Concatenated Precoded OFDM for CFO Effect Mitigation

  title={Concatenated Precoded OFDM for CFO Effect Mitigation},
  author={Chi-Hsiang Tseng and Char-Dir Chung},
  journal={IEEE Transactions on Vehicular Technology},
Orthogonal frequency-division multiplexing (OFDM) is highly sensitive to carrier frequency offset (CFO), which not only causes intercarrier interference (ICI) among subcarriers but introduces complex multiplicative distortion (CMD) to all detected subcarrier symbols as well. Due to unknown CFO, both ICI and CMD are time variant, thus complicating the data demodulation at the receiver. In conjunction with a training-prefixed data frame structure, a concatenated precoder that is constructed by… CONTINUE READING
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