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

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 L...

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Hauptverfasser:	Wiegart, Thomas, Wang, Linfang, Lentner, Diego, Wesel, Richard D
Format:	Artikel
Sprache:	eng
Schlagworte:	Computer Science - Information Theory Mathematics - Information Theory
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Zusammenfassung:	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.
DOI:	10.48550/arxiv.2305.13376