Design of Turbo Codes over GF(q) with q-ary Orthogonal Modulation

A very simple design rule for parallel concatenated Turbo codes over GF(q) with q-ary orthogonal modulation is proposed. Unlike previously proposed exhaustive search methods, the proposed design rule allows straightforward and systematic code designs for any value of q >= 2 and any constraint length greater than 2.X1135sciescopu