"Bahman " <email@example.com> wrote in message <firstname.lastname@example.org>... > "Fulus " <email@example.com> wrote in message <firstname.lastname@example.org>... > > > Hi dear > > > > > > is your bbframe a row vector? > > > because error indicates that it is a column vector,try it inverted (BBframe') > > > > Hello, > > > > yeah you right, I nverted it and it runs without errors now however, it still isnt function as it suppose to because as I go higher in Eb/No my BER isnt going lower but is actually increasing by a tiny amount. That is the Decoder is still introducing errors. > > Hi dear > you need to be careful about the noise you are introducing to awgn as well as noise variance you need to set in demodulator
I hope that someone could help me, even.
I had the sames problems with BCH and LDPC Enc/Dec to make it run......but at the end I can solved.
Now, my problem is that when I use (without add a AWGN channel and modulation) encoder and decoder of BCH (in raw)......its returns 0 errors between the original msg and received/decoded msg. But its not so when I use LDPC (in raw) because I get to many errors (original msg - decoded msg).
Do you know why? I attach the code that I use: H=dvbs2ldpc(1/4); enc = fec.ldpcenc(H);