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A novel product coding and recurrent alternate decoding scheme for image transmission over noisy channels

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2 Author(s)
Lei Cao ; Dept. of Electr. Eng., Mississippi Univ., MS, USA ; Chang Wen Chen

In this letter, we present a novel product channel coding and decoding scheme for image transmission over noisy channels. Two convolutional codes with at least one recursive systematic convolutional code are employed to construct the product code. Received data are decoded alternately in two directions. A constrained Viterbi algorithm is proposed to exploit the detection results of cyclic redundancy check codes so that both reduction in error patterns and fast decoding speed are achieved. Experiments with image data coded by the algorithm of set partitioning in hierarchical trees exhibit results better than those currently reported in the literature.

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Communications, IEEE Transactions on  (Volume:51 ,  Issue: 9 )