2. The decoding device according to claim 1 , wherein the i stage decoder connects the one partial symbol to the end of the i−1 partial symbols which are input.
2. The decoding device according to claim 1 , wherein the i stage decoder connects the one partial symbol to the end of the i−1 partial symbols which are input. 3. The decoding device according to claim 2 , wherein the i stage decoder updates selected probabilistic models per unit cycle and on the basis of one partial symbol.