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What is Multiplexing?
Multiplexing is an approach of broadcasting signals from multiple sources over an individual transmission medium for maximum use and storing its value. The electronic device that performs this function is called a multiplexer.
The diagram given below shows a multiplexer that receives three input lines and deflects them to an individual output line.
The three computers joined by these links are combined and then transmitted on the single channel of high bandwidth at the sender's end. A demultiplexer divides the data stream into three sub channels and passes data to three receivers at the receiver's end.
Multiplexing is achieved using a device known as Multiplexer (MUX). It combines n input lines to create a single output line. It pursues many-to-one such n input lines and one output line.
Demultiplexing is managed by using a system known as Demultiplexer (DEMUX). It is possible at the receiving end. DEMUX breaks a signal into its component signals, such as one input and n outputs. Thus, demultiplexing pursues one-to-many techniques.
Uses of Multiplexing
The transmission channel can be sent the signal from sender to receiver. It can have one signal at a time. If there are various signals to send from one channel, then the channel should be split so that every signal is provided with a different fragment of the possible bandwidth.
When various signals send the traditional channel, hence is a prospect of collision. The multiplexing concept is used to avoid such a collision.
Transmission services are costly.
Advantages
The advantages of Multiplexing are as follows −
There is greater than one signal that can be transmitted over a single channel.
It can utilize the bandwidth of a medium effectively.
If no multiplexing is used between the clients at two several distances apart, it would require separate connection lines.
If multiplexing is given then, just one line is needed. This leads to a reduction in the line cost.
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