Hi Bogdan,

I am working on my own implementation of MAP algorithm for non-systematic non-recursive convolutional code. I noticed, you implemented it for itpp. Could you please point me to some references which can be useful in implementation (I am quite familiar with BCJR algorithm, but do not quite understand how soft outputs for coded bits should be generated).

Thank you,

Andy.

PS As far as I understood your code, for each M coded bits corresponding to the state transition you are scanning the trellis to identify the subsets of transitions with each of these coded bits set to 1 and 0. You compute the extrinsic output the same way for this subsets as it was done for the information bits.

Last edit: andy_panov 2013-08-05