Hi all,
I've spent the last day trying to understand the state of LDPC
encoding / decoding in GNURadio, to see how it could be improved. I
limit myself here to gr-fec and not the application specific ldpc that
can be found in gr-dtv for instance.
Here's what I think is the current state (please,
Neither of these implementations is even remotely fast enough for real-time
applications. There are a few open-source fast LDPC decoders that take
advantage of modern processors. The real stand-out is the one by Bertrand Le
Gal (https://github.com/blegal/Fast_LDPC_decoder_for_x86). I have don
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
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
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
>
> Johannes
>
> [0] https://github.com/aff3ct/aff3ct
>
>
> Von: Discuss-gnuradio <
> discuss-gnuradio-bounces+demel=ant.uni-bremen...@gnu.org> im Auftrag
> von Philip Balister
> Gesendet: Donnerstag, 20. September 2018 03:43:20
> An: Andrej Rode;
nnes Demel; 246...@gmail.com; phi...@balister.org
Cc: discuss-gnuradio@gnu.org
Betreff: Re: [Discuss-gnuradio] LDPC in GNURadio
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 +, Johannes Demel wrote:
> Hi al
l just a
> couple of thoughts on it.
>
> Cheers
> Johannes
>
>
> Von: Müller, Marcus (CEL)
> Gesendet: Donnerstag, 20. September 2018 16:17:13
> An: m...@andrejro.de; Johannes Demel; 246...@gmail.com; phi...@balister.org
> Cc:
DVB folks would appreciate it.
Cheers
Johannes
Von: Müller, Marcus (CEL)
Gesendet: Dienstag, 2. Oktober 2018 18:30:35
An: m...@andrejro.de; Johannes Demel; 246...@gmail.com; phi...@balister.org
Cc: discuss-gnuradio@gnu.org
Betreff: Re: AW: [Discuss-gnuradi
Hi,
On Sat, Oct 06, 2018 at 02:31:46PM +, Johannes Demel wrote:
> Hi,
> Earlier someone pointed out that all these implementations for LDPC codes are
> not very fast. We would only have that with precompiled codes. This is one of
> those flexibility vs. speed cases. I would assume that GR
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