Short ring distribution based weighted message passing decoding method
A technology of message passing and short loop, which is applied to the error detection of signal space coding and the use of low-density parity check codes for error correction/error detection, etc. problem, to achieve the effect of improving the decoding performance
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 The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
 A weighted message passing decoding method based on short ring distribution, such as figure 1 shown, including the following steps:
 Step 1, initialization, including:
 A. Using the standard Gaussian channel BPSK modulation transmission model, the symbol 0 is mapped to 1 for transmission, and the symbol 1 is mapped to -1 for transmission;
 B. Set the maximum number of cycles and set the initial number of cycles to 0;
 C. Calculate channel reception probability.
 Step 2. Calculate the number of rings with a ring length of g participating in each side of the check matrix H, where g is the ring length...
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