What is the difference between simplex and full duplex transmission

The mode can be modified to correspond with each specific type of communication program. When set to a half-duplex system, connections alternate use of the communication channel and hardware can determine the time each data link in the system is allotted for transmissions. There are distinct differences between full and half-duplex systems.

With half-duplex mode, each transmitted character is immediately displayed on a monitor. Common examples of half-duplex transmission mode include communication via Walkie-talkie. Text message services on the cellular network are kind of half-duplex communication. Half-duplex modes are still in use publicly but are being replaced by full-duplex modes being more efficient and user-friendly. Full-Duplex mode of transmission is the advanced communication mode that is bidirectional.

Data can be sent and received from both directions at the same time. It comprises of dedicated channels for both sending and receiving. Common examples of full-duplex transmission mode include telephonic call communication.

A modern-day example includes video calling, instant chatrooms, etc. The full-duplex data transmission mode is better in performance from both simplex and half-duplex and is based on the latest technology.

Half duplex is still considered a one-way road, in which a vehicle traveling in the opposite direction of the traffic has to wait till the road is empty before it can pass through.

For example, in walkie-talkies, the speakers at both ends can speak, but they have to speak one by one. They cannot speak simultaneously. In full duplex transmission mode, the communication between sender and receiver can occur simultaneously.

The sender and receiver can both transmit and receive at the same time. Examples of simplex mode are Keyboard, Mouse and monitor, radio broadcasts, Television. There is no mechanism in which the information can be transmitted back from receiver to sender. The entire capacity of the channel is used to send data in one direction.

Therefore it is used when maximum bandwidth is required during the transmission. It is used to conserve bandwidth as only a single communication channel is required, which is shared alternatively between the two directions. It is used when communication in both directions is required all the time without any delays.