ME503 Telecommunication System Engineering1Assignment One

ME503 – Telecommunication System Engineering 

Assessment Details and Submission Guidelines
SchoolSITE
Course NameMEng
Unit CodeME503
Unit TitleTelecommunication System Engineering
Assessment AuthorDr Rajan Kadel
Assessment TypeIndividual Assessment
Assessment TitleUnderstanding the fundamental systems engineering principles and their applications in telecommunication systems.
Unit Learning Outcomes covered in this assessmenta.       Demonstrate in-depth knowledge of system engineering and understand how to make a system more reliable and efficient;

b.      Acquire in-depth technical knowledge of signalling, switching and call routing in Public Switched Telephone Network (PSTN) and population queuing models;

c.       Obtain conceptual knowledge and understanding of system reliability, maintainability, costing and design for affordability and human factors;

d.      Demonstrate an in-depth understanding and knowledge of Digital Microwave Radio Systems;

e.       Design Microwave links, path profile construction and acquire a comprehensive understanding of atmospheric effects on the performance of microwave links ;

Weight15%
Total Marks60
Word limit1200
Release DateWeek 3
Due Date27 April 2018, 11:55pm
Submission Guidelines·      All work must be submitted on Moodle by the due date along with a completed Assignment Cover Page.

·      The assignment must be in MS Word format, 1.5 spacing, 11-pt Calibri (Body) font and 2 cm margins on all four sides of your page with appropriate section headings.

·      Reference sources must be cited in the text of the report, and listed appropriately at the end in a reference list using APA or IEEE referencing style for School of Business and School of Information Technology and Engineering respectively.

Extension·      If an extension of time to submit work is required, a Special Consideration Application must be submitted directly to the School’s Administration Officer, in Melbourne on Level 6 or in Sydney on Level 7.  You must submit this application three working days prior to the due date of the assignment. Further information is available at:

http://www.mit.edu.au/about-mit/institute-publications/policies-procedures-and-guidelines/specialconsiderationdeferment

Academic Misconduct 

 

·      Academic Misconduct is a serious offence. Depending on the seriousness of the case, penalties can vary from a written warning or zero marks to exclusion from the course or rescinding the degree. Students should make themselves familiar with the full policy and procedure available at:http://www.mit.edu.au/about-mit/institute-publications/policies-procedures-and-guidelines/Plagiarism-Academic-Misconduct-Policy-Procedure.For further information, please refer to the Academic Integrity Section in your Unit Description.

 Assignment Description

The purpose of this assignment is to motivate students to seek to understand the fundamental systems engineering principles and their applications in telecommunication systems. The assignment has two parts: Part A and Part B.

Part A                                                                                                                                    (40 marks)

Question 1: Reliability of a Parallel System                                               (5×2 marks = 10 marks)

Consider the system shown in Figure 1, which is a model of an active redundant generator at a main exchange of Telecommunication Company.

                                                        InputME503 Telecommunication System Engineering

Figure 1: Active redundant generator pair

  1. Assume that the reliability of each subsystem (or component) i has the reliability of Ri.

Calculate the reliability of the overall system RS as a function of Ri.

  1. If the reliability of component i at time t is Ri(t)=eλit, what is the reliability function of the overall system at time t?
  2. Evaluate the mean time to failure (MTTF) of the overall system as a function of λi using the reliability function in part (b).
  3. Calculate the failure rate of the overall system with exponential reliability. Hint use binomial distribution.
  4. What is the mean time before failure (MTBF) of the above system?

Question 2 Digital Microwave Radio System                                   (4×2.5 Marks = 10 marks)

A point-to-point digital microwave radio system is required by a bank to link the LANs of two of its branches at 2.048 Mbps transmission speed. The handbook delivered by the manufacturer has dimensioned the entire radio terminal with the reliability:

MTBF (mean time between failures): 100,000 hours

MTTR (mean time to repair): 2 hours (equipment only)

The radio path availability was calculated for =10-8 and found to be 99.999% for the average worst case. The system configuration is shown in Figure 1.

  1. Calculate the overall system availability
  2. Draw the reliability diagram of the system
  3. How would you increase the availability of the system required by the bank?
  4. The useful life of the equipment shown in Figure 2 is 15 years. Calculate the reliability of the one radio terminal at the end of it life.

Question 3 High Seed Connectivity                                                                        (10 marks)

Access to the Internet has arguably become an essential service. However, the quality of the service varies widely in Australia. Multiple governments had promised (and begun to deliver) a high-speed connectivity throughout Australia via the NBN. Discuss and briefly explain the NBN technology. The discussion must be based on research findings, e.g. reference must be made of at least two journals.

Question 4 Functions of a Telecommunication Network                       (5 + 5 = 10 marks) 

The functions of a telecommunication network, whether it is wired or wireless, are specified by the size of its coverage area and traffic carrying capacity. On the other hand, the performance of the network is specified by its quality of service.

  1. What limits the size of the coverage area of a telephone exchange?
  2. What limits the traffic carrying capacity of a telephone exchange?

Marking Rubric for Telecommunications Problems 

Grade

Mark

HD

80%+

D

70%-79%

CR

60%-69%

P

50%-59%

Fail

< 50%

 ExcellentVery GoodGoodSatisfactoryUnsatisfactory
Evaluation

 

 

Logic is clear and easy to follow with strong argumentsConsistency logical and convincingMostly consistent and convincingAdequate cohesion and convictionArgument is confused and disjointed
Sophistication and effectivity

 

 

The presented solution demonstrated an extreme degree of sophistication and effective.The presented solution demonstrated a high degree of sophistication and effective.The presented solution demonstrated an average degree of sophistication and effective.The presented solution demonstrated a low degree of sophistication and effective.The presented solution demonstrated a poor degree of sophistication and effective.
ExplanationAll elements are present and well integrated.Components present with good cohesionComponents present and mostly well integratedMost components presentLacks structure.
Reference styleClear styles with excellent source of references.Clear referencing/ styleGenerally good referencing/styleUnclear referencing/styleLacks consistency with many errors
Report structure and report presentationProper writing. Professionally presentedProperly written, with some minor deficienciesMostly good, but some structure or presentation problemsAcceptable presentationPoor  structure, careless presentation

 Part B                                                                                                                         (20 marks)

Every student has to watch all the weekly YouTube videos relating to the topic for the week and write reflective journal weekly from week one (1) to five (5).

The purpose of this assignment is to identify new learning, self-realization and plan for improvement. Students will have an opportunity to explore the use of the online tools (eg: online blogs) to record and reflect on their learning in different ways. Students are required to:

  • record the development of their ideas or insights
  • reflect upon the unit content and personal experiences
  • analyse their own learning and self-development
  • plan to improve on identified strengths and weaknesses  and

Students are required to explore situations from a personal perspective, and/or based on previous learning/industry experience. They may use the DEEP method to reflective writing. The four steps in this method are:

  • D Describe experience (past or present)
  • EExplore or consolidate new learning
  • EEvaluate/analyse/self reaction
  • P Plan future learning
 Description
Week No 
Describe 
Explore 
Evaluate 
Plan 

Mark allocations:

Section to be included in the report Description of the section Marks
Part A: Reflective journal for five weeks  (4*5=20 Marks) 
Weekly reflective journalOverall quality of reflective journal1
Technical relevanceDepth (technical) of the review presented to the subject matter.2
Critical reflectionDoes the report submitted by the student demonstrate reflection?1
PlagiarismDid the student do any of these without reference and reflection?

–          Copy from other student(s)

–          Copy from Internet source/textbook

–          Copy from other sources

-4

 Marking criteria for Reflective Journal

MARKING CRITERIAVery goodGoodAveragePoorVery poor
DescriptionClear & comprehensive description of an event/issue in a professional matterClear description of an event/issue in a professional matter with minimal elaboration of a comprehensive natureIncludes description of events, and a little further consideration behind the eventsand a little further consideration behind the eventsOnly includes mere descriptions of theoretical knowledge; unclear reflection is demonstrated beyond the descriptionsUnclear or disjoint description of the event; no reflection is demonstrated
ExploreWriting is well-focused; arguments or perspectives are precisely defined and explainedArguments or perspectives are clearly stated; organized flow in writing but not deep enough to be very insightfulArguments or perspectives are vaguely mentioned; the writing lacked an organized flow and the ideas were hard to followUnclear arguments or perspectives; the writing lacks the original perspectivesDo not show any original thinking or perspectives; chaotic in organization and presentation of ideas
Evaluate Critical analysis and evaluation of the event; writing demonstrated objectified thinking; evidence of critical analysis and integration of relevant literatureMinimal analysis of the event or issue;

Contemplation of the event or issue for the purpose of deeper understanding;

Integration of evidence based literature and other resources to inform practice

Superficial analysis of the event or issue; minimal integration of theory and evidence based literature and other resourcesbasic analysis

and/or evaluation of the event;

does not employ any critical thinking approach.

fails to analyse or evaluate adequately; cannot

apply critical thinking

approaches

 

Plan

 

Makes meaning of the experience and its implication of the future practiceDemonstrates plan with a view to improving practiceDevelopment gained from the learning process is hardly observedMake entries are mere descriptions of events rather than showing a plan for the future learningDemonstrates no plans for future learning
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