| CODE | CCE5200 | |||||||||
| TITLE | Digital Communications | |||||||||
| UM LEVEL | 05 - Postgraduate Modular Diploma or Degree Course | |||||||||
| MQF LEVEL | 7 | |||||||||
| ECTS CREDITS | 6 | |||||||||
| DEPARTMENT | Communications and Computer Engineering | |||||||||
| DESCRIPTION | This study-unit covers the mathematical models that are required to understand the relationship between the various parameters in a digital communication system. The first part of the study-unit is a review of the basic concepts that make up a digital communication system namely, Sampling and Quantisation and Base-Band data transmission. The model for the Additive White Gaussian Noise channel is defined and is subsequently used to develop models to study the performance of optimum receivers in noise, Intersymbol Interference, Partial Response Signalling, and Equalisation. The second part of the study-unit tackles bandpass data transmission, where models to study the error performance of modulation techniques (ASK, PSK, FSK, DPSK, Multiphase PSK, Multifrequency FSK, QAM) are developed, assuming both coherent detection and non-coherent detection in AWGN channels. The Nyquist minimum bandwidth and Shannon-Hartley Capacity Theorem are revisited in the light of Bandwidth-Efficient Modulation schemes and issues and losses resulting from the quest to optimize carrier, symbol and frame synchronization. The third part of this study-unit deals with multiplexing and multiple access techniques namely, Frequency division, Time division and Code Division Multiple Access (CDMA). Finally, the study-unit concludes with advanced topics in digital communications namely, Frequency Hopping techniques, Direct Sequence Spread Spectrum, Jamming and Fading Channels. Learning Outcomes: By the end of the study-unit the student will be able to: - List the various options that can be considered when designing a digital communication system; - Compute digital communications parameters; - Analyse and interpret digital communication models and the relevant computations; - Given an example of a realistic communication system, select and evaluate an appropriate model; - Given a communication systems scenario, analyse and evaluate via computer simulation the performance of modulation or demodulation or multiple access schemes over an AWGN channel. Main Text/s and any supplementary readings: - B. Sklar, Digital communications: Fundamentals and applications (2nd Ed), Englewood Cliffs, New Jersey, Prentice Hall, 2001. |
|||||||||
| STUDY-UNIT TYPE | Lecture | |||||||||
| METHOD OF ASSESSMENT |
|
|||||||||
| LECTURER/S | Victor Buttigieg |
|||||||||
|
The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints. Units not attracting a sufficient number of registrations may be withdrawn without notice. It should be noted that all the information in the description above applies to study-units available during the academic year 2023/4. It may be subject to change in subsequent years. |
||||||||||