please can anyone help?? i need a matlab code for turbo code and the decoding is by using viterbi

i have tried to find it using file exchange but i ddidnt find it pls help

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

Answer 1

[per isakson]

I guess already seen

• Viterbi decoder
• Turbo Code

and I guess you don't have "Communications System Toolbox".

[mary]

i saw those .. the turbo code isn't decoded using viterbi it is decoded by another method..

i know how the viterbi works but i don't know how it works with the turbo code to decode it.

[mary]

and i don't have the toolbox

[mary]

Mr. per isakson when i ran the turbo code you gave me in your answer this error occurs:

Undefined function 'parity_bit' for input arguments of type 'double'.

what should i do to make the code run??

[per isakson]

Use the debugger. Step through the code and try to figure out if there is something special with your input. Start by

    dbstop if error