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Probabilistic Amplitude Shaping
Foundations and Trends® in Communications and Information Theory, 2023Probabilistic amplitude shaping (PAS) proposed in Böcherer, Steiner, Schulte [24] is a practical architecture for combining non-uniform distributions on higher-order constellations with off-the-shelf forward error correction (FEC) codes. PAS consists of a distribution matcher (DM) that imposes a desired distribution on the signal point amplitudes ...
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Amplitude-smoothed BPOF and amplitude-smoothed amplitude-encoded BPOF
SPIE Proceedings, 1990In this paper smoothed binary phaseonly filtcr(ASBPOF) and amplitude smoothed amplitude encoded BPOF(ASAEBPOF) are presented. By computer simulation in the case of symmetrical and unsymmetrical characters it is concluded that with the BPOF and AEBPOF these filters sacrifice light efficiency due to the amplitudesmoothed factor it yield much better ...
Wenjian Chen +3 more
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Amplitude density of a finite amplitude wave
The Journal of the Acoustical Society of America, 1979A theoretical analysis of the effect of nonlinear propagation distortion on the amplitude density of a sample noise signal in a lossless medium is given. It is found that under certain general conditions the amplitude density prior to shock formation is unaffected by the distortion.
Don A. Webster, David T. Blackstock
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