Coding Theory (Error Detection and Error Correction)
Error Detection and Correction Techniques Error Detection and Correction Techniques Introduction Error detection and correction are essential in digital communications and storage systems to ensure data integrity. Errors can occur due to noise, interference, or hardware malfunctions. Basic Concepts Error Detection: Identifying whether errors have occurred in transmitted data Error Correction: Identifying and correcting errors in transmitted data Redundancy: Adding extra bits to detect or correct errors Forward Error Correction (FEC): Ability to correct errors without retransmission Common Techniques 1. Parity Check The simplest form of error detection that uses a single parity bit. Types: Even Parity: Parity bit makes total number of 1s even Odd Parity: Parity bit makes total number of 1s odd Even Par...