Abstract: This paper uses tools from matrix algebra over commutative rings to simplify the design of parity-check (PC) matrices for Quasi-cyclic (QC) low-density parity-check (LDPC) codes. These tools ...

Abstract: In this paper we show the construction procedure for QC-LDPC codes with low encoding complexity and structure optimized for hard decision decoding and low ...

A new technique for efficient encoding of LDPC codes based on the known concept of Approximate Lower Triangulation (ALT) is introduced. The greedy permutation algorithm is presented to transform ...

The "main.m" file in the subfolder https://github.com/Lcrypto/Density-Evolution-AWGN/tree/master/ Reciprocal-channel approximation for approximation of Density ...

PolarCode_and_LDPC/ ├── README.md # 项目说明文档 ├── ARCHITECTURE.md # 架构设计文档 ├── USAGE_GUIDE.md # 使用指南 ├── requirements.txt # Python依赖 ├── config/ # 配置文件 │ ├── polar_config.yaml ...