What data rates are you working at?  I haven't had so much trouble with
Viterbi being a limiting factor up to about 1 Mbps QPSK with concatenated
coding.

Sadly, I have no experience moving this to GPU.

On Tue, Mar 21, 2017 at 5:25 AM Mehmeto <[email protected]> wrote:

> Dera All,
>  In almost all cases the Viterbi decoder block eats a lot of CPU time. The
> best alternative is a GPU solution. I have searched for an open source GPU
> implementation but could not find one. There is a MATLAB implementation but
> that one is far from open source.
> Any Ideas? Is it easy to port gr-fec to a CUDA/ openCL based platform?
> Thanks
>
>
>
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-- 
Very Respectfully,

Dan CaJacob
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