Probabilistic Shaping for Asymmetric Channels and Low-Density Parity-Check Codes

Thomas Wiegart,Linfang Wang,Diego Lentner,Richard D. Wesel

CoRR（2023）

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摘要

An algorithm is proposed to encode low-density parity-check (LDPC) codes into codewords with a non-uniform distribution. This enables power-efficient signalling for asymmetric channels. We show gains of 0.9 dB for additive white Gaussian noise (AWGN) channels with on-off keying modulation using 5G LDPC codes.

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关键词

asymmetric channels,low-density,parity-check

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