Process / pipelineCoding theory
低密度奇偶校验码 (LDPC)
LDPC码由Robert Gallager于1962年发明,并在20世纪90年代由MacKay重新发现,它是由稀疏奇偶校验矩阵定义的线性纠错码。通过迭代信念传播译码,其性能可接近香农极限0.4 dB,并已成为现代无线通信(WiFi-6、5G NR、数字视频广播)的标准。与Turbo码不同,LDPC码具有更优雅的图论结构和更成熟的理论分析。
阅读完整方法
仅限会员
登录使用免费账户登录即可阅读本节。
Method map
The neighbourhood of related methods — select a node to explore.
来源
- Gallager, R. G. (1962). Low-density parity-check codes. IRE Transactions on Information Theory, 8(1), 21-28. DOI: 10.1109/TIT.1962.1057683 ↗
- Richardson, T. J., & Urbanke, R. L. (2001). The capacity of low-density parity-check codes under message-passing decoding. IEEE Transactions on Information Theory, 47(2), 599-618. DOI: 10.1109/18.910577 ↗
如何引用本页
ScholarGate. (2026, June 3). Low-Density Parity-Check Codes. ScholarGate. https://scholargate.app/zh/telecommunications/ldpc-codes
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- 多输入多输出 (MIMO)电信↔ compare
- 正交频分复用 (OFDM)电信↔ compare
- 极化码(Polar Codes)及其串行消除译码电信↔ compare
- 香农信道容量定理电信↔ compare
- Turbo码(Turbo Coding)与迭代译码电信↔ compare