ITECH2300 Mobile Network & Wireless Communication

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ITECH2300
Mobile Network & Wireless Communication
Assignment 1 – Semester 2, 2020
Submission Guidelines
 Deadline: Sunday 13 September, 2020 (11:55pm midnight on Moodle)
 Submission format: PDF only. You can use any freely available pdf converter to
make pdf file from editable one.
 Submission platform: upload via Moodle
 Files to submit:
 You need to submit only one file: Assign1(student_id).pdf
 Create a single file that contain answer to all questions
 No late submissions unless SPECIAL CONSIDERAION IS PROCESSED
Plagiarism: It is an academic requirement that your submitted work be original. Zero
marks will be awarded for the whole submission if there is any evidence of copying,
collaboration, pasting from websites, or copying from textbooks. –Plagiarism policy
applies to all assessments
Marks
• This assignment is worth 15% of the total marks.
• The assignment is marked out of 45 nominal marks.
• For example, if you obtain 30 marks for this assignment, it will contribute
(30/45)*15=10 marks to you final grade.
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Assignment Questions
Part –A
Q1. Given the bit pattern 10111010, encode this data using ASK, FSK and PSK (i.e.,
draw the waveform that represents each ‘1’ or ‘0’ in a neat diagram). In the
diagram, label the amplitude values used in ASK, frequency values used in BFSK
(binary FSK because there are only 0 and 1 in the data), as well as the phase
values used in BPSK (binary PSK).
Encode the same data using QPSK.
(Hint: see slides on ASK, FSK & PSK in Lecture 5). [2+2+2+3=9 marks]
Q2. A sinusoidal wave is presented by an equation: Asin(2πft+φ). For the following two
sinusoidal waves find the value of A, f and φ. (Hint: Consult lab/tutorial in week 3).
[3+3=6 marks]
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Q3. The Square Kilometre Array (SKA) is one of the biggest projects planned in
Australia that has international importance. Read articles on SKA and write a report
of minimum 700 words. Your report should include the wireless communication
features of it, such a type, size and height of the antennas, communication
frequency bands, and any other technical specifications relevant to wireless
communication technology. You should may also include diagrams.
Your report should have references from journal/magazine articles and web
resources.
[12 marks]
Part B – Studying home office wireless routers [Total 18 marks]
Q4. Some company staff members will require after hour access to the systems at the
office, and to the Internet for research projects. The intention is for the company to
purchase broadband capability for these staff members’ home offices. Your task is to
perform a comparative assessment of ADSL2+ equipment versus Cable modem
equipment to determine which offers a better capability. The intention of this exercise to
understand the technical specification of two different types of router and know their
comparative advantages and limitations.
Select one ADSL2+ Modem-Router and one Cable Modem (Router) products in the
market and perform the following comparisons, in tabular form, item by item:
Line Interface [5 marks]:
Modulation type
Modulation bit rates achievable (including distance limitations)
What error control strategy is used if any?
Is the modulation sensitive to crosstalk?
What cable and connector types are required for the line interface?
Host Interface [5 marks]:
What host side interfaces are provided? (Hint: Ethernet, Firewire, USB2)
What bit rates do these support?
How many ports are provided?
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Is an embedded switching capability provided?
Is DHCP provided?
Modulation Comparison and Recommendation [8=(5+3) marks]:
After you have completed, in tabular form, the comparison of basic parameters and
specifications, provide a comparison of at least 300 words between the modulation types
used in these products, explaining their respective strengths and weaknesses for this
application.
Based on the information you have gathered in the table, which type of wireless router
would you recommended. Justify your answer within 200 words.