fec.ldpcdec error matlab code

hi,

can any body help me in how i can fixe this matlab error

??? Error using ==> fec.ldpcdec.decode at 67
LLR must be a 1-by-BlockLength vector.

Answer 1

[Walter Roberson]

The second argument you pass to the decode() routine must be a row vector whose length is the same as the block length; it is the data to be decoded.

Note: fec.ldpcdec started being replaced as of R2012b. Unless you need to maintain compatibility with R2012a or earlier, it is recommended that you rewrite your code in terms of comm.LDPCDecoder