We present two phasenoiseestimationalgorithms for single-carrier burst communications. The first and second estimation techniques (denoted as PEA1 and PEA2 respectively) are based on a truncated discrete cosine tra...
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ISBN:
(纸本)9781424493326
We present two phasenoiseestimationalgorithms for single-carrier burst communications. The first and second estimation techniques (denoted as PEA1 and PEA2 respectively) are based on a truncated discrete cosine transform (DCT) basis expansion of the phasenoise and of the corresponding phasor, respectively and do not require any knowledge of the phasenoise statistics. An initial pilot-based estimate is iteratively improved by means of the expectation-maximization algorithm, yielding a soft-decision-directed phasenoise estimate. The performances of PEA1 and PEA2 are compared in terms of the mean-square phase error and bit-error rate. Numerical results show that PEA2 out performs PEA1 for practical values of the signal-to-noise ratio.
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