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#43 Duo binary turbo codec

open
nobody
itpp (51)
5
2012-09-15
2006-07-14
geniusbb
No

Hi,

Do you think we will have duo binary turbo codec in the
future ? It is used in IEEE 802.16e-2005 and I think it
will be widely used too. cheers

BR,
Arthur.

Discussion

  • Logged In: YES
    user_id=1004597

    Hi Arthur,

    You are welcome to start writing the duo-binary turbo code
    class ;) We also agree, that it would b widely used by the
    IT++ community.
    Please, let us know, if you have something to add to the
    library.

    BR,
    /ediap

     
  • geniusbb
    geniusbb
    2006-07-17

    Logged In: YES
    user_id=1226980

    Hi,

    I am happy to do that, but my background wasn't in channel
    coding. If you can give me some reference, I can do some
    reading and write some codes when I have time. Will be a
    huge difference from the existing IT++ turbo codec ? Do they
    use the same RSC & MAP decoder ?

    Regards,
    Arthur.

     
  • Logged In: YES
    user_id=1004597

    Dear Arthur,

    Here you can find some reference documentation on DBTC
    (found by Google):
    [1] http://perso.enst-bretagne.fr/~douillar/Publis/ISTC2000.pdf
    [2] http://www.stanford.edu/~erstauff/duobinary.pdf

    As for your further questions, I do not know if some parts
    of the current Turbo_Codes class can be reused. I guess,
    that the RSC might be slightly different, so I would start
    with writing and testing the CRSC used in DBTC...

    I am glad to hear that you are interested in helping with
    the development of the IT++ library :)

    BR,

    /ediap

     
  • SamuraiDexter
    SamuraiDexter
    2007-10-19

    Logged In: YES
    user_id=1916948
    Originator: NO

    I have complete C implementation of the Duobinay turbo codes specified in IEEE 802.16e-2005 standard.
    Let me try to port it on IT++

    Regards,

     
  • Logged In: YES
    user_id=1004597
    Originator: NO

    Hi Arun,

    Thanks for your great offer! Please update this request, when you have something usable.
    I am increasing the priority of this request and wait for your first contribution.
    BTW, you might consider using LLR_Calc_unit class for LLR algebra.

    BR,
    /ediap