Forward Error Correction (FEC)

Forward Error Correction (FEC) is a technique used in digital communication where additional redundant data is sent along with the original information. This extra data allows the receiver to detect and correct errors that may occur during transmission without needing a retransmission. Think of it like sending a puzzle with some extra pieces: if pieces go missing or get damaged, the receiver can still reconstruct the original picture. FEC is commonly used in situations with unreliable or noisy channels, such as satellite or streaming data, to improve reliability and reduce delays.