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Complementary reliability-based decodings of binary linear block codes

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2 Author(s)
Fossorier, M.P.C. ; Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA ; Shu Lin

This correspondence presents a hybrid reliability-based decoding algorithm which combines the reprocessing method based on the most reliable basis and a generalized Chase-type algebraic decoder based on the least reliable positions. It is shown that reprocessing with a simple additional algebraic decoding effort achieves significant coding gain. For long codes, the order of reprocessing required to achieve asymptotic optimum error performance is reduced by approximately 1/3. This significantly reduces the computational complexity, especially for long codes. Also, a more efficient criterion for stopping the decoding process is derived based on the knowledge of the algebraic decoding solution

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Information Theory, IEEE Transactions on  (Volume:43 ,  Issue: 5 )