Improved MS LDPC Decoder Based on Jacobian Logarithm
Ruizhen Wu, Lin Wang, Tao Yuan, Mingming Wang · 2019
An improved MS LDPC decoder is proposed in this paper. The degradation factor of BP to MS is found and optimized based on Jacobian Logarithm and hardware working mode. An offset factor is added to improve the decoding accuracy rate and is optimized to two constants for different SNR environments thus only need an adder and a selector as hardware cost to implement it. The simulation is based on LDPC NR 3GPP 38.212 release and the comparison results showed the proposed improved MS LDPC decoder have a better BER and iteration time performance than other existing decoders in different SNR environments.