multiplexing and its types pdf

Multiplexing And Its Types Pdf

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In any communication system that is either digital or analog, we need a communication channel for transmission. This channel can be a wired or a wireless link.

What is Multiplexer and Types of Multiplexing Techniques

Multiplexing is a technique used to combine and send the multiple data streams over a single medium. The process of combining the data streams is known as multiplexing and hardware used for multiplexing is known as a multiplexer. Multiplexing is achieved by using a device called Multiplexer MUX that combines n input lines to generate a single output line. Multiplexing follows many-to-one, i. DEMUX separates a signal into its component signals one input and n outputs. Therefore, we can say that demultiplexing follows the one-to-many approach. In the above figure, the Synchronous TDM technique is implemented.

In telecommunications , frequency-division multiplexing FDM is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands , each of which is used to carry a separate signal. This allows a single transmission medium such as a cable or optical fiber to be shared by multiple independent signals. Another use is to carry separate serial bits or segments of a higher rate signal in parallel. The most common example of frequency-division multiplexing is radio and television broadcasting, in which multiple radio signals at different frequencies pass through the air at the same time. Another example is cable television , in which many television channels are carried simultaneously on a single cable. FDM is also used by telephone systems to transmit multiple telephone calls through high capacity trunklines, communications satellites to transmit multiple channels of data on uplink and downlink radio beams, and broadband DSL modems to transmit large amounts of computer data through twisted pair telephone lines, among many other uses.

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Frequency-division multiplexing

In telecommunications and computer networks , multiplexing sometimes contracted to muxing is a method by which multiple analog or digital signals are combined into one signal over a shared medium. The aim is to share a scarce resource. For example, in telecommunications, several telephone calls may be carried using one wire. Multiplexing originated in telegraphy in the s, and is now widely applied in communications. In telephony , George Owen Squier is credited with the development of telephone carrier multiplexing in


Multiplexing is the process of combining multiple signals into one signal, over a shared medium. If analog signals are multiplexed, it is Analog.


MULTIPLEXING FDM, TDM AND TCM.pdf

Multiplexing is the process of combining multiple signals into one signal, over a shared medium. If analog signals are multiplexed, it is Analog Multiplexing and if digital signals are multiplexed, that process is Digital Multiplexing. The process of multiplexing divides a communication channel into several number of logical channels, allotting each one for a different message signal or a data stream to be transferred.

This technique is applicable in telecommunications as well as computer networks. For instance, in telecommunications, one cable is used for carrying different telephone calls. In the year , the multiplexing technique is invented first in telegraphy, and at present, it is extensively used in communications. The signal which is multiplexed will be transmitted over a cable or channel and separates the channel into numerous logic channels. This article discusses what is multiplexing , Different types of multiplexing techniques, and applications.

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Multiplexing

Types of Multiplexing Techniques

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2 Comments

  1. Delicia V.

    Download full-text PDF and digital multiplexing are the major classification.. Analog In synchronous TDM, if a device does not have data to send, then its.

    14.05.2021 at 02:45 Reply
  2. Meuris G.

    Types of multiplexing Multiplexing is done using a device called. Multiplexer (​MUX) that combine signal into its component signals i.e. one input and several​.

    21.05.2021 at 21:31 Reply

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