Mathematical Models Of Communication Channel Pdf

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Official Paper 1: Held on 24 Sep 2020 Shift 1

50 Questions 100 Marks 60 Mins

Shannon and Weaver proposed a mathematical model of communication. Other than the concept, sender, encoder, channel, decoder, and receiver of Shannon-Weaver's model, there is also a concept of "noise" included in the model, that goes through the channel and reduces the message more difficult to recognize by the receiver.

According to the model, there are five most significant elements of the communication process.

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1) Source:

Source decides the information message which has to be transmitted.
The message can be any part, idea, attitude opinion.

2) Transmitter:-

The transmitter is actually which changes the information message into signals which are then transmitted to the receiver of the message.

3) Receiver:-

In any communication process, there is always a receiver that changes the signal again into the message which can be understandable by the destination.

4) Destination:-

The destination is that for which the message is actually meant for.
The transmitted signal is decoded by the receiver and then it is sent to the destination.

5) Noise:-

The dictionary meaning of noise is an unpleasant sound.
Noise actually distorts the source. This makes communication ineffective.
It is the basic physical or technical barrier in the communication process.
Noise can completely change the actual meaning of the transmitted message.
Noise can be anything that can occur when the message is traversing through the communication channel.
Noise can be static, technical, or physical Noise may be verbal or non-verbal.
Anything that distracts the communication process like any physical sound, tone, any buzz, etc.