The construction of the LDPC coded check matrix, output the coded Tanner graph through matlab simulation, and the degree distribution graph of the checksum and variable nodes

Table of contents

1. LDPC code structure and design

2. Matlab simulation implementation

3. Application fields

4 Conclusion

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       In 5G communication systems, in order to achieve high-speed and reliable data transmission, low-density parity-check (LDPC) coding has become an important error-correcting coding technique. LDPC code is a kind of distributed code, and its structure is described by constructing a graph. Among them, the Tanner graph represents the structure of the LDPC code, the connection between nodes represents the coding rules, and the degree distribution graph of the check node and the variable node reflects the connection of the nodes.