Fig. 1From: Application research of polar coded OFDM underwater acoustic communicationsa Illustration of Arikan’s \({\mathcal{O}}(N\log N)\) complexity encoder implementation with \((N,K,{\mathcal{A}}^{c} ) = (8,4,\{ 0,1,2,4\} )\) (b) SC decoder factor graph and notationBack to article page