forward error correction

noun

UK /ˈfɔːwəd ˈerə kəˈrekʃn/

US /ˈfɔːrwərd ˈerər kəˈrekʃn/

A way to fix mistakes in a message without asking for it to be sent again.

The satellite uses forward error correction so the TV picture stays clear even in bad weather.

SYNONYMS

FEC error correction coding channel coding error-correcting code

RELATED WORDS

redundancy checksum parity bit data transmission decoder

OTHER MEANINGS

2. A technique in which extra data is added before sending so the receiver can detect and repair errors on its own.

Engineers added forward error correction to the radio link to reduce dropped packets.

3. The process of encoding a signal with enough redundancy that decoding can recover the original message despite noise.

Forward error correction lets the modem recover data even when the line is noisy.

4. A method used in storage and communication systems to correct bit errors without retransmission.

The SSD controller relies on forward error correction to keep stored data reliable.