What Are The 3 Major Multiplexing Techniques?

Multiplexing Techiques

Multiplexing is the process/technique of dividing unmarried channel into multiple part tosend/transfer multiple information simultaneously at same time.
Multiplexing techniques is really efficient/effective applied scientific discipline which reduces the terms of the cables. You don’t have got to purchase unique cable for each type of data. For example, if yous desire to ship audio, video as well as documents etc, yous don’t have got to specify a cable for every type of data, rather yous tin multiplexing technique to ship all these iii types of information using a unmarried cable simultaneously.
The next diagram shows the multiplexing technique:

In multiplexing, ii devices are used Mux as well as De Mux

Mux:

Mux stands for Multiplexer. It is responsible to multiplex (combine) multiple links to transfer inwards a unmarried channel equally shown inwards the higher upward diagram. Commonly the multiplexer is specify at the sender side because if the sender wants to ship unlike types of information , it has to last multiplexed kickoff to ship into a unmarried channel.

De Mux:

De mux stands for De Multiplexer. It is responsible to separate the multiplexed links from a unmarried channel into unlike separate links.  Commonly the de-multiplexer is specify at the receiver side because when the receiver have unlike types of information from a unmarried channel , it needs to last separate or de-multiplex.

There are ii types of multiplexing

Analog :

Analog multiplexing is sub categorized into ii types of multiplexing

1. Wavelength Division Multiplexing (WDM).
2. Frequency Division Multiplexing (FDM).

Digital :

Digital multiplexing includes Time Division Multiplexing (TDM).

1. Wavelength Division Multiplexing : ( WDM )

In uncomplicated words the multiplexing on the base of operations of wavelength is the wavelength partitioning Multiplexing. It is an analog technique. WDM multiplex unlike numbers of optical lite wavelength to transfer inwards a unmarried fiber.  Each wavelength brand a virtual fiber to transfer inwards a fiber thus that it depends on the speed (frequency) of the wavelength. The wavelength of high speed volition accomplish kickoff as well as wavelength amongst depression speed volition accomplish later.

WDM is same equally FDM but the divergence is that the Multiplexing as well as De Multiplexing of WDM includes lite wavelengths piece that of FDM includes frequencies.

WDM

The best instance of WDM is the prism , which shows the diverse colors after De Multiplexing the light.

WDM (Prism)

You tin encounter that a unmarried channel of lite is divided into unlike colors using prism. If yous overstep the unlike reveal of colors from the side of the unmarried light, it volition exhibit unmarried lite channel on the contrary side.

Wavelength partitioning multiplexing is sub divided into ii types:

1. Uni-Directional WDM:

In uni-directional WDM , information is ship solely from 1 side as well as wear the other side. Multiplexing of the wavelength occurs on the sender side as well as de-multiplexing of the wavelengths accept house on the receiver side.

The diagram below shows uni-directional WDM inwards which sender multiplex the wavelength as well as receiver de-multiplex it.

Uni-directional WDM

2. Bi-Directional WDM:

As the mention shows the bi-directional hateful both sides, In bi-directional WDM the wavelength tin last ship from both side which way that both sides (sender  & receiver) tin produce multiplexing as well as de-multiplexing.

The diagram below shows Bi-directional WDM inwards which sender as well as receiver both tin multiplex as well as de-multiplex the wavelength

 Bi-directional WDM

2. Frequency Division Multiplexing : ( FDM )

Multiplexing on the base of operations of frequency is called Frequency partitioning multiplexing ( FDM ).  It is an analog technique of Multiplexing unlike frequencies of unlike links to overstep through a unmarried cable.

The link having high frequency volition accomplish kickoff as well as that is the link having depression frequency volition accomplish afterward equally It depends on the frequency.

The diagram below shows the frequencies that are multiplexed inwards a unmarried channel as well as past times reaching its destination, it is thus De multiplex to frontward to the correct destination.

FDM

3. Time Division Multiplexing : ( TDM )

Time partitioning multiplexing is a digital technique of combining unlike links to transfer through a unmarried channel. H5N1 unmarried channel is divided into unlike fourth dimension slots inwards which unlike type of information is sending on the base of operations of time. Every link have got specific fourth dimension for transferring.
For example:  the slot 1 is for downloading, slot 2 is for youtube, slot 3 is for searching as well as slot four is for facebook. When downloading completes the slot 1 (downloading slot) volition larn empty. Similarly when slot 2 finishes the slot  2 volition larn empty.

Reference Book: Data Communication And Networking 2d Edition
Reference Site: https://en.wikipedia.org/wiki/Multiplexing

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