Evolution of networks
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Barfzhpu
Business Finance
Description
Part 1
You are required to carry out the literature review on the evolution of cellular networks. Conducting up to date research survey on the evolution of mobile communication systems. The candidates are required to investigate the effects of risks (such as health and safety, commercial, and security) due to this evolution of mobile communication system. This task aims to study the current state of the art developments in the modern mobile and wireless telecommunication systems and risks such as security, ethical, and health and safety issues involved in such systems.
You are required to:
- Understanding the subject
- Structure (sensible headings and sub-headings)
- Correct Terminology
- 3rd Person
- References (must be peer reviewed journals)
- Citations
- Flow nicely
*Word count for this report is 1500 words.
Part 2
Do the theoretical calculations along with modelling of different aspects in communication system and interpretation of results.
The purpose of a communication system is to carry information from a source
to a destination through a reliable medium. In practice, the issues arise in
transmitting the baseband signal. The limitations of baseband transmission
can be overcome using modulation. It is a technique in which the baseband
signal is translated from lower frequency on to the higher frequency of the
carrier wave. In analogue communications, the modulation techniques are
categorized into linear and nonlinear modulation schemes. They can be given
as:
Linear Modulation schemes
- Amplitude modulation (AM),
- Double sideband suppressed carrier amplitude modulation (DSBSC-AM),
- Single sideband suppressed carrier amplitude modulation (SSBC-AM)
- Vestigial sideband modulation (VSB)
Nonlinear Modulation schemes
- Frequency modulation (FM)
- Phase modulation (PM)
You are required to select any two from linear modulation
schemes and one from nonlinear modulation schemes and perform the
following tasks:
1. Derive expression for modulated signal ๐ ๐ก for each modulation technique
when the baseband signal is ๐ (๐ก) = ๐ดm๐๐๐ 2๐๐m๐ก and the carrier signal is
๐(๐ก) = ๐ดc๐๐๐ 2๐๐c๐ก
2. For each modulation technique ๐ (๐ก) is transmitted through Additive white
Gaussian noise channel with power spectral density
๐n ๐ = 1ร10-11 ๐๐ป๐ง!! and bandwidth of 5.5KHz. The channel has
attenuation of 50dB. Compute the SNR as function of transmitted power of
modulated signal, when the signal is detected using coherent detection.
3. Plot the SNR with respect to the transmitted power of the received
modulated signal for each modulation scheme. Compare the SNR results
and comment on the performance of the respective modulation techniques
Word count for this report is 1500 words with discerption.
The report should include:
A description of the overall purpose of each component in the design
and why it is required. Note: for this section you will need to use your
background research on communication channel impairments and
techniques which can be used to help deal with these
***In-Text Citations and References using Harvard style
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