LDPC Codes

Low-Density Parity-Check (LDPC) codes are a type of error-correcting code used in digital communications to ensure data is transmitted accurately over noisy channels. They work by adding small amounts of redundancy to the original data, allowing the receiver to detect and correct errors without needing a resend. LDPC codes are called "low-density" because their underlying matrices have mostly zeros, making decoding efficient and effective. They are widely used in applications like satellite communications, Wi-Fi, and storage devices because they improve reliability while maintaining high data speeds.