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Non‐binary protograph low‐density parity‐check codes for space communications
Author(s) -
Costantini Laura,
Matuz Balázs,
Liva Gianluigi,
Paolini Enrico,
Chiani Marco
Publication year - 2012
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.1004
Subject(s) - low density parity check code , computer science , turbo code , additive white gaussian noise , binary number , algorithm , block code , forward error correction , decoding methods , telecommunications , theoretical computer science , channel (broadcasting) , mathematics , arithmetic
SUMMARY Protograph‐based non‐binary low‐density parity‐check (LDPC) codes with ultra‐sparse parity‐check matrices are compared with binary LDPC and turbo codes (TCs) from space communication standards. It is shown that larger coding gains are achieved, outperforming the binary competitors by more than 0.3 dB on the additive white Gaussian noise channel (AWGN). In the short block length regime, the designed codes gain more than 1 dB with respect to the binary protograph LDPC codes recently proposed for the next generation up‐link standard of the Consultative Committee for Space Data Systems. Copyright © 2012 John Wiley & Sons, Ltd.