Low-Density Parity-Check (LDPC)

Low-Density Parity-Check (LDPC) codes are a method used in digital communication to detect and correct errors in transmitted data. They work by adding a structured set of redundant bits to the original message, enabling the receiver to identify and fix mistakes caused by noise or interference. The "low-density" aspect refers to the sparse arrangement of these redundant bits, which allows for efficient error correction with less extra data and faster processing. LDPC codes are widely used in modern systems like satellite communication, Wi-Fi, and 5G to improve reliability and data integrity.