DIGITAL COMMUNICATIONS
Stampa
Anno immatricolazione
2020/2021
Anno offerta
2021/2022
Normativa
DM270
SSD
ING-INF/03 (TELECOMUNICAZIONI)
Dipartimento
DIPARTIMENTO DI INGEGNERIA INDUSTRIALE E DELL'INFORMAZIONE
Corso di studio
ELECTRONIC ENGINEERING
Curriculum
Microelectronics
Anno di corso
Periodo didattico
Secondo Semestre (07/03/2022 - 17/06/2022)
Crediti
6
Ore
50 ore di attività frontale
Lingua insegnamento
English
Tipo esame
ORALE
Docente
Prerequisiti
The course is aimed at students with a basic knowledge of electrical communication and signal theory
Obiettivi formativi
The student will learn some of the advanced techniques for digital transmission and coding of the information. Accordingly, he/she will be able to design the basic elements of a modern digital communication system, explaining the rational behind his/her choices.
Programma e contenuti
The course is for students with a basic knowledge of transmission techniques and is devoted to digital communications.

Course introductory notes.
Stochastic variables and processes

Information Theory: entropy.
Information Theory: source coding.
Channel capacity.

Coding techniques for information protection
Codes for error detection and correction
Algebraic codes
Convolutional codes, maximum likelihood decoding, Viterbi algorithm
Concatenated codes
Turbo codes
LDPC codes

Transmission on AWGN channels
Digital signals: PSD and power
Nyquist criterion to avoid intersymbol interference (ISI)
Optimum decoder
Upper and Lower bounds for BER values

Channels with fading
Fading definition and effects
Diversity techniques
Linear equalizers: Zero Forcing Equalizers
Linear equalizers: LMS, fractional and Decision Feedback equalizers. Introduction to ML equalizers.

Synchronization and syntonization
Frequency error estimates (open-loop and closed-loop)
Phase error estimates (open-loop and closed-loop)
Timing error estimates (open-loop and closed-loop)

OFDM modulation (introduction)
Metodi didattici
Lectures (hours/year in lecture theatre): 45
Practical classes (hours/year in lecture theatre): 0
Workshops (hours/year in the lab): 0

The concepts are introduced by means of lectures with slides integrated with explanation at the blackboard. Complementary topics are presented by means of one or two seminars by company representatives introducing examples of real digital communication systems.
Testi di riferimento
J.R. Barry, E.A. Lee, D.G. Messerschmitt. Digital Communication (third edition). Springer 2004
Modalità verifica apprendimento
Oral test, with questions aiming at understanding which are the concepts acquired by the student and his/her ability to explain how the functional blocks of digital systems work. The minimum score to pass the exam is 18, the top one is 30 cum laude.
Altre informazioni
Oral test, with questions aiming at understanding which are the concepts acquired by the student and his/her ability to explain how the functional blocks of digital systems work. The minimum score to pass the exam is 18, the top one is 30 cum laude.
Obiettivi Agenda 2030 per lo sviluppo sostenibile
GOAL 9: INDUSTRIES, INNOVATION AND INFRASTRUCTURE
Gli obiettivi