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.
KIM S, SOBELMAN G E, LEE H. A reduced-complexity architecture for LDPC layered decoding schemes ［J］. IEEE Transactions on Very Large Scale Integration Systems, 2011, 19(6): 1099-1103.
KOU Y, LIN S, FOSSORIER M P C. Low-density parity-cheek codes based on finite geometries: A rediscovery and new results ［J］. IEEE Transactions on Information Theory, 2001, 47(7): 2711-2736.
2012, Vol. 32 
