Abstract
Based on the research of Binary Low-Density Parity-Check (LDPC) code, this paper studies the Quaternary LDPC code. Based on LU decomposition and BP algorithm, a block and partition parallel mode is proposed to make the data receiving and code compiling process run at the same time, which not only improves the coding speed, but also greatly reduces the time delay caused by data receiving before coding, and the feasibility of the algorithm is verified by simulation. At the same time, synchronization technology is added to the system to minimize the error caused by parallel transmission and ensure the reliability of data reception. The simulation results show that the new algorithm can effectively reduce the time delay and the bit error rate to ensure the effectiveness and reliability of information transmission.
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