Fig. 5From: Computing tight upper bounds for Bhattacharyya parameters of binary polar code kernels with arbitrary dimensionTanner graph of the multi-kernel polar with transformation matrix \(G_{24}\): \(G_{24}=B_{24} \cdot G_2^{\otimes 2} \otimes G_3 \otimes G_2\), and the mixed-nary representations of the channel indexes are listed on the leftBack to article page