CE265-5-SP-CO: Telecommunication Principles
Department: Computer Science and Electronic Engineering
Essex credit: 15
ECTS credit: 7.5
Available to Study Abroad / Exchange Students: Yes
Full Year Module Available to Study Abroad / Exchange Students for a Single Term: No
Outside Option: No
Professor Stuart Walker
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
|Module is taught during the following terms
This 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. It 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.
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.
Data communications networking;
Computer communication protocols;
. Signal Basics:
Time/frequency representation of signals and pulses;
Bit rate and symbol rate;
. 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);
. Transmission Media:
Two-wire open system;
Twisted pairs lines;
. Data Transmission:
RTZ and NRTZ:
Synchronous and asynchronous transmission;
Character bit and frame synchronisation;
Transmission control circuits.
. Protocol Basics:
Continuous RQ (selective and go-back-N);
. Data Link Control Protocols
Control-oriented protocols (simplex, half-duplex, duplex);
Logical link control.
. Attenuations and Distortions:
Noise (impulsive and white);
. Physical Layer Interface:
. Transmission of Digital Signals over Analogue Lines:
. Transmission of Analogue Signals over Digital Lines:
Signal-to-quantisation noise ratio;
Pre- and post-filtering;
Companding/expanding (A and ? law);
Data rate for speech;
Audio and video;
Digital multiplexing and digital hierarchy;
Phase locked loop.
Learning and Teaching Methods
Lectures and Classes
30 per cent Coursework Mark, 70 per cent Exam Mark
Progress Test, worth 10%, held in week 21;
Assignment 1: Satelite link design, worth 20%, submitted in week 23
Exam Duration and Period
2:00 during Summer Examination period.
STUDENTS SHOULD NOTE THAT THIS MODULE INFORMATION IS SUBJECT TO REVIEW AND CHANGE
- Highly Recommended Reading (core texts)
- HALSALL, F, Data Communications, Computer Networks and Open Systems, Addison Wesley, 4th edition, 1996, TK 5105.H2
- BATEMAN, A, Digital Communications, Addison-Wesley, 1999, TK 5103.7.B2
- SKLAR, B, Digital Communications: Fundamentals and Applications, Prentice-Hall 2nd edition, 2001, TK 5103.7.S5