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Telecomunicazioni
Telecommunications
Franco Chiaraluce

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

Prerequisites
The Course requires the knowledge of the basic concepts of mathematical analysis and signal theory.

Learning outcomes
KNOWLEDGE AND UNDERSTANDING:
To know and understand the techniques for information transmission in a generic communication system, both analog and digital, and its protection against noise and disturbances, in such a way as to guarantee link reliability. To be able to measure the amount of information generated by an information source and the means to represent it by physical signals.
CAPACITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
The student shall be able to interpret correctly the main elements of a communication system, both analog and digital, and to measure the amount of information and the transmission quality. The basic skills so acquired will provide the student with a series of vocational skills, such as: 1. the ability to identify the problems appearing in the design of a TLC system; 2. the ability to convert an analog signal into a digital signal, in an efficient way, and to measure the amount of information relative to the message transmission; 3. the ability to propose suitable solutions to the problems identified; 4. the ability to compare the performance obtainable by using the various possible solutions, identifying the most convenient ones on the basis of existing constraints and prefixed requirements.
TRANSVERSAL SKILLS:
The characterization of a communication system requires different skills: from the information theory to the signal theory, from electronics to informatics. The student shall exploit fruitfully the knowledge acquired in other courses, harmonizing the contents in a unitary vision. At the same time, the course provides basic elements for subsequent courses, more specialized and application oriented. Through the solution of numerical examples, the student will deepen his own ability to analyze critically the results obtained and to solve problems. The capacity to present properly the work done will also stimulated and checked.

Program
Contents (Frontal lectures, 64 hours) - AWGN channel. - Analog modulations. - Quantization. - Information sources and source coding. - Representation of digital signals. - Demodulation and quality in digital transmissions over the AWGN channel. - Spread spectrum techniques. - Outline of channel coding. Classroom exercises (8 hours) - Numerical exercises on the main topics of the course.

Development of the examination
LEARNING EVALUATION METHODS
The evaluation of the learning level is organized in two tests: - A written test, consisting in the solution of one numerical exercise, to be completed in approximately one hour (the exact time is determined by the difficulty level established for the exercise). - An oral test, consisting in the discussion of two or more topics of the course and the critical review of possible mistakes made in the written test. In the written test the student must face a problem of analysis or design for one or more parts of a telecommunication system, by employing the methods, models and maths tools presented in the classes. In the oral test, the student is asked to discuss the techniques for transmission in a telecommunication system and the procedures for measuring, representing and protecting information from superposed disturbances. The written test is propaedeutic to the oral test, in the sense that the student is admitted to the oral test only if he has received a sufficient evaluation in the written test. The oral test should be stood, preferably, in the same session of the written test. Deviations from this rule are possible, but must be agreed with the teacher before starting the written test. In case of negative evaluation of the oral test, the student can decide to retain the result of the written test or to repeat it in the subsequent sessions. The chosen option must be communicated to the teacher before starting the new exam session the student wishes to attend.

LEARNING EVALUATION CRITERIA
Learning evaluation is based on the verification, through the tests, that the student has acquired a sufficient level of understanding and a suitable capacity of employing the topics presented throughout the course, as regards both the theoretical foundations and their application in telecommunication systems.

LEARNING MEASUREMENT CRITERIA
During the exam tests, the teacher evaluates the capacity of the student to analyze properly the basic elements of a telecommunication system and to propose effective solutions to the problems emerged, by using the tools and methods presented during the classes. For the written test, the teacher assigns a mark that, as a function of the quality of the paper, can be: not sufficient, sufficient, fair, good, very good, excellent. The student is non admitted to the oral test if his mark is not sufficient. Any positive mark (sufficent or more), by which the student has been admitted to the oral test, permits the student to reach the maximum final mark (thirty, cum laude if applicable) if he is able to demonstrate that the gaps shown in the written test do not correspond to real deficiencies in the preparation. The final mark, in thirtieths, is the result of the global evluation on the oral and written tests

FINAL MARK ALLOCATION CRITERIA
In order to pass the exam, the student must reach at least a sufficient mark in the written test and show an adequate preparation in the oral test. The maximum mark is reached by showing a deep knowledge of the course topics throughout the tests. Laude is reserved to those students who are particularly brilliant in the oral test, even able to compensate in an excellent way possible gaps emerged in the written test.

Recommended reading
- Esercitazioni numeriche sugli argomenti principali del corso. 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 Triennale (DM 270/04))