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Trasmissioni Numeriche
Digital Transmissions
Franco Chiaraluce

Seat Ingegneria
A.A. 2015/2016
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
Know and understand the modern techniques of digital transmission, with an approach that emphasizes the need for mathematical rigor but which nonetheless preserves its most intuitive aspects.

Program
- 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. - Vitebi'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 the physical layer security. - Jamming channels. - Trellis code modulation. - Multi-carrier digital modulations. - Use of Simulink for simulating communication 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.

LEARNING EVALUATION CRITERIA
In order to pass the exam, 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 score will be 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
In order to pass the exam, 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 score will be reached by demonstrating to have a deep and thorough knowledge of the topics, and a complete control of the technical and formal language.

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 score 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 score, demonstrate a thorough knowledge of the subjects. In assigning the final score, the teacher also takes account student's participation to software exercises developed during the course, with certified attendance through signatures collection. In any case, proof of attendance of the software exercises will not compensate a negative evaluation of the oral test, but will eventually contribute to improve the positive evaluation.

Recommended reading
1. Dispense a cura del Docente. 2. John G. Proakis, Masoud Salehi, “Communication Systems Engineering”, 2nd Edition, Prentice Hall, 2002. 3. H. Nguyen, E. Shwedyk, ”A first Course in Digital Communications”, Cambridge University Press, New York, 2009.

Courses

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