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LDPC Codes/Evidence
Method evidence record

LDPC Codes

LDPC codes, invented by Robert Gallager in 1962 and rediscovered in the 1990s by MacKay, are linear error-correcting codes defined by sparse parity-check matrices. They achieve performance within 0.4 dB of the Shannon limit with iterative belief-propagation decoding and have become the standard for modern wireless (WiFi-6, 5G NR, Digital Video Broadcasting). Unlike turbo codes, LDPC codes have a more elegant graph-theoretic structure and more mature theoretical analysis.

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Source record

Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.

Low-Density Parity-Check Codes
Taxonomic method record · process-pipeline / telecommunications
  • 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
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Curated claims

Claims persisted in the evidence ledger, each with its own assessment.

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This view does not invent a claim assessment when the ledger has none.

Related methods

Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.

Same method familyMIMOmachine-suggested · Relational suggestion, not evidence.Same method familyOFDMmachine-suggested · Relational suggestion, not evidence.Taxonomic bucketPolar Codesmachine-suggested · Relational suggestion, not evidence.Same method familyShannon Capacitymachine-suggested · Relational suggestion, not evidence.Taxonomic bucketTurbo Codemachine-suggested · Relational suggestion, not evidence.

Evidence status

Sources recorded, not reviewed

Bibliographic sources are present. Claim-level evidence review has not been performed.

Sources

2 recorded citations, copied from the method source record.

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