CE265-5-SP-CO:
Telecommunication Principles
PLEASE NOTE: This module is inactive. Visit the Module Directory to view modules and variants offered during the current academic year.
2023/24
Computer Science and Electronic Engineering (School of)
Colchester Campus
Spring
Undergraduate: Level 5
Inactive
Monday 15 January 2024
Friday 22 March 2024
15
04 October 2018
Requisites for this module
(none)
(none)
(none)
(none)
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The module starts by using the OSI model to place these layers in the context of the entire telecommunication system. It then describes the principal methods for the quantitative description of link signals, which then enables the fundamental link layer transmission media to be described as well as of baseband transmission. A discussion of link layer flow control and error correction naturally leads to description of link layer protocols. Finally, the transmission of digital signals over analogue links and analogue signals over digital lines are discussed. A coursework assignment will be set on the detailed planning of satellite up and down links. There will also be two progress tests.
The main aim of this module is to provide a detailed description of the data link layer of telecommunications systems and its interface with the physical layer of these systems.
After completing this module, students will be expected to be able to:
1. Outline the main features of the OSI model.
2. Describe the main properties of transmission media.
3. Explain data encoding and error correction.
4. Explain link-layer error correction and flow control techniques.
5. Describe link-layer protocols.
6. Explain analogue transmission over digital lines.
7. Explain digital transmission over analogue lines.
8. Manipulate signal transforms.
9. Use logarithmic techniques.
Outline Syllabus
. Introduction:
Telecommunications history;
Communications model;
Data communications networking;
Computer communication protocols;
OSI model.
. Signal Basics:
Time/frequency representation of signals and pulses;
Bandwidth;
Bit rate and symbol rate;
Spectral efficiency.
. Transform theory:
Transform theory;
Understand and manipulate signals in time;
Frequency and probability domains.
. Logarithm usage:
Use dB units to design systems and investigate power levels.
. Baseband Digital Transmission:
Transmission model (noise, interference, sampling, decision);
Pulse shaping;
Inter-symbol interference;
Eye diagram.
. Transmission Media:
Two-wire open system;
Twisted pairs lines;
Coaxial cables;
Optical fibres;
Satellite;
Microwave;
Radio.
. Data Transmission:
Basics;
Bit serial;
RTZ and NRTZ:
Communication mode:
Synchronous and asynchronous transmission;
Packetisation;
Character bit and frame synchronisation;
Error detection;
Flow control;
Data compression;
Transmission control circuits.
. Protocol Basics:
Error control;
Idle RQ;
Continuous RQ (selective and go-back-N);
Link utilisation;
Flow control;
Sequence number;
Link management.
. Data Link Control Protocols
Introduction;
Control-oriented protocols (simplex, half-duplex, duplex);
Bit-oriented protocols;
HDLC;
Multilink procedure;
Link access;
Logical link control.
. Attenuations and Distortions:
Attenuation;
Distortion;
Noise (impulsive and white);
Energy/bit;
Propagation delay;
Shannon-Hartley law.
. Physical Layer Interface:
Current loop;
RS232;
RS-449;
X.21.
. Transmission of Digital Signals over Analogue Lines:
PSTN;
Modems;
ASK;
FSK;
PSK;
m-PSK;
DPSK.
. Transmission of Analogue Signals over Digital Lines:
PCM, sampling;
Sample-and-hold;
Aliasing distortions;
Quantisation distortion;
Signal-to-quantisation noise ratio;
Pre- and post-filtering;
Grey code;
Non-linear quantisation;
Companding/expanding (A and ? law);
Data rate for speech;
Audio and video;
Digital multiplexing and digital hierarchy;
Data reduction;
DPCM.
. Demodulation:
Non-coherent demodulation;
Synchronous demodulation;
Phase locked loop.
This module does not appear to have a published bibliography for this year.
Assessment items, weightings and deadlines
| Coursework / exam |
Description |
Deadline |
Coursework weighting |
| Exam |
Main exam: In-Person, Open Book (Restricted), 120 minutes during Summer (Main Period)
|
| Exam |
Reassessment Main exam: In-Person, Open Book (Restricted), 120 minutes during September (Reassessment Period)
|
Exam format definitions
- Remote, open book: Your exam will take place remotely via an online learning platform. You may refer to any physical or electronic materials during the exam.
- In-person, open book: Your exam will take place on campus under invigilation. You may refer to any physical materials such as paper study notes or a textbook during the exam. Electronic devices may not be used in the exam.
- In-person, open book (restricted): The exam will take place on campus under invigilation. You may refer only to specific physical materials such as a named textbook during the exam. Permitted materials will be specified by your department. Electronic devices may not be used in the exam.
- In-person, closed book: The exam will take place on campus under invigilation. You may not refer to any physical materials or electronic devices during the exam. There may be times when a paper dictionary,
for example, may be permitted in an otherwise closed book exam. Any exceptions will be specified by your department.
Your department will provide further guidance before your exams.
Overall assessment
Reassessment
Module supervisor and teaching staff
Prof Stuart Walker, email: stuwal@essex.ac.uk.
Professor Stuart Walker
CSEE School Office, email: csee-schooloffice (non-Essex users should add @essex.ac.uk to create full e-mail address), Telephone 01206 872770
Yes
No
No
No external examiner information available for this module.
Available via Moodle
Of 31 hours, 30 (96.8%) hours available to students:
1 hours not recorded due to service coverage or fault;
0 hours not recorded due to opt-out by lecturer(s).
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