  pages={2271-2278}
}
In this paper, challenges regarding the provision of channel state information (CSI) and carrier frequency synchronization for orthogonal frequency division multiplexing (OFDM) systems with null subcarriers are addressed. We propose novel maximum likelihood (ML) based schemes that estimate the aggregate effects of the CFO and channel by using two successive OFDM preambles. In the presented scheme, CFO is estimated by considering the phase rotation between two consecutive received OFDM preambles… CONTINUE READING

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