Information Rates and Error Exponents for Probabilistic Amplitude Shaping
Information Theory
2018-06-05 v2 math.IT
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.
Keywords
Cite
@article{arxiv.1802.05973,
title = {Information Rates and Error Exponents for Probabilistic Amplitude Shaping},
author = {Rana Ali Amjad},
journal= {arXiv preprint arXiv:1802.05973},
year = {2018}
}
Comments
Shortened version submitted to Information Theory Workshop (ITW) 2018