retransmission

Retransmission is the process of sending data again when the original message wasn't received correctly or at all. In digital communication, devices send information in packets. If the receiver detects errors or doesn't get the packet within a certain time, it requests the sender to resend the data. This ensures that the intended message arrives accurately and completely. Retransmission is essential for maintaining reliable communication, especially over noisy or unstable networks. It helps devices correct mistakes without losing important information, ensuring smooth and trustworthy data exchange.