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arXiv · 1802.05973

Information Rates and Error Exponents for Probabilistic Amplitude Shaping

Rana Ali Amjad
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Abstract

Probabilistic Amplitude Shaping (PAS) is a coded-modulation scheme in which the encoder is a concatenation of a distribution matcher with a systematic Forward Error Correction (FEC) code. For reduced computational complexity the decoder can be chosen as a concatenation of a mismatched FEC decoder and dematcher. This work studies the theoretic limits of PAS. The classical joint source-channel coding (JSCC) setup is modified to include systematic FEC and the mismatched FEC decoder. At each step error exponents and achievable rates for the corresponding setup are derived.

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Rana Ali Amjad. 2018-02-16. Information Rates and Error Exponents for Probabilistic Amplitude Shaping. https://arxiv.org/abs/1802.05973

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