Error-Correcting Code
An encoding scheme that adds structured redundancy so a receiver can detect and, within defined limits, correct transmission or storage errors.
Information-Theory Context
An error-correcting code adds structured redundancy so a receiver can detect and, within defined limits, correct corruption without retransmitting the original data. Hamming, Reed-Solomon, LDPC, and polar codes make different code-rate, latency, complexity, and channel-model trade-offs.
Correction Boundary
Forward error correction is not retransmission. How much corruption can be corrected is bounded by the code construction, minimum distance, error or erasure model, and decoder.
Related Information-Theory Concepts
- Hamming Code
- Reed-Solomon
- CRC
- Channel Coding