ufmfs7 15 3 cw assignment 2015 2016
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Communications (UFMFS7-15-3) Coursework Assignment 2015 - 2016
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MODULAR PROGRAMME
ASSESSMENT SPECIFICATION
Module Details
Module Code
UFMFS7-15-3
Run Module Title
Communications
Module LeaderSabir Ghauri
Module TutorsSabir Ghauri, Brain Carse
Component and Element Number
CW1
Weighting: (% of the Module's assessment)
50%
Element Description
Coursework Assignment(Numerical/Lab/Research)
Total Assignment time
25 hours
Dates
Date Issued to Students
10th
November 2015
Date to be Returned to Students
Submission Place
A Block(Help Desk open 9.00 - 6.00pm)
Submission Date21
stJanuary 2016
Submission Time
2.00 pm
Deliverables
Attached sheet details deliverables.
Module Leader Signature
http://fold.cems.uwe.ac.uk:8080/exist/servlet/db/fold1/prod/asstime.xqlhttp://fold.cems.uwe.ac.uk:8080/exist/servlet/db/fold1/prod/asstime.xql -
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COURSEWORK ASSIGNMENTCommunications (UFMFS7-15-3)
Purpose of the assignment
This assignment is intended to provide an opportunity for students to:-
(i) apply theoretical knowledge to design and understand the important
elements of telecommunication systems.(ii) carry out research-based exercise exploring the state-of-the-art in
modern communication systems to implement a design of a simple
communication system.(iii) become familiar with simulation techniques and in particular with the
use of the simulation package MATLAB.
(iv) produce a precise, concise and clear written solutions/report for
marking purposes.
Introduction
The coursework is divided into two parts. You are required to attempt one
section from Part 1 and the whole of the Part 2 (please see more details
regarding this part under Part 2 heading).
The coursework assignment will be carried out in groups (4 students in agroup). Part 2 is compulsory for all groups and you must declare your group
members names and which section are you attempting from Part 1. (Selection
of sections from Part 1 will be on first come first serve bases any section
selected by one group will not be allowed to any other group). For any
discussion on the topic or further information you may write to Dr. Sabir
Ghaurion his e-mail address:[email protected] Dr Brian Carseon
his e-mail [email protected]
The hand-in date of the CW assignment is on 21stJanuary 2016.
Resources
The NS2 Network Simulator
Documentation that includes all aspects (including good examples) of the
software is available athttp://www.isi.edu/nsnam/ns/
Matlab Communications Tool Box and Communication & RF Block set
available on PCs in Laboratory 2N40 with CEMS password
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]://www.isi.edu/nsnam/ns/http://www.isi.edu/nsnam/ns/http://www.isi.edu/nsnam/ns/http://www.isi.edu/nsnam/ns/mailto:[email protected]:[email protected] -
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PART 1: (Attempt only one section from this part)
Section A
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Section B
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Section C
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Section D
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QUESTION 3
A carrier of 1V is amplitude modulated by the signal, tV
tVv 2cos2
cos .
(a)Determine the maximum modulation factor that can be employed withoutover modulation occurring. [7 Marks]
(b)Use the modulation factor calculated in (a) to tabulate and plot themodulation envelope. [8 Marks]
(c)Write the frequency spectrum equation of a sinusoid modulated as DSBAM
wave and then represent it by phasor diagram for intervals of T/8, where T
is the periodic time of the modulating signal. [10 Marks]
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Section E
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Section F
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Section G
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Section H
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Section I
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Section J
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PART 2: (this part is compulsory for all students)
Design and Implementation of a Wireless
Acoustic Communication System
Introduction
This coursework project aims to design and implement an end-to-end digital
communication system over a poor quality communication channel.
The end goal is to achieve wireless acoustic communication system, in which a
speaker and a microphone are employed as the transmitting and receiving
antennas respectively. You will use Matlabs built-in capabilities that let you
emit a sound from the computer speaker, and record a sound incident upon themicrophone (e.g. see functions soundsc, sound, wavread, auread, . . .).
Many sources of noise and distortion will be present in this system, among
them, non-ideal and/or nonlinear speaker and microphone frequency responses,multipath propagation between the speaker and the microphone, propagation
delay, and ambient noise.
Your goal should be to overcome these challenges and design and implement asystem that achieves high bit rate throughput and reliable transmission.
You have full control over what to choose for the transmit filter, modulator,receive filter, and equalizer, and you are encouraged to try a number of
different combinations of these. It is also expected that you will make smart
choices about the type(s) of modulation to choose, and compare their
performances as well. This will involve a significant amount of background
research.
As part of the project, you may wish to start by modelling the acoustic
communication system and channel in MATLAB before implementing the
final physical system. In this case, you should carefully state your choice ofnon-ideal channel characteristics used.
Important points:
Do not forget practical necessities such as carrier and symbol
synchronization, and automatic gain control. For instance, it will be helpful
if you use a training (known) sequence or tone, to help in symbol timing
and also with equalization (see the figure below, which does not show
carrier synchronization or AGC blocks). You will need to research these
issues.
You are required not to use data compression or error correction/detectioncoding.
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Deliverables and Marking Scheme
You are required to submit a report of up to 12 pages for each group.
The report should include:
1. Your overall design (typically a schematic diagram). [20 Marks]
2. A description of the overall purpose of each component in the design and
why it is required. [30 Marks]
3. A detailed description of the design choices and calculations for each
component and for the system as a whole. [30 Marks]
4. You will also be required to give a brief demonstration of your system in
the final lab session of the semester. [20 Marks]
For any further clarification please write Dr Brian Carse on his e-mail address:
Additional Notes
Your research will draw on a number of sources of information. You are
welcome to include diagrams from other sources PROVIDED THESE ARE
SUITABLY REFERENCED. The written text MUST BE YOUR OWN
WORK. Unreferenced diagrams and inclusion of text from other sources (otherthan brief referenced quotations) will be treated as intentional plagiarism.
You are to use the Harvard referencing system, details of which can be foundon the UWE website. This is a worldwide standard referencing style.
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