Hello, Friends Welcome to our website in this we are going to talk about Multiplexing in a computer network, in this blog we cover all these Topics- (FDM),(WDM),(TDM), And (CDM). Full details are given below.
In this post, I have also given you information about four types of multiplex that you can read and know about multiplexing in a computer network.
Multiplexing in computer networks is a technique by which various Analog and Digital stream Signals of Transmission can be processed on a link simultaneously.
Multiplexing divides a high-capacity medium into a low-capacity logical medium, which is then shared by various streams to a high-capacity medium into a low-capacity medium.
Communication on radio frequency in the air is possible using physical medium (cable) and light.
All mediums are capable of multiplexing. When many senders try to send Analog and Digital stream Signals through a single channel.
So a tool called Multiplex splits the physical channel and allots each one.
At the other end of the communication, a D-multiplex receives data through a single medium. Identifies each and sends it to different receivers.
ADVANTAGES OF MULTIPLEXING IN COMPUTER NETWORKS:-
- More than one signal can be sent over a single medium or link.
- Effective use of the bandwidth of medium.
TYPES OF MULTIPLEXING IN COMPUTER NETWORK
- FDM
- TDM
- WDM
- CDM
WHAT IS FDM:-
Friends, for your information, FDM has full form – Frequency Division Multiplexing in a computer network. When the carrier is frequency, So FDM is used, FDM is an analog technique.
FDM divides spectrum & carrier bandwidth into logical channels and each channel is allotted by one user.
Each user can use the channel frequency independently and has exclusive access. All channels are divided in this way.
That they do not overlap with each other. The channel is separated by a guard band. a guard band is a frequency.
WHAT IS TDM:-
Friends TDM has full form – Time Division Multiplexing in a computer network. TDM mainly applies to Digital signals, But it can also be applied to analog signals.
In TDM the Share channel is split between its users via Time Slot. Each user can transmit data within the time slot provided.
Digital signals are divided into frames. Equal to Time Slot ie an optimum size frame that can be transmitted in a given Time Slot.
TDM works in synchronized mode. Both ends, ie Multiplex and D-multiplex are synchronized over time and both simultaneously switch to the next channel.
When channel A delivers its frame to one end. So D-multiplex delivers media to channel A at the other end. As soon as Channel A’s Time Slot ends.
It switches to side-channel B. On the other end, D-multiplex works in a synchronized manner and provides media to channel B. Signal of different channels travels in an interleaved manner.
WHAT IS WDM:-
Friends WDM has full form – Wavelength Division Multiplexing in a computer network. Light has different wavelengths i.e. colors. In fiber-optic mode, many optical carrier signals are multiplied into optical fibers using different wavelengths.
It is an analog multiplexing technology and is used conceptually similar to FDM. But uses light as signals. Also, it was incorporated to accommodate more data signals at each wavelength time division.
WHAT IS CDM:-
Friends, the full form of CDM-Code Division is Multiplexing in computer networks. Multiple data signals can be transmitted at a single frequency using Code Division Multiplexing. FDM divides the frequency into smaller channels.
But CDM allows its users to broadcast Full Bandwidth and Signal at all times using a unique code. CDM uses orthogonal code to transmit signals.
Each station is assigned a unique code. Which is called a chip. Signals travel freely with these codes within the entire bandwidth. The receiver already knows the received chip-code signal.
Conclusion-
We hope you have got complete information about what is multiplexing in the computer network – and its type. We always try this.
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