[dtn-interest] Re : Re: Question

[Vincent Roca <[e-mail]>]

Hello,

If you're interested in AL-FEC codes for the erasure channel,
you should have a look at:
      http://openfec.org

Many, many AL-FEC codes exist. Some of them have the property
of being able to produce a huge number of repair symbols
(Raptor/RaptorQ being good examples of such codes),
others requiring to define in advance the maximum number 
of repair symbols you need (LDPC-Staircase and Reed-Solomon
codes being good examples).

Of course there are IPR aspects that I won't discuss here.
In openfec, we tried to keep away from known IPRs, and you'll
find in this web site not only C-language codecs for Reed-Solomon,
2D parity check and LDPC-Staircase codes, as well as 
simulation environments to assess their performance.

All of them have been specified as FEC schemes in various
RFCs in the context of RMT and FECFRAME working groups.

Hope it answers some of your questions.

Cheers,

    Vincent