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In this paper, we present a simple method for normalizing the output information produced by a turbo decoder. The method is devised based on the cross-entropy (CE) concept. Simulations comparing the new method with some widely used normalization techniques show that the proposed approach can achieve about 0.2∼0.3dB coding gain improvement on average while reducing up to about 1/2∼2/3 iteration for...
After passing a systematic bit through a turbo encoder, the encoding process will introduce some extent of correlation between a systematic bit and its associated parity bits. However, this correlation is neglected in the subsequent turbo decoding process so as to reduce its computational complexity. In this paper, we try to explore the feasibility of modeling the bit-level stochastic correlation...
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