Tomas, it sounds as it you are referring to a soft decision iteratively decoded system ?
IE like LPDC, Turbo block, turbo product etc etc Iterative, never the less. On 3/11/2017 7:23 PM, Tomas Härdin wrote: > Could such a cognitive system also be useful on the encoding side? > Whenever I see postprocessing ideas like this I tend to think "what if > you put that model in the coding loop?". Like the loop filter in H.264 > for example. > > /Tomas > > On Wed, 2017-11-01 at 13:19 +0100, Matei Alexandru Coltoiu wrote: >> Hello, >> >> I am trying to find a different approach regarding the poor error >> handling issue. >> My Idea is to write a demodulator from scratch. Instead of either >> having an output consisting of approximated values (later to be fed >> into the FEC decoder) or having none, we could write the demodulator >> so that it adds a "tail" after each symbol so that we have >> floating point values in the end. Take this example: The demodulator >> would either aproximate a value between 00 and 01 or we would have an >> error. With my example, it would output a value between 0000000001 >> and 0011111111. We would than use a cognitive decoder to "guess" wich >> value it should use. I am aware that a cognitive decoder is not a >> piece of cake and that we ar fighting with highly compressed data. >> But, given the overhead reduction from the FEC, we should bbe able to >> get a decent gain. The result in low SNR should be a noisy output but >> inteligible, similar to an analog radio (sort of). >> >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> >> >> _______________________________________________ >> Freetel-codec2 mailing list >> Freetel-codec2@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
