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Re: [Discuss-gnuradio] pccc encoder

From: Achilleas Anastasopoulos
Subject: Re: [Discuss-gnuradio] pccc encoder
Date: Wed, 8 Apr 2015 12:18:50 -0400

Since your constellation is complex, then its dimensionality (in the chunks_to_symbos block, as well as in the PCCC decoder block)
should be set to 1 (you are now have it at 2).

The convention is that the chunks_to_symbols array is arranged as

a11, a12, ... a1d, a21 a22,...,a2d,... aM1, aM2, ...aMd

so that it is to be understood as the 2 D array

a11, a12, ... a1d,
a21 a22,...,a2d,
aM1, aM2, ...aMd

with dimensionality d.
Then, at each instance, it outputs the "row" that is indexed by the input symbol.


PS: I also suggest you make a variable "constellation" and put in there your constellation and then input it in both
the chunks_to_symbols AND the PCCC decoder block so that you are sure you are consistent.

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