Title :
Ensemble analysis of pseudocodewords of protograph-based non-binary LDPC codes
Author :
Divsalar, Dariush ; Dolecek, Lara
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
This paper presents a method for evaluating pseudocodeword weight enumerators of nonbinary LDPC codes built out of protographs. The ensemble enumerators are evaluated for both the finite-length and infinite-length regimes. Results of this type can be particularly useful for designing structured non-binary LDPC codes with good properties under message passing or linear programming decoding.
Keywords :
binary codes; decoding; linear codes; linear programming; parity check codes; ensemble enumerator; finite-length regime; infinite-length regime; linear programming decoding; message passing decoding; protograph-based nonbinary LDPC code; pseudocodeword ensemble analysis; pseudocodeword weight enumerator; Conferences; Iterative decoding; Linear code; Niobium; Vectors;
Conference_Titel :
Information Theory Workshop (ITW), 2011 IEEE
Conference_Location :
Paraty
Print_ISBN :
978-1-4577-0438-3
DOI :
10.1109/ITW.2011.6089475
