Search    Print

Trasmissioni Numeriche
Digital Transmissions
Franco Chiaraluce

Seat Ingegneria
A.A. 2016/2017
Credits 9
Hours 72
Period I
Language ENG

Prerequisites
The Course exploits knowledge acquired in the 3-years laurea degree. Though not mandatory, it is useful that the student has some familiarity with the basic concepts of telecommunications.

Learning outcomes
KNOWLEDGE AND UNDERSTANDING:
To know and understand the new issues in modern digital transmission techniques, with an approach that emphasizes the need for mathematical rigor but which nonetheless preserves its most intuitive aspects.
CAPACITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
The student shall know the modern techniques for generating, transmitting, protecting and detecting, at the receiver, the transmitted information, by employing advanced mathematical tools, suited for the design of new telecommunication systems. This way, he will acquire a series of vocational skills, such as: 1. the ability to design systems for coding, equalization and detction of the information based on soft decision; 2. the ability to analyze the performance of digital transmission systems over unconventional channels, like those affected by jamming; 3. the ability to propose solutions that can guarantee an assigned level of reliability for the transmission, jointly with a good degree of physical layer security. The student shall demonstrate to be able to apply the knowledge acquired also in the framework of a project, based on Matlab, to develop during the course.
TRANSVERSAL SKILLS:
The software project to develop during the course will be executed in groups and will contribute to improve the ability of the students to cooperate, communicate and elaborate, as well as the ability to draw shared conclusions.

Program
Contents (Frontal lectures, 54 hours) - Main transmission formats: fundamental parameters and representation methods. - Structure and features of a digital modulator. - Optimal receiver over the AWGN channel and in the presence of colored noise. - Viterbi's algorithm with soft decision. - Intersymbol interference in the presence of thermal noise and bandwidth limitations (soft detection). - Modulation techniques with high spectral efficiency. - Evaluation of the power spectrum for baseband and passband signals. - Outline of physical layer security. - Jamming channels. Classroom exercises (18 hours) - Software to simulate digital transmission systems.

Development of the examination
LEARNING EVALUATION METHODS
The exam consists of an oral test. If necessary, the questions requiring the execution of short calculations are answered in written form during the oral test. The student is asked to illustrate the theoretical foundations and examples of application of the modern techniques for the generation, transmission, protection and detection at the receiver of the transmitted information. Moreover, the student must demonstrate to be able to apply the knowledge acquired in the framework of a sofware project developed also (though not necessarily) in groups during the course.

LEARNING EVALUATION CRITERIA
The student must demonstrate to possess an adequate knowledge of the course's contents, exposing them in a sufficiently correct way, by using the right technical notation and by showing an adequate capacity to formalize the problems, also as regards the mathematical issues. The maximum mark is reached by demonstrating to have a deep and thorough knowledge of the topics, and a complete control of the technical and formal language.

LEARNING MEASUREMENT CRITERIA
The learning level is measured by the student's capacity to demonstrate his knowledge and comprehension of the innovative aspects in modern digital transmission techniques, through an approach that combines the mathematical rigor with the intuitive interpretation of the phenomena.

FINAL MARK ALLOCATION CRITERIA
The oral exam consists of two or three questions, depending on the topics discussed during the interview. Each answer receives a mark ranging between 0 and 15 (for the case of two questions) or between 0 and 10 (for the case of three questions). Laude is assigned to those students who, having reached the maximum mark, demonstrate a thorough knowledge of the subjects.

Recommended reading
1. Set of lectures provided by the teacher, that can be found in the university Moodle platform. 2. John G. Proakis, Masoud Salehi, “Communication Systems Engineering”, 2nd Edition, Prentice Hall, 2002.

Courses

• Ingegneria Elettronica (Corso di Laurea Magistrale (DM 270/04))