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Structure, property, and design of nonbinary regular cycle codes
2010
IEEE Transactions on Communications
In this paper, we study nonbinary regular LDPC cycle codes whose parity check matrix H has fixed column weight j = 2 and fixed row weight d. Through graph analysis, we show that the parity check matrix H of a regular cycle code can be put into an equivalent structure in the form of concatenation of row-permuted block-diagonal matrices if d is even, or, if d is odd and the code's associated graph contains at least one spanning subgraph that consists of disjoint edges. This equivalent structure
doi:10.1109/tcomm.2010.04.080558
fatcat:gbkm5tzoljc6fg3u3m55yciq5q