On Tue, Jun 16, 2015 at 1:03 PM, bob wole <bnw...@gmail.com> wrote: > > >> On 16.06.2015 08:26, bob wole wrote: >> > Hi, >> > >> > I just stared working on FEC in gnuradio. I found that there is >> > gr-fec. I want to know that which literature , books/papers, was >> > followed during the implementation of the gr-fec so that I can go >> > through the c++ implementation more productively and add >> > something. >> > >> > >> > -- Bob >> > >> - >> >> > Hi, >> > >> > I just stared working on FEC in gnuradio. I found that there is >> gr-fec. I >> > want to know that which literature , books/papers, was followed during >> the >> > implementation of the gr-fec so that I can go through the c++ >> > implementation more productively and add something. >> > >> > >> > -- >> > Bob >> > >> >> Hi Bob, >> >> Have a look at the manual. The API itself is quite well described I think: >> >> http://gnuradio.org/doc/doxygen/page_fec.html >> >> It doesn't cover the very recently added TPC and LDPC implementations. >> http://gnuradio.org/doc/doxygen/classgr_1_1fec_1_1ldpc__decoder.html >> http://gnuradio.org/doc/doxygen/classgr_1_1fec_1_1ldpc__decoder.html >> http://gnuradio.org/doc/doxygen/classgr_1_1fec_1_1tpc__encoder.html >> http://gnuradio.org/doc/doxygen/classgr_1_1fec_1_1tpc__decoder.html >> >> Those could use work on their documentation. >> >> We're also about to merge in another approach to LDPC encoding and >> decoding >> based on Tracie Perez's GSoC work. You can see the wip branch here: >> >> https://github.com/trondeau/gnuradio/tree/fec/ldpc_methods >> >> And the GSoC presentations: >> http://www.trondeau.com/grcon2013-presentations#gsoc-perez >> http://www.trondeau.com/grcon2013-presentations#gsoc-manu >> >> Johannes Demel is working on polar codes this summer. >> >> What's your particular interest in FEC? Are you looking to use it or >> implement other codes not already in gr-fec? For the FEC API itself, there >> is no other reference than the manual page and a presentation from the >> original author at our GRCons: >> >> http://www.trondeau.com/grcon14-presentations#tut-mccarthy >> http://www.trondeau.com/grcon2013-presentations#tut-mccarthy >> >> Tom >> > > Hi Tom, > > Thanks for the links. I am targeting Turbo Codes mainly for short frame > size. I found one presentation on turbo codes > > > http://gnuradio.squarespace.com/storage/grcon14/presentations/Sep18_02_Karra_TurboCodes.pdf > > but I could not find its source code in gnuradio. Are Turbo codes > implemented in gnuradio? if yes, in which version can I find it? One more > question, I am targeting short frame length burst, currently which FEC in > gnuradio can give me best gain in this case? > > -- > Bob >
Bob, Yes, Kiran's TPC work has been integrated as of 3.7.7.1. (I even pointed out the links to the manual pages for the tpc_encoder and tpc_decoder above.) Tom
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