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OFDM blind carrier offset estimation: ESPRIT
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DOI：10.1109/26.870011.png)
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In orthogonal frequency-division multiplex (OFDM) communications, the loss of orthogonality due to the carrier-frequency offset must be compensated before discrete Fourier transform-based demodulation can be performed. This paper proposes a new carrier offset estimation technique for OFDM communications over a frequency-selective fading channel. We exploit the intrinsic structure information of OFDM signals to derive a carrier offset estimator that offers the accuracy of a super resolution subspace method, ESPRIT.
Keyword:
equalizer
estimation
multicarrier modulation
multipath channels
radio receiver
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期刊
IF:
8.3
论文数:
1.2W
被引数:
3.6W
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