Different Communication Channels and Modelling of Different Communication Systems

STUDENT’S NAME/NUMBER:
AWARD: LEVEL 4
MODULE TITLE: Profession Development & Engineering
Applications.
MODULE CODE: ELEC41010.
MODULE TUTOR: Abdel Hamid Salima.
SUBMISSION DATE: 15th May 2019.
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TITLE
DIFFERENT COMMUNICATION CHANNELS
AND MODELLING OF DIFFERENT
COMMUNICATION SYSTEMS.
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Abstract
The aim of this research is to develop an in depth understanding of the technical aspects of
different communication channels and to enhance my skills in modelling different
communication systems. I researched on different communication media, their advantages
and disadvantages, different channel losses, noise, interference and signal distortion. I also
researched on various ways to minimise or eliminate these effects on the transmitted
signals.
In my findings, I found that there is different ways to minimise the effects of noise in
different communication media. In case of twisted pair cable I find the increasing the
number of turns per foot is one of the ways to minimise the effect of noise on the
transmitted signal. The metal foil in the shielded twisted pair cable is used as a measure to
minimise the electromagnetic effects on the transmitted signals. In fibre optic cable, there
are various ways to reduce losses. This include use of high quality cables, uses of qualified
connectors, ensuring that there is no light linkage in the joints and ensuring that the
installation is done by expert team. (MacAskill et al., 2013)
I also found that unguided media or the wireless media tend to loss signals as the distance
between receiver and sender gets longer. The signal transmitted over the unguided media
can get affect by weather conditions such as rain and fog. Locations of the antennas also
effect the signal transmission. Therefore the location of this antenna should be free from
obstacles to minimise signal losses. (Choi et al., pp 1-12, 2010)
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Table of Contents
Introduction.......................................................................................................................................5
Different types of transmission media...............................................................................................5
I. Guided (wired) communication media..................................................................................6
Twisted pair cables....................................................................................................................6
Coaxial Cables..........................................................................................................................7
Fibre Optic Cables.....................................................................................................................8
II. Unguided (wireless) communication media........................................................................10
Satellite microwave.................................................................................................................10
Terrestrial microwave transmission........................................................................................11
Radio broadcast.......................................................................................................................11
Noise...............................................................................................................................................12
Distortion........................................................................................................................................12
Conclusion.......................................................................................................................................12
References......................................................................................................................................13
Table of figures
Figure 1 Communication from transmitter through communication media to receiver.....................5
Figure 2 Tree diagram of different types of communication media...................................................5
Figure 3 UTP cables..........................................................................................................................6
Figure 4 STP cables..........................................................................................................................7
Figure 5 Different parts of coaxial cables..........................................................................................7
Figure 6 Different types of coaxial cable connectors........................................................................8
Figure 7 Inner view of fibre optic cable.............................................................................................9
Figure 8 Different types of fibre optic cable connectors....................................................................9
Figure 9 Illustration of satellite setups............................................................................................10
Figure 10 illustration of terrestrial antenna setup.............................................................................11
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