Università degli Studi di Roma "Tor Vergata"

Program:

The course will be focused on the main concepts and techniques of electromagnetic fields.

Fundamental topics are listed below.

1. Definitions of electric and magnetic field. Maxwell's equations.
2. Energy balance and Poynting's theorem.
3. Fields in the frequency domain. Complex notations. Polarization of a vector. Parameters of polarization.
4. Maxwell equations in the frequency domain. Energy balance in the frequency domain.
5. Propagation of waves. Plane waves in uniform means. Propagation constant and intrinsic impedance.
7. Reflection and refraction of a plane wave for normal incidence. Oblique incidence.
8. Transmission lines, Guided propagation. Coaxial cables, rectangular waveguides.
9. The electromagnetic radiation. The electromagnetic field of an impulsive source. Radiated field at a great distance. General antenna parameters. Radiation diagram. Directivity and gain. Antennas for reception. Equivalent area. Link between equivalent area and directivity. Transmission between antennas.

Further details will be given before the beginning of the course.

S.E. Schwarz, "Electromagnetics for Engineers", Oxford University Press.

The course is organized in the following main areas:
1) basic cryptography and network security: attacks, countermeasures, security services, basic cryptographic constructions (stream ciphers, block ciphers and modes, hash functions, Merkle-Damgard Construction, NMAC and HMAC, pseudo random functions, key management, public key algorithms, digital signatures, etc);
2) authentication and network protocol support: basics, PPP PAP and CHAP and relevant extensions, one time passwords, EAP, authentication in 3G, RADIUS and relevant vulnerabilities; DIAMETER, Public Key Infrastructure;
3) in-depth analysis of TLS and IPsec: basics, handshake, key management with RSA, anonymous/fixed/ephemeral Diffie-Hellman and integration in TLS; TLS record; MAC and encryption composition (and vulnerabilities);
attacks to TLS with CBC (BEAST); attacks to TLS messaging (padding oracle, side channel attacks); attacks to TLS compression (CRIME), attacks to TLS session integrity (truncation attack), attacks to TLS handshake (renegotiation attack); key derivation hierarchy and PRFs, KDFs; comparative analysis with IPsec, VPN with IPsec, IKE.
4) advanced cryptographic approaches: trivial secret sharing, Shamir' secret sharing, commitments and verificable secret sharing (Feldman, Pedersen); Secure Multiparty Computation based on secret sharing; Pedersen's distributed key generation; linear secret sharing and access control matrices; threshold cryptography; threshold signatures and issues with threshold RSA (why Shoup's construction); basics of elliptic curve cryptography; ECDH; ECDSA; bilinear maps (pairing based cryptography) and example constructions (Joux 3-way DH, Boneh/Franklin Identity Based Encryption, brief hints to Attribute Based Encryption).
5) miscellaneous topics: TESLA, Merkel Trees and their applications, further topics may be optionally addressed in dedicated talks by invited experts, depending on the year (touching selected aspects of system security, intrusion detection and network protection, security certification, etc).

Testi suggeriti:
a) Nadjid Nakhjini, Mahsa Nakhjini “AAA and Network Security for Mobile Access”, Wiley, 2005
b) Stephen Thomas, “SSL and TLS Essentials”, Wiley, 2000
c) William Stallings, “Cryptography and Network Security: Principles and Practice”
d) Alfred J. Menezes, Paul C. van Oorschot and Scott A. Vanstone, ''Handbook of applied cryptography'', available online at
http://www.cacr.math.uwaterloo.ca/hac/

Segnali determinati tempo continuo
Introduzione. Sistemi e servizi di telecomunicazioni. Definizione di segnali in senso stretto, trasmissione ideale di un segnale, segnali nel dominio del tempo. Operazioni elementari. Classificazione di segnali. Impulso ideale di Dirac. Energia e potenza dei segnali a tempo continuo, cenni su segnali a tempo discreto. Affinità tra segnali, affinità tra segnali di energia e tra segnali di potenza. Rappresentazioni di segnali in serie temporali e nello spazio dei segnali. Ortogonalizzazione di Gram-Schmidt. Trasformazioni lineari di segnali tempo continui, trasformata di Fourier e sue proprietà. Affinità tra segnali di energia rappresentati in frequenza, spettri di energia e di potenza, estensione spettrale dei segnali reali, spettri discreti di segnali periodici. Teorema del campionamento nel dominio della frequenza e del tempo. Rappresentazioni complesse di segnali tempo continui, inviluppo complesso. Elementi sui segnali di sorgente, segnali analogici o numerici, segnali sonori, segnali di immagine, elementi sui segnali numerici di sorgente, segnali multilivello di sorgente, segnali numerici sincroni e asincroni. Trasformazioni lineari fra segnali tempo continui, considerazioni sulla natura elettrica dei segnali, trasformazioni LTI nei bipoli e nei quadripoli, risposte nei domini del tempo e della frequenza, trasferimento in condizione di adattamento, quadripolo ideale e quadripoli perfetti. Fondamenti di trasmissione, trasmissione ideale, condizioni per il trasporto ideale della informazione, sistemi di trasmissione perfetti, mezzi trasmissivi perfetti, canali lineari perfetti. Elaborazione lineare di segnali tempo continuo senza e con taglio di banda, elementi sui filtri. Elaborazione di segnali a gradini e reversibilità, elaborazione non lineare su segnali a gradini, restituzione della forma a gradini, elaborazione complessiva con taglio di banda, elaborazione complessiva con riduzione della banda pratica. Multiplazione, cenni sulla conversione analogico numerica, cenni di codifica di canale, cenni di modulazione armonica.
Variabili e processi aleatori tempo continuo
Cenni di teoria della probabilità. Variabili aleatorie, funzioni di distribuzione e di densità di probabilità, distribuzioni condizionate di probabilità. Momenti di una variabile aleatoria, funzione caratteristica e funzione generatrice di una v.a. Funzioni di variabile aleatoria, Calcolo della funzione di distribuzione, Calcolo della funzione di densità di probabilità, Sequenze di variabili aleatorie, Trasformazioni di variabili aleatorie, Indipendenza di variabili aleatorie, Medie, varianze e covarianze, Funzioni di densità condizionali, Funzione caratteristica, Variabili aleatorie complesse.
Cenni di teoria dei processi stocastici, Concetti generali, Grandezze che caratterizzano un processo stocastico, Proprietà di un processo stocastico, Momenti di un processo stocastico, Processi stocastici tempo discreto, Classificazione dei processi stocastici, Cenni di teoria spettrale dei processi stocastici, Trasformazioni di processi stocastici, il processo Gaussiano.
Generalità sui processi stocastici, segnali aleatori e loro sorgenti, caratterizzazione dei processi continui, processi continui stazionari, intercorrelazione nei processi stazionari, processo somma e processo complesso, processi discreti reali stazionari, processi stocastici ciclostazionari, processi ciclostazionari di primo e secondo ordine, processi rappresentati tramite inviluppo complesso, processo stazionario non in banda base, processi rappresentati tramite serie temporali, processi reali con fattori aleatori, processi campionati in banda base, processi complessi con fattori aleatori, processo somma di processi reali con fattori aleatori, processi continui gaussiani: il rumore, rumore gaussiano stazionario non in banda base, rumore gaussiano bianco nello spazio dei segnali, processi di Markov, proprietà dei processi di Markov, processi di Markov a tempo discreto, processi di Markov a tempo continuo.

Trasmissione imperfetta
Connessione imperfetta, Effetto inatteso additivo in uscita, Trasmissione imperfetta con canale lineare tempo variante, Trasmissione imperfetta in un canale lineare tempo invariante, Trasmissione imperfetta con canale non lineare.
Trasmissione imperfetta con disturbi indipendenti. Generalità sui disturbi indipendenti. Riduzione degli effetti dei disturbi indipendenti. Rumore gaussiano additivo di sistema.
Analisi in potenza e frequenza di un sistema di trasmissione. Singolo quadripolo. Analisi in potenza della cascata di quadripoli lineari rumorosi. Quadripoli lineari rumorosi. Analisi in potenza della cascata di quadripoli lineari rumorosi. Sensitività del ricevitore.
Segnali utilizzati nei sistemi di trasmissione
Modulazione di segnali armonici. Schemi generali del trasmettitore e del ricevitore per segnali armonici modulati. Modulazione armonica con modulante analogico. Modulazioni di ampiezza (AM). Modulazioni di angolo: fase (PM) e frequenza (FM). Analisi delle prestazioni dei sistemi di modulazione armonica con segnali analogici Prestazioni dei sistemi AM. Rapporto segnale-rumore per i sistemi PM e FM .

Laboratorio di segnali
Introduzione a Matlab e suo utilizzo per rappresentare graficamente i segnali. Esecuzione di operazioni tra segnali (anche periodici), studio delle proprietà dei segnali (quali energia o potenza) e correlazioni.

Dispense a cure del Docente

Content
Classification of network: LAN vs WAN, data networks vs. circuit networks. Network topologies, services and functions. Layering of networks functions: the OSI model. Multiplexing and switching. Packet switching vs. Circuit switching. Local Area Networks, the Ethernet technology. The TCP/IP model and architecture. Main protocols of TCP/IP suite: ARP, PPP, IP, ICMP, IGMP, UDP, TCP, DNS, HTTP. IP routing. IP addressing and private networks. IPv4 and IPv6. IP mobility (brief overview).
Performance evaluation of networks. Basic queueing models for packet networks and circuit networks.

texts will be communicated by the teacher

Discrete-time signals and systems; The sampling process; Discrete-time Fourier transform (DTFT); Z-transform; Discrete Fourier Series (DFS); Discrete Fourier Transform (DFT); Introduction to Processing; Finite and Long Processing; DFT-based Processing; Fast Fourier Transform (FFT); Introduction to Digital Filters: FIR and IIR classification; Structures, design and implementation of IIR filters; Structures, design and implementation of FIR filters; Analysis of finite word length effects; DSP system design and applications; Discrete-time random signals; Spectral Density estimation. VLAB: Design examples and applications of IIR filters; Design examples and applications of FIR filters; Matlab-based lab and exercises.

Testo teoria: The River Publishers’ Series in Signal, Image & Speech Processing, "An Introduction to Digital Signal Processing: A Focus on Implementation". Prof. Stanley Henry Mneney. River Publishers, ISBN: 978-87-92329-12-7.

Testo esercitazioni: "Digital Signal Processing Exercises and Applications", Prof. Marina Ruggieri, Prof. Michele Luglio, Dr. Marco Pratesi. Aracne Editirice, ISBN: 88-7999-907-9.

Breve storia delle comunicazioni satellitari. Principali caratteristiche delle costellazioni orbitali più usate (GEO, LEO, MEO, HEO): caratteristiche geometriche dei collegamenti, effetti del ritardo di propagazione. Canale di propagazione: propagazione troposferica (modello ITU) e principali contromisure, cenni ai principali modelli di propagazione per canali mobili, diversità di satellite. Cenni sulle problematiche di strato fisico: modulazione, codifica, interallacciamento, copertura multifascio, interferenza cocanale, rigenerazione a bordo. Allocazioni dello spettro per sistemi satellitari. Dimensionamento. Organismi di standardizzazione e regolamentazione. Accesso multiplo: tecniche classiche di accesso multiplo ad assegnazione fissa (FDMA, TDMA, CDMA), tecniche ad accesso casuale, tecniche di assegnazione su domanda e a prenotazione di pacchetto. Handover. Cenni sullo standard DVB-S e DVB-S2. Architetture per la diffusione di programmi televisivi. Cenni sul DAB. Carico utile di comunicazione: funzioni e schemi di principio. Apparati di bordo. Aspetti di rete: architetture e prestazioni di sistemi con interfaccia IP. Incapsulamento di flussi IP su DVB. Prestazioni di TCP/IP via satellite, tecniche PEP. Sistemi basati su standard DVB/IP e DVB RCS. Sicurezza di rete. Qualità del servizio. Il segmento di terra ed i relativi apparati. Funzionalità del NCC. Applicazioni e servizi: servizi mobili e fissi, servizi multimediali. Procedure di controllo della chiamata, handover e call set up. Integrazione con sistemi terrestri. Handover in sistemi integrati. Analisi di mercato, principali modelli previsionali di costi di sviluppo e di penetrazione di mercato. cenni sulla componente satellitare dell’UMTS. Progettazione di una rete di telecomunicazioni satellitari mediante i principali sistemi già operativi o in via di realizzazione.

Dispense a cura del Docente

Navigation and radio facilities. Satellite Navigation; structure of a GNSS (space segment, control, user) and its performance (accuracy, continuity, availability, integrity); sources of error, dilution of precision (DOP parameters); the receiver. GNSS existing and on development (GPS, Galileo, GLONASS, Beidou ....). Integrity monitoring & Augmentation (DGPS, LAAS, WAAS, GBAS). Location of the mobile terminal on the cellular network and other methods of tracking. Air traffic control and related surveillance systems (PSR, SSR, MLAT-WAM, ADS-B). Traffic control of airport (SMGCS and sensors: SMR, ADS-B, local MLAT).Marine traffic control (VTS, VTMS, coastal radar, AIS).

Avionics Navigation Systems, 2nd Edition, John Wiley & Sons
Myron Kayton, Walter R. Fried

Understanding GPS: Principles and Applications, Second Edition 2nd Edition, Artech House
Elliott D. Kaplan (Author, Editor), Christopher Hegarty (Editor)

SISTEMI DI RILEVAMENTO E NAVIGAZIONE – TexMat Libreria Universitaria
G. Galati, M. Leonardi

Lecture Slides

Internet model building: model development methods of Internet platform and services. Internet workload characterization: methods to model and characterize the Internet software workloads and traffic. Internet model evaluation: methods for the efficiency, availability and reliability prediction of Internet platforms and services in the design and implementation phases. Internet model-driven QoS management: QoS definition of Internet platforms and services and their QoS dynamic management. Tools for Model building and evaluation: experimentation of model-development and model-use tools for the study of Internet platform and services.

1. G.Iazeolla___Performance of Internet Platforms and Services___Franco Angeli 2017

2. M.Sadiku & S.Musa___Performance Analysis of Computer Networks___Springer 2013.

Wireless Sensor Network: concetto di sensore intelligente, ottimizzazione dei consumi di potenza, acceso multiplo nelle WSNs, standards per comunicazioni a corto raggio e con bassi consumi di potenza (es. ZibBee, Bluetooth etc.);
Smart Grid: dalla rete tradizionale alle smart grid; concetto di prosumer, microgrid, demand-side-management, virtual plant, AMR e AMI, veicoli eletrici e contetto di V2G e G2V, OFDM e powerline communications.
Intellingent Transport System: requisiti dei servizi ITS, tecnologie di comunicazione a disposizione, standard DSRC, canali con doppia selettivita’, standard IEEE802.11p.
Wireless Body Area Networks: requisiti di servizi ICT legati alla medicina, caratteristiche canale di comunicazione nelle varie applicazioni, tecnologia UWB, standard IEEE 802.15.6.

Dispense del Docente

FIRST PART: GUIDED PROPAGATION Transmission lines: Equivalent circuit, basic equations, stationary waves, Smith Chart, 1 stub and 2 stub matching techniques. Guides: General properties of TEM, TE and TM waves.
SECOND PART: FREE SPACE PROPAGATION Terrain effects: Reflection, Surface wave. The edge and mirror problems, Multiple edges. Propagation in urban areas: Wall effects. Large scale atmospheric refraction: Refraction index properties, Electromagnetic path bending, the duct problem, Effects on space links. Small scale atmospheric refraction. Elements of theory of perturbation. Application to troposcatter links. Scintillation. Molecular absorption in clear atmosphere: Water vapour and oxigen effects. Hydrometeors effects: Definitions of cross sections, Mie and Rayleigh approximations, attenuation due to clouds and fog, attenuation and crosspolarizatioon due to rain. Ionospheric propagation: Theory of ionospheric propagation, ionospheric reflection in terrestrial links, ionospheric effects in space links, the Faraday effect. The noise: Basic definitions, elements of emission theory, emission from sky, atmosphere, land, men made sources. Influence of propagation on systems: Fixed terrestrial links, space links, mobile links, radar systems.

S.R. Saunders, "Antennas and Propagation for Wireless Communication Systems", John Wiley and sons.

Clutter and anticlutter devices. Weather radar. Synthetic Aperture Radar (SAR), radar tracking (monopulse technique), tracking by radar - TWS.Radar

Radar System Analysis and Modeling, Artech House Radar Library
David K Barton

Radar Handbook, Third Edition, McGrawHill
Merrill Skolnik

SISTEMI RADAR – TexMat Libreria Universitaria
G. Galati, M. Leonardi

Lecture Slides

The ICT market: market structure and regulatory issues; Demand analysis: Demand function; Elasticity; LOGIT and PROBIT models; Cournot and Bertrand models; Optimal pricing decisions under monopoly and competition; Auctions: First and second price auctions; reverse auctions; Forecasting techniques: Taxonomy; Regression techniques (linear, exponential and sigmoidal models) and exponential smoothing techniques (simple and double); Economic analysis of investments: Costs and their classification; Net Present Value and Internal Rate of Return; Risk treatment; Real options and their application in ICT: Call and put options; Black and Scholes formula; Binomial model.

1) Brealey, R. A., Myers, S. C., Allen, F., & Mohanty, P. (2013). Principles of corporate finance. McGraw-Hill Education. (ISBN 978-0077151560)
2) Maillé, P., & Tuffin, B. (2014). Telecommunication network economics: from theory to applications. Cambridge University Press. (ISBN 9781107782938

Information Theory: random variables and processes, the concept of information, self-information, Shannon entropy, alternative entropy measures, relative entropies, Kullback–Leibler divergence, Jensen–Shannon divergence, conditional entropy, joint entropy, mutual information, total correlation, differential entropy, Markov chains. Applications to Communications Systems: coding of discrete sources, first Shannon theorem, Kraft inequality, Huffman coding, discrete communication channels, channel capacity, error probability, Fano inequality, second Shannon theorem, elements of channel coding and cryptography. Applications to Data Mining: basic concept of data mining, definition of dataset and attribute, data types, multivariate analysis, basic statistical description of data, case studies, information theoretic metrics in data mining tasks, data preparation, data cleaning, discretization of attributes, dimensionality reduction, association rules (unidimensional and multidimensional), classification algorithms (ID3, C4.5, Bayes), classification trees, anomaly detection, clustering, training and testing of algorithms, data visualization. Computer experiments: introduction to Matlab, applications of information theory to communications systems, applications of data mining algorithms.

TESTI:
E. Cianca, M. De Sanctis, M. Ruggieri- “Information and Coding: theory overview, Design, Applications and Exercises”, ARACNE Editrice, 2007;
M. J. Zaki, W. Meira, “Data Mining and Analysis - Fundamental Concepts and Algorithms”, Cambridge University Press, 2014.

Plan:
Basic Graph Theory
Fundamental (easy) Optimization Problems on Graphs: Maximum Spanning Trees, Maximum Flow, Shortest Paths
Linear Programming (LP) and Duality
Algorithms for LP: Simplex methods & Interior point Methods
Applications of Linear programming to the minimum cost flow problem
Integer Linear Programming (ILP)
Algorithms for ILP: Cutting Planes Methods and Branch & Bound Techniques
Fundamental (hard) Optimization Problems on Graphs: Steiner Tree Problem; Integer Multicommodity Flows

Textbooks:
Lecture notes from the instructors + publicly available textbooks

Lecture notes from the instructors + publicly available textbooks

Plan:
Basic Graph Theory
Fundamental (easy) Optimization Problems on Graphs: Maximum Spanning Trees, Maximum Flow, Shortest Paths
Linear Programming (LP) and Duality
Algorithms for LP: Simplex methods & Interior point Methods
Applications of Linear programming to the minimum cost flow problem
Integer Linear Programming (ILP)
Algorithms for ILP: Cutting Planes Methods and Branch & Bound Techniques
Fundamental (hard) Optimization Problems on Graphs: Steiner Tree Problem; Integer Multicommodity Flows

Textbooks:
Lecture notes from the instructors + publicly available textbooks

Lecture notes from the instructors + publicly available textbooks

Obiettivi:

Presentare allo studente i nuovi paradigmi di rete emersi negli ultimi anni con particolare riferimento a soluzioni distribuite per il controllo del trasferimento dell'informazione in rete. Il corso sara' principalmente incentrato sull'analisi delle soluzioni piu' significative per

i) la realizzazione di interconnessioni di rete a qualita' del servizio garantita (IP QoS e Routing);

ii) la realizzazione di reti private per aziende ed enti distribuiti sul territorio (Virtual Private Network);

Il corso affrontera' aspetti algoritmici, protocollari, tecnologici e prestazionali.
Circa un terzo del corso e' dedicato ad esercitazioni di laboratorio basate su OS Linux e Cisco, in cui lo studente mette in pratica sul proprio laptop la teoria trattata.

Programma:
Qualita' del servizio su Rete IP (teoria + laboratorio)

Routing (teoria + laboratorio)

Virtual Private Networks IPSec e TLS (teoria + laboratorio)

Virtual Private Networks BGP/MPLS (teoria + laboratorio)

Testi adottati:
Dispense distribuite in aula con riferimenti a documenti di pubblico dominio WEB

The course is organized in the following main areas:
1) basic cryptography and network security: attacks, countermeasures, security services, basic cryptographic constructions (stream ciphers, block ciphers and modes, hash functions, Merkle-Damgard Construction, NMAC and HMAC, pseudo random functions, key management, public key algorithms, digital signatures, etc);
2) authentication and network protocol support: basics, PPP PAP and CHAP and relevant extensions, one time passwords, EAP, authentication in 3G, RADIUS and relevant vulnerabilities; DIAMETER, Public Key Infrastructure;
3) in-depth analysis of TLS and IPsec: basics, handshake, key management with RSA, anonymous/fixed/ephemeral Diffie-Hellman and integration in TLS; TLS record; MAC and encryption composition (and vulnerabilities);
attacks to TLS with CBC (BEAST); attacks to TLS messaging (padding oracle, side channel attacks); attacks to TLS compression (CRIME), attacks to TLS session integrity (truncation attack), attacks to TLS handshake (renegotiation attack); key derivation hierarchy and PRFs, KDFs; comparative analysis with IPsec, VPN with IPsec, IKE.
4) advanced cryptographic approaches: trivial secret sharing, Shamir' secret sharing, commitments and verificable secret sharing (Feldman, Pedersen); Secure Multiparty Computation based on secret sharing; Pedersen's distributed key generation; linear secret sharing and access control matrices; threshold cryptography; threshold signatures and issues with threshold RSA (why Shoup's construction); basics of elliptic curve cryptography; ECDH; ECDSA; bilinear maps (pairing based cryptography) and example constructions (Joux 3-way DH, Boneh/Franklin Identity Based Encryption, brief hints to Attribute Based Encryption).
5) miscellaneous topics: TESLA, Merkel Trees and their applications, further topics may be optionally addressed in dedicated talks by invited experts, depending on the year (touching selected aspects of system security, intrusion detection and network protection, security certification, etc).

Testi suggeriti:
a) Nadjid Nakhjini, Mahsa Nakhjini “AAA and Network Security for Mobile Access”, Wiley, 2005
b) Stephen Thomas, “SSL and TLS Essentials”, Wiley, 2000
c) William Stallings, “Cryptography and Network Security: Principles and Practice”
d) Alfred J. Menezes, Paul C. van Oorschot and Scott A. Vanstone, ''Handbook of applied cryptography'', available online at
http://www.cacr.math.uwaterloo.ca/hac/

Guided propagation. General aspects of guided propagation. TEM, TE, and TM waves. Coaxial liness. Rectangular waveguides. Circular waveguides. Conformal mapping techniques. Analysis of coupled lines and striplines. Microstrips in low frequency and high frequency approximations. Resonators. Fundations of resonant circuits. Rectangular cavities. Circular cavities. Microwave circuits. Properties of Z and S matrices. Excitation of waveguides. Equivalent currents. Application to studying probe to waveguide coupling, cavity to wavegude coupling, and waveguide to waveguide coupling. Matching by impedance tranformation. Quarter wave transformers. Multisection transformers. Passive microwave devices. Reciprocal devices: terminations, attenuators, phase shifters, directional couplers, Hybrid T junctions. Non reciprocal devices: isolators, circulators.

R.E. Collin, "Foundations for Microwave Engineering", McGraw-Hill International Editions (Electrical Engineering Series).

Special Optical Fibres: Plastic Optical Fibres (POF), Photonic Crystals, Photonic crystals optical fibres. Optical Amplifiers: Fundamentals on optical amplification, 3-levels systems; 2-levels systems, Optical Gain. Gain Saturation, Noise in optical amplifiers (ASE, Amplified Spontaneous Emission), EDFA (Erbium Doper Fiber Amplifier), SOA (Semiconductor Optical Amplifier), Distributed optical amplification. RAMAN Amplifier. Birefringence and polarization dispersion: Birefringence, Differential Group Delay, PMD (Polarization Mode Dispersion), Jones matrix, Polarization representation in the Stokes space, Stokes vector and Poincaré sphere, Müller matrix, Principal States of Polarization, PMD Dynamical Equation, PMD statistics, Effects of the PMD on the performance of IM-DD optical communication systems, Measure techniques for PMD, PMF (Polarization Maintaining Fibres). Optical fibre propagation in non-linear regime: Non-linear Schrödinger Equation, SPM (Self-Phase Modulation), FWM (Four-Wave-Mixing), XPM (Cross-Phase Modulation),Solitons. Coherent Optical Communication Systems: Coherent optical systems: homodyne and heterodyne receivers, Demodulation techniques: coherent, differential, envelope, Balanced optical receiver. Phase-quadrature optical receiver. Polarization diversity optical receiver, Phase mo/demodulation techniques (PSK, DPSK), Amplitude mo/demodulation techniques (ASK - envelope demodulation), Frequency mo/demodulation techniques (FSK, CPFSK), Polarization mo/demodulation techniques (PolSK, ASPSK), Multilevel coherent optical systems (M-PSK, QPSK, QAM, N-SPSK, N-4QSK). Capacity of the optical fibre communication channel: Capacity of the optical channel in linear regime, Capacity of the optical channel in non-linear regime.

Dispense del Docente

The local simulation  paradigm; The distributed simulation paradigm; Locally and geographically distributed simulation; Middleware for distributed; simulation: HLA and SimArch; Design and development in Java+HLA; Design and development in SimArch; Amdhal’s law in distributed simulation; Speedup analysis; Distributed simulation in-the-loop.

Dispense distribuite dal Docente

Introduction to image and video compression; Quantization; Differential and Transform Coding; Variable-length Coding; Run-length and Dictionary Coding; Still Image Compression: JPEG and JPEG2000; Motion Estimation and Compensation; Video Coding Standards: MPEG-1/2, MPEG 4, H.261, H.263, H.264/AVC; A brief history of the TV; Digital TV Systems; The MPEG Data Stream; Laboratory on real satellite TV decoder; Satellite Broadcasting – Internet via Satellite; Traffic shaping in satellite broadcast; New Web technologies for broadband systems; IP Multimedia Subsystem (IMS); IPTV Functional architecture; Multicast Algorithms; Project work.

Dispense del Docente “Reti e tecnologie broadcast”

Introduction to image and video compression; Quantization; Differential and Transform Coding; Variable-length Coding; Run-length and Dictionary Coding; Still Image Compression: JPEG and JPEG2000; Motion Estimation and Compensation; Video Coding Standards: MPEG-1/2, MPEG 4, H.261, H.263, H.264/AVC; A brief history of the TV; Digital TV Systems; The MPEG Data Stream; Laboratory on real satellite TV decoder; Satellite Broadcasting – Internet via Satellite; Traffic shaping in satellite broadcast; New Web technologies for broadband systems; IP Multimedia Subsystem (IMS); IPTV Functional architecture; Multicast Algorithms; Project work.

Dispense del Docente “Reti e tecnologie broadcast”

Introduction to cloud computing. Virtualization. Distributed Storage. Virtual Lan. SDN, Open Flow and OpenVSwitch. OpenStack. Data Center Networking. Cloud API.

Dispense del corso