FUNDAMENTALS OF TELECOMMUNICATIONS

Academic Year 2023/2024 - Teacher: Sergio PALAZZO

Expected Learning Outcomes

The educational objectives of the Fundamentals of Telecommunications course are as follows:
1. Knowledge and understanding:
the student will learn the basic knowledge of analog and digital
techniques for the remote transmission of information and the fundamentals of telecommunication networks, in

particular the architecture and network protocols;

2. Applying knowledge and understanding:
the knowledge of an applicative nature, acquired through the
exercises and the laboratory, will concern the ability to design and configure telecommunications systems

starting from a knowledge and understanding of all the techniques that characterize the different phases of

signal processing and information management between source and destination; the student will acquire

problem solving and teamwork skills.

3. Making judgments:
the teaching will stimulate autonomy of judgment and evaluation of the conditions in
which to apply the techniques and tools for the design of the physical level that characterizes a

telecommunications system;

4. Communication skills:
the teaching is based on the use of a language specific to the studies relating to
telecommunication techniques and systems which will become the basis of the communication activity set up

by the student;

5. Learning skills:
learning skills will be stimulated by critical knowledge of the topics covered in the teaching,
made possible by attendance at lectures, laboratory activities and the study of reference texts.

Course Structure

The course, which consists of 89 hours of teaching, exercises and laboratory, is delivered in co-teaching (6 + 3
CFU). The 3 CFUs concern in particular section n. 9 of the program.

The teachers are also available for online reception meetings, by appointment.

Required Prerequisites

Signal Theory (Fourier Series, Modulation Theorem, Filters, Frequency Analysis, Sampling, Statistical Indices,
Probability Density Function)

Attendance of Lessons

The course does not have mandatory attendance, but it is strongly suggested for passing the written test.

Detailed Course Content

DETAILED COURSE CONTENT
1 Introduction

Organization of the course, the history of TLC, general description of a communication system, analog and

digital sources, transducers. Telephone signal features. Transducers. Definitions of bit-rate, SNR, BER, SER.

Performance parameters of a communication system. Audio frequencies, sound pressure, distribution of

telephone signal amplitude, loss of hearing sensitivity.

2 Communication channels

Ideal, perfect, linear and continuous, linear and non-permanent, non-linear channel. Harmonic distortion

coefficient. Equalization. Noisy channels. Frequency division multiplexing (FDM). Guard band. Emphasis and

de-emphasis filters. Exercises.

3 Information Theory

Measure of information and entropy. Discrete sources and examples. Source coding: codes properties, length

of a code, block coding, Gray, Shannon-Fano, Huffman codes. Exercises.

4 PCM and line coding

A/D conversion. Sampling. Uniform and non-uniform quantization. PCM, A and μ law. ITU-T and ETSI voice

coding standard. Transmission and regeneration of PCM signals over noisy channels. Main binary line codes.

Multilevel coding. Exercises and laboratory.

5 Channel coding

Block codes. Code rate. Coding delay. Linear and systematic code. Generator matrix. Repetition and disparity

code. Weight and Hamming distance. Decoding delay. Interleaver. Convolutional codes.

6 Noisy quadripoles

Equivalent noise bandwidth, equivalent noise temperature, noise figure. Exercises.

7 Modulation and transmission of analog signals

Amplitude modulation and demodulation: DSB, SSB, VSB and AM; angular modulation: FM and PM; effect of

noise; modulators and demodulators; modulation techniques comparison.

8 Baseband and passband digital transmission
Binary and M-ary PAM baseband transmission. Numerical modulation: ASK, FSK, PSK, QAM, OFDM.
Laboratory.

9. Telecommunication networks and systems

Network systems: General information on telecommunication networks and the Internet; network protocols and

services; layered architectures; multiplexing and switching techniques; circuit and packet switching; network

equipment and infrastructures; error and flow control; multiple access techniques (CSMA, CSMA/CD,

CSMA/CA, token passing) and their applications: Ethernet and WiFi; routing functions; congestion control;

main Internet protocols.

Textbook Information


[1] K. Sam, Shanmugam “Digital and Analog Communication Systems”, John Wiley & Sons.

[2] Couch Leon, “Fondamenti di Telecomunicazioni”, Apogeo Education, 2002.

[3] S. Haykin, M. Moher “Introduzione alle telecomunicazioni analogiche e digitali”, Casa Editrice Ambrosiana,

2007

[4] J. Kurose, K. Ross "Reti di calcolatori e Internet", Pearson

[5] Teachers' notes.

Learning Assessment

Learning Assessment Procedures


The exam consists of the presentation of a short essay on a topic agreed upon with the teacher and a subsequent oral test. The oral test consists of 2 or 3 questions on program topics.

To ensure equal opportunities and in compliance with current laws, interested students may request a personal interview in order to plan any compensatory and/or dispensatory measures based on educational objectives and specific needs. Students can also contact the CInAP (Centro per l’integrazione Attiva e Partecipata - Servizi per le Disabilità e/o i DSA) referring teacher within their department.

Examples of frequently asked questions and / or exercises

The questions cover all topics covered in class. The exercises assigned in the written tests mainly cover
sections No. 1, 2, 3, 4, 5 and 6.
VERSIONE IN ITALIANO