simplex communication

Simplex communications, most commonly meaning all communications in one direction only.

'Simplex communication' is a name for a type of communication circuit.

Simplex communication refers to communication that occurs in one direction only.

This is available as a feature on several of the walkie-talkie phones, for "off network" simplex communications.

Systems that do not need the duplex capability use instead simplex communication in which one device transmits and the others just "listen."

Marine VHF mostly uses "simplex communication" transmission, where communication can only take place in one direction at a time.

In communications theory, it is referred to as simplex communication or using ITU standards it refers to half-duplex signaling behavior.

Since the receiver does not have to ask the sender for retransmission of the data, a back-channel is not required in forward error correction, and it is therefore suitable for simplex communication such as broadcasting.