Re: [Discuss-gnuradio] LDPC in GNURadio

[CEL]

Hi Johannes,
you don't happen to have first-hand experience with that library?

Best regards,
Marcus
On Thu, 2018-09-20 at 07:50 +0000, Johannes Demel wrote:
> Hi all,
> 
> would it be an option to add a specialized library to GR for LDPC
> code? 'aff3ct' [0] would be one library that comes to my mind. Of
> course, they might have a different approach to decoders in general.
> Also, at this point this might be a "compile your own dependency"
> library. Anyways, it might be worth to have a look at it.
> 
> Cheers
> Johannes
> 
> [0] https://github.com/aff3ct/aff3ct
> 
> ________________________________________
> Von: Discuss-gnuradio <
> address@hidden> im Auftrag
> von Philip Balister <address@hidden>
> Gesendet: Donnerstag, 20. September 2018 03:43:20
> An: Andrej Rode; Sylvain Munaut
> Cc: GNURadio Discussion List
> Betreff: Re: [Discuss-gnuradio] LDPC in GNURadio
> 
> On 09/19/2018 05:03 PM, Andrej Rode wrote:
> > Hi Sylvain,
> > 
> > thanks for you thorough look into the state of the LDPC
> > encoder/decoder.
> > I just skip the long text of wall and answer your questions from my
> > point of view:
> > 
> > > So my questions would be :
> > > 
> > > (1) Is cleaning up the mess worth it ?
> > 
> > I personally would like to see the FEC module cleaned up a bit.
> > There is also a
> > viterbi decoder in gr-trellis which would be perfectly fine in gr-
> > fec
> > and using the gr-fec API. Maybe even porting in the specialized
> > LDPC for
> > gr-dtv would be possible for the parameters used in gr-dtv. (which
> > does
> > not mean you have to do so)
> > 
> > > (2) Is completely breaking the API of those blocks acceptable ?
> > 
> > For post-3.8 releases breaking the API for these blocks (and
> > integrating
> > them into the FEC API if they're not already there would be a big
> > plus)
> > 
> > > (3) Is adding a dependency to M4RI library to gnuradio acceptable
> > > ?
> > > (possibly optional one, disabling LDPC if not present).
> > 
> > Looking at M4RI is available in Ubuntu, Fedora and is probably easy
> > to
> > add to other Linux distributions/Windows etc etc.
> > It is "only" a math library and has no dependencies beside libc.
> 
> I didn't find an OpenEmbedded recipe for M4RI, but a quick look at
> the
> source suggest it will be easy enough to create a recipe. Give me
> some
> warning if you go this path and I'll work on the recipe.
> 
> Philip
> 
> > 
> > Cheers
> > Andrej
> > 
> > 
> > 
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> > 
> 
> 
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