Abstract:To further improve the decoding performance of the Normalized BP-Based algorithm, an improved Normalized BP-Based algorithm was proposed. The correction factor was changed dynamically according the amount of the information from the check nodes to variable nodes in order to achieve non-linear compensation of BP-Based algorithm. The simulation results show that when the bit error rate was less than 0.5×10-2, the improved algorithms could get about 0.1dB gain, compared with Normalized BP-Based algorithm, only with slight increase in complexity, and the number of iterations did not increase.
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