Ultra-Sparse Non-Binary LDPC Codes for Probabilistic Amplitude Shaping

This work shows how non-binary low-density parity-check codes over F 2p can be combined with probabilistic amplitude shaping (PAS) (Böcherer, et al., 2015), which combines forward-error correction with non-uniform signaling for power-efficient communication. Ultra-sparse low-density parity-check co...

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Veröffentlicht in:GLOBECOM : proceedings : 2017 IEEE Global Communications Conference : Singapore, 4-8 December 2017 S. 1 - 5
Hauptverfasser: Steiner, Fabian, Liva, Gianluigi, Boecherer, Georg
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.12.2017
Schlagworte:
Decoding
Encoding
Forward error correction
Niobium
Parity check codes
Probabilistic logic
Signal to noise ratio
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Zusammenfassung:This work shows how non-binary low-density parity-check codes over F 2p can be combined with probabilistic amplitude shaping (PAS) (Böcherer, et al., 2015), which combines forward-error correction with non-uniform signaling for power-efficient communication. Ultra-sparse low-density parity-check codes over F 64 and F 256 gain 0.6 dB in power efficiency over state-of-the-art binary LDPC codes at a spectral efficiency of 1.5 bits per channel use and a blocklength of 576 bits. The simulation results are compared to finite length coding bounds and complemented by density evolution analysis.
DOI:10.1109/GLOCOM.2017.8254155