Title :
Two-bit message passing decoders for LDPC codes over the binary symmetric channel
Author :
Sassatelli, Lucile ; Chilappagari, Shashi Kiran ; Vasic, Bane ; Declercq, David
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
fDate :
June 28 2009-July 3 2009
Abstract :
A class of two-bit message passing decoders for decoding column-weight-four LDPC codes over the binary symmetric channel is proposed. The thresholds for various decoders in this class are derived using density evolution. For a specific decoder, the sufficient conditions for correcting all error patterns with up to three errors are derived.
Keywords :
binary codes; channel coding; decoding; parity check codes; LDPC codes; binary symmetric channel; column-weight; density evolution; two-bit message passing decoder; Algorithm design and analysis; Belief propagation; Error analysis; Error correction; Error correction codes; Error probability; Iterative decoding; Message passing; Parity check codes; Sufficient conditions;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5205790
