earticle

영어

A method for bitwise energy optimization of turbo codes with large size is developed. Unlike earlier methods, which relied on searching for minimum-weight codewords, the proposed method finds the required parameters using two bit error rate (BER) distributions obtained via simulation. Therefore, this method can be used not only for the codes with small codeword length, but also for the codes with large codeword length. Simulation results show BER improvements for turbo codes. Though the method is applied to turbo codes in this letter for concreteness, it can also be used for other kinds of error control codes because it does not rely on the code’s structure.