57 天前 - … a sparse paritycheck matrix, and both a block-permutation construction … -permutation
construction of the form (1), where each block Cij is a power of the cyclic permutation matrix…

71 天前 - … parity check matrix Hm xn, as well as the systemic important code rate R = k / n. The
code generator matrix … an all-zero matrix, IM an identity matrix and Πi a specific permutation …

99 天前 - … constructed column-weight 3 LDPC code with the paritycheck matrix 𝜚(G) and we
call … 1 ≤ j ≤ m, from top to bottom in order of placement, by permutation matrices , s2 j−1 …

125 天前 - … In a remarkable display of its effectiveness, the method successfully discovered a
codeword of weight 212 in the parity-check matrix of a block binary code with a rate of 0.5 and …

126 天前 - … parity check matrix being sparse yields another kind of impressively performing weakly
random-like codes called low density parity check (… After illustrating permutation matrices …

133 天前 - … that a given column permutation S leads to the unique information set, and that
every information set can be obtained by a suitably chosen column permutation. However, there …

172 天前 - … permutations to the base matrix Hb, where permutations … to obtain the overall
paritycheck matrix H. More specifically… with one permutation π, and the parity-check matrix H that …

228 天前 - … parity-check matrices are judiciously designed, we obtain three families of binary
MDS array codes with optimal repair bandwidth; using the permutation matrices … paritycheck …

236 天前 - … We present a wellconsidered modification of hybrid redundancy that may be
used to any lightweight block cipher that uses substitution permutation networks (SPNs) [12]. …

242 天前 - … The generator matrix of the code is hidden using a nonsingular replacement
matrix and a permutation matrix. The combination of three matrices forms a public Ney. …