Note: This unit version is currently being edited and is subject to change!
ELEC3505: Communications (2017 - Semester 1)
|Unit:||ELEC3505: Communications (6 CP)|
|Faculty/School:||School of Electrical & Information Engineering|
Professor Jamalipour, Abbas
|Session options:||Semester 1|
|Versions for this Unit:|
|Site(s) for this Unit:||
|Pre-Requisites:||ELEC2302. Confidence in mathematical operation usually needed to handle telecommunications problems such as Fourier transform, fundamental in signals and systems theory, convolution, and similar techniques.|
|Brief Handbook Description:||This is an intermediate unit of study in telecommunications following on the general concepts studied in earlier units such as Signal and Systems and leading on to more advanced units such as Digital Communication Systems. Student will learn how to critically design and evaluate digital communication systems including the elements of a digital transmission system, understand the limitations of communications channels, different analog and digital modulation schemes and reasons to use digital techniques instead of analog, and the effect of noise and interference in performance of the digital communication systems. On completion of this unit, students will have sufficient knowledge of the physical channel of a telecommunications network to approach the study of higher layers of the network stack.
The following topics are covered. Introduction to communications systems, random signals and stochastic process, components, signals and channels, sampling, quantization, pulse amplitude modulation (PAM), pulse code modulation (PCM), quantization noise, time division multiplexing, delta modulation. Digital communications: baseband signals, digital PAM, eye diagram, equalization, correlative coding, error probabilities in baseband digital transmission, bandpass transmission, digital amplitude shift keying (ASK), frequency shift keying (FSK), phase shift keying (PSK) and quadrature shift keying (QPSK), error probabilities in bandpass digital transmission, a case study of digital communication systems. Introduction to information theory: fundamental limits in communications, channel capacity and channel coding, signal compression.
Professor Jamalipour, Abbas
|T&L Activities:||Please see the Unit of Study webpage on Blackboard for details of Labs and Tutorials weekly schedule and reporting information.
Laboratory: Requires Lab Preparation Report (Individual) and Lab Final Report (Group)
Lab 1: System Modeling using TIMS
Lab 2: Amplitude Modulation (AM)
Lab 3: Frequency Modulation (FM)
Lab 4: PCM Encoding and Decoding
Lab 5: Pulse-Amplitude Modulation (PAM) and Time-Division Multiplexing (TDM)
Tutorials: You will have a set of questions for each tutorial session. It is recommended that you try to solve those questions before going to the tutorial session.
A short report for each tutorial session will be collected by the tutor on the day. The content will not be marked but it will be used to check the attendance. It is however suggested that you try to write your answers in that report.
The tutor will go through questions and give you the answers. If you just come to the session without any preparation, it won’t be useful at all. Remember that it is in nature of a Communications course that the theory taught in lectures cannot guarantee solving tutorial problems. So lectures and tutorials are complementing one another, don’t miss either of them.
Attributes listed here represent the key course goals (see Course Map tab) designated for this unit. The list below describes how these attributes are developed through practice in the unit. See Learning Outcomes and Assessment tabs for details of how these attributes are assessed.
|Attribute Development Method||Attribute Developed|
|Through assessment and assignments, students will become able to:
1. Exercise critical judgment in designing digital communication systems
2. Develop skills in rigorous, independent and creative thinking
3. Develop problem solving skills and account for their decisions
|Design (Level 3)|
|Developing knowledge in the area of digital communication and applying this knowledge to real situations. Understanding the merits and limitations of specific communication systems.||Engineering/IT Specialisation (Level 3)|
|Using appropriate technology to address specific needs. Exercising critical judgement in designing digital communication systems. Developing skills in rigorous, independent and creative thinking. Developing problem solving skills and account for their decisions.||Maths/Science Methods and Tools (Level 3)|
|Through lectures, tutorials, and labs students will become able to obtain the ability to use appropriate technology to develop communication systems addressing specific needs.
Through labs students will become able to apply this knowledge to real situations and understand the merits and limitations of specific communication systems, by implementing real hardware and testing the results.
|Professional Conduct (Level 2)|
|This task is to be done in a team and requires strict time and progress control as part of their project management skill training.||Project and Team Skills (Level 2)|
For explanation of attributes and levels see Engineering & IT Graduate Outcomes Table.
Learning outcomes are the key abilities and knowledge that will be assessed in this unit. They are listed according to the course goal supported by each. See Assessment Tab for details how each outcome is assessed.Design (Level 3)
Participation: Individual tutorial attendance report.
Lab Report: Individual Preparation Report & Group Lab Report.
First Exam: An open book 1-hour exam in class. This exam is for you to study and bring your knowledge up to date.
Second Exam: An open book 2-hour exam in class. This exam covers all parts of lectures during semester.
|Policies & Procedures:||See the policies page of the faculty website at http://sydney.edu.au/engineering/student-policies/ for information regarding university policies and local provisions and procedures within the Faculty of Engineering and Information Technologies.|
Note: Students are expected to have a personal copy of all books listed.
Note: References are provided for guidance purposes only. Students are advised to consult these books in the university library. Purchase is not required.
|Online Course Content:||ELearning Blackboard: https://elearning.sydney.edu.au/webapps/portal/frameset.jsp|
Note that the "Weeks" referred to in this Schedule are those of the official university semester calendar https://web.timetable.usyd.edu.au/calendar.jsp
|Week 1||Elements of communications systems, communication resources, source of information and noise.|
|Introduction to the Unit of Study.|
|Week 2||Communication networks, communications channels, modulation process, analog and digital communications, Shannon’s information capacity theorem, Examples|
|Week 3||Continuous-Wave Modulation.|
|Introduction to CWM, Amplitude modulation, linear modulation, DSB-SC modulation, Coherent detection, Quadrature carrier multiplexing.|
|Week 4||Single-sideband modulation, Vestigial sideband modulation, Frequency translation, FDM, angle modulation.|
|Week 5||FM, narrowband and wideband FM, nonlinear effects in FM noise in CWM, noise in AM and FM receivers.|
|Week 6||Pulse Modulation|
|Sampling process and sampling theorem, PAM, BW-noise trade-off, Quantization process.|
|Assessment Due: First Exam|
|Week 7||PCM, noise in PCM, TDM, digital multiplexers|
|No Lab, Tutorial due to Public Holiday on Wednesday|
|Week 8||Delta modulation, linear prediction, differential PCM, adaptive differential PCM.|
|Week 9||Matched filter, error rate due to noise, inter-symbol interference.|
|Baseband Pulse Transmission.|
|Week 10||Nyquist’s criterion, baseband M-ary PAM, DSL, optimum linear receiver, adaptive equalization.|
|Week 11||Signal-Space Analysis.|
|Geometric representation of signals, vector channel conversion, Likelihood functions, Coherent detection of signals in noise, correlation receiver, probability of error.|
|Week 12||Passband Digital Transmission.|
|Passband transmission model, coherent PSK, hybrid ASK/PSK, coherent FSK, Unknown phase signal detection, non-coherent orthogonal modulation, non-coherent binary FSK.|
|Assessment Due: Second Exam|
|Week 13||Differential PSK, comparison between different digital modulation schemes, voice-band modems, multi-channel modulation, synchronization.|
The following is a list of courses which have added this Unit to their structure.
This unit contributes to the achievement of the following course goals:
|Design (Level 3)||Yes||14%|
|Engineering/IT Specialisation (Level 3)||Yes||72.67%|
|Maths/Science Methods and Tools (Level 3)||Yes||0%|
|Communication (Level 3)||No||0%|
|Professional Conduct (Level 2)||Yes||6.67%|
|Project and Team Skills (Level 2)||Yes||6.67%|
These goals are selected from Engineering & IT Graduate Outcomes Table which defines overall goals for courses where this unit is primarily offered. See Engineering & IT Graduate Outcomes Table for details of the attributes and levels to be developed in the course as a whole. Percentage figures alongside each course goal provide a rough indication of their relative weighting in assessment for this unit. Note that not all goals are necessarily part of assessment. Some may be more about practice activity. See Learning outcomes for details of what is assessed in relation to each goal and Assessment for details of how the outcome is assessed. See Attributes for details of practice provided for each goal.