Carrier sense multiple access with collision detection

In computer networking, Carrier Sense Multiple Access With Collision Detection (CSMA/CD) is a network control protocol in which
a carrier sensing scheme is used and
a transmitting data station that detects another signal while transmitting a frame, stops transmitting that frame, and then waits for a random time interval (known as "backoff delay" and determined using the truncated binary exponential backoff algorithm) before trying to send that frame again.
Collision detection is used to improve CSMA performance by terminating transmission as soon as a collision is detected, and reducing the probability of a second collision on retry.