Also, when polar coding is selected, the coding.decodingIterations field represents the list size of the decoder. This only works if you have selected the decoding algorithm to be ‘List-SC’ or ‘CRC-List-SC’. Otherwise, the ‘SC’ algorithm will just run the list decoder with a list size of 1 by default. In other words, if you want to see the effect of the list size, you need to set coding.decoding to ‘List-SC’ or ‘CRC-List-SC’.
Best,
Bashar