Why Digital Communication?
We know, that the electronic communication can either be analog
or digital. Today’s world is going digital, so it is really
important to understand, the advantages of digital communication, that are
responsible for the digitalization everywhere.
So here in this post, we will see, why digital
communication is preferred over analog communication? But there are also some
disadvantages associated with the digital communication. These disadvantages
will also be discussed here. So first let's start with the advantages of
digital communication.
Advantages and Disadvantages of Digital Communication Video [HD]
Advantages of Digital Communication
1. Digital communication systems are simpler and
cheaper in implementation as compared to analog communication systems. It has
become possible due to advancements in Integrated Circuits (IC) technology. These
ICs are very small in size, reliable and cost-effective. Such ICs are used in digital
communication,
2. In digital communication, it is possible to use multiplexing
to merge speech, video and other forms of data for transmission over a common
channel.
The multiplexing is of various types like Time Division Multiplexing
(TDM), Frequency Division Multiplexing (FDM) or Code Division Multiplexing
(CDM).
I don’t want to deviate from the current topic, so I
will discuss the multiplexing in separate post.
3. High level of privacy can be obtained in digital
communication using data encryption technique. This privacy provides the
facility to allow the transmitted signals, to be received only by the permitted
receivers. This feature is of great importance in military applications.
4. In digital communication channel encoding is used. Because
of this encoding, there is less accumulation of noise from repeater to repeater,
in case of long-distance communication. Apart from this, the digital signals tend
to be less affected by noise as compared to analog signals.
5.
It is possible to perform lots of operations on
digital signals, like Digital Signal Processing (DSP), data compression, image
processing etc.
6. It is easy to detect and correct errors in digital
communication. This easy detection and correction of errors is possible due to
the use of channel coding in digital communication.
So these were the advantages of using digital
communication. These benefits encourage the use of digital communication in
place of analog communication.
Now we will discuss some disadvantages that are
associated with the digital communication.
Disadvantages of Digital Communication
1. More transmission bandwidth is required in digital
communication as compared to analog communication. This is due to the increase
in the data rate when analog signal is converted into digital signal.
2. In digital communication, in case of synchronous modulation, synchronization is required.
3. Due to various stages used in conversion, high power
consumption is another drawback of digital communication.
4. Sampling error is introduced in the sampling of signal.
5. Circuits that are used in digital communication are comparatively
more complex and sophisticated.
So this was the discussion about both advantages and
disadvantages of digital communication but it’s worth mentioning that the
advantages of using digital communication are more in comparison to disadvantages. Therefore digital communication is replacing analog communication nowadays.
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AMPLITUDE MODULATION (TIME DOMAIN EQUATIONS AND WAVEFORMS)
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Good internal communication can help increase the advantages of informal communication. It will slow down the rumor mill by communicating timely and frequently, and it will help employees to interpret information as well as instructions.
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ReplyDeleteAlways depend on planners, organizers and jot down the important points against the date set as the deadline to complete a particular task. #Davanti
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