ARQ, which stands for Automatic Repeat Request, is a term widely used in telecommunications and data transmission. The concept of ARQ is essential to ensure that data is transmitted accurately and efficiently, making it an integral part of modern communication protocols. Synonyms for ARQ include Forward Error Correction (FEC), Error Correction Coding (ECC), and Retransmission Protocols. These synonyms are used interchangeably in the context of data transmission, where the ultimate goal is to guarantee the integrity, accuracy, and completeness of data. Regardless of the name, their underlying function remains the same: to enable reliable data transfer, even in noisy or unreliable transmission channels.