Improved algorithm of LDPC decoding
Lei Shi · Journal of Jilin University · 2009
A novel Low-Density Parity-Check(LDPC) decoding algorithm was proposed,which integrates the serial belief propagation mechanism with the normalized BP-Based updating rule.The algorithm propagates the belief according to certain order of the check nodes,thus improves the convergence property of the belief propagation.Meanwhile,the algorithm efficiently lowers the decoding complexity by using the normalized BP-Based updating rule,which makes the algorithm to adapt to the implementation of hardware.Simulation was performed under the AWGN channel and results show that,compared with prior LDPC decoding algorithm,the proposed algorithm is able to accelerate the convergence speed of decoding obviously and enhance the decoding performance significantly.