2014/2015

2016/2017

DM270

ING-INF/03 (TELECOMMUNICATIONS)

DEPARTMENT OF ELECTRICAL,COMPUTER AND BIOMEDICAL ENGINEERING

ELECTRONIC AND COMPUTER ENGINEERING

INFORMATICA

3°

2nd semester (01/03/2017 - 09/06/2017)

6

50 lesson hours

Italian

WRITTEN AND ORAL TEST

FAVALLI LORENZO (titolare) - 9 ECTS

Signal theory, miodulations, protocols

Give students the knowledge to understand problems and technical solutions to operate a communication system. Impact of the environment and of the service type on the preferrable solution. Description of the main commercial systems wirth reference to the studied techniques.

Characterization of cabled systems. Propagation phenomena and how to design efficient transmission techniques to couteract tx imparments. Transmission over radio channels. Attenuation, multipath, fading, doppler effect, crosstalk.

Review of transmission techniques (analog and digital) analog to digital conversion, transmission of baseband digital data: robustness to noise and bandidth efficiency.
Introduction to traffic theory for performance characterization and and system planning. Kendall's notation, Little's result, transition matrix and state probabilities for Markiv systems, birth death processes, examples.
Circuit switched networks: space, time and hybrid circuit switched nodes. Minimization of crosspoints. Blocking probability. Signalling, in-band, out-of band, common channel. Multiplexing in circuit switched networks frequency (FDM), time (TDM) and code (CDM). Duplexing. Sample systems: PDH (alignement, justification), SDH (justigication), WDM, OVSF codes.
Packet switched networks. The data Link Layer: line management, link configuration, packet extraction, error control (FEC and ARQ). Sample protocols: HDLC, PPP.
Distributed multiplexing in packet networks: Aloha, Slotted-Aloha, CSMA/*, Token passing.
Local packet based systems. Wired and Wireless Local Arean Networks (LAN) in the IEEE 802 set of standards. Short range and sensor networks.
Wide area packet networks. Historical perspective, Frame relay and ATM networks. Quality of service concepts. Evolution and convergence to IP based networks.
Mobile radio systems. Network architecture, sample operational procedures. Evolution (2G, 3G, 4G).
Coding and transmission of digital video. Fundamentals of compression techniques, network architectures for video distribution (DVB, CDN).

Theory and exercises in class.

A. Pattavina, "Reti di Telecomunicazioni." McGrawHill
J. Kurose, K. Ross, "Reti di Calcolatori e Internet, un approcco top-down." Pearson
O. Bertazioli, L. Favalli, "GSM-GPRS:" Hoepli

Exam is composed by a written and an oral test.