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ldpc译码的文章，比较了几种译码算法的性能，优缺点等-ldpc decoding article comparing several decoding algorithm performance, advantages and disadvantages

关于ldpc码和积算法译码的文章，Analysis_of_sum-product_decoding_of_low-density_parity-check_codes_using_a_Gaussian_approxi-About ldpc codes sum decoding algorithm article