LDPC ENCODING USING fecldpcenc

, Now I have one parity check matrix H of one LDPC (low density parity check) code, and I want to use the command l = fec.ldpcenc(H) to obtain the corresponding generator matrix. However, when I run the program, the command window shows the error message "the last (N-K) columns of the parity-check matrix must be invertible in GF(2)." Can you tell me how to transform my parity check matrix into a proper one in a quickly way?

Thank you!

[Khushboo Singh]

use this may be this can help u..

H = dvbs2ldpc(2/3);
l = fec.ldpcenc(H);
codeword = encode(l,I);

Answer 1

[Mohammed Megrous]

Answer 2

[Mohammed Megrous]

Answer 3

[Mohammed Megrous]