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The aim of this subject is to develop a thorough understanding of the main concepts, techniques and performance criteria used in the analysis and design of digital communication systems. Such systems lie at the heart of the information and communication technologies (ICT) that underpin modern society. Digital communications have become the preferred option for many communication devices, replacing analogue systems, due to their robustness to noise, ease of standardisation and increased scale of integration.
This subject provides an in-depth treatment of the main concepts and techniques used in the analysis and design of digital communication systems.
- Source coding; data compression; entropy;
- Digital modulation and demodulation, with and without bandwidth constraints; signal constellations in signal vector space; M-ary signalling and probability of error calculations for AWGN channels; Nyquist’s criterion, pulse shaping and equalisation; sequence detection; Viterbi’s algorithm;
- Mutual information and channel capacity; BSC and erasure channels; Shannon bounds; channel coding; erasure coding; block codes; convolutional / trellis codes; error-correction; and decoding methods.
This material is complemented by examples such as JPEG, the compact disc, satellite communication systems, and mobile communication systems.
Intended learning outcomes
INTENDED LEARNING OUTCOMES (ILOs)
Having completed this subject the student is expected to:
- Understand the various blocks that constitute a digital communication system and understand how they interrelate
- Be able to qualitatively and quantitatively analyse and evaluate digital communication systems
- Recognise the broad applicability of digital communication systems in society
- Use software tools to analyse, design and evaluate digital communication systems
On completion of this subject, students will have developed the following skills:
- Ability to apply knowledge of basic science and engineering fundamentals;
- In-depth technical competence in at least one engineering discipline;
- Ability to undertake problem identification, formulation and solution;
- Ability to utilise a systems approach to design and operational performance;
- Capacity for independent critical thought, rational inquiry and self-directed learning;
- Ability to communicate effectively, with the engineering team and with the community at large.
Last updated: 3 November 2022