Università degli Studi di Napoli "Parthenope"

Teaching schedule

Academic year: 
2016/2017
Belonging course: 
Course of Bachelor's Degree Programme on COMPUTER SCIENCE, BIOMEDICAL AND TELECOMMUNICATIONS ENGINEERING
Disciplinary sector: 
TELECOMMUNICATIONS (ING-INF/03)
Language: 
Italian
Credits: 
9
Year of study: 
3
Teachers: 
Cycle: 
First Semester
Hours of front activity: 
72

Language

Italian

Course description

*) Knowledge and understanding: the student has to prove its knowledge about the theoretic principles of random processes, modulations and TLC networks.
*) Applying knowledge and understanding: the student should be able to analyse and design different modulation schemes, both numerical and analogical.
*) Making judgements: the student should be able to critically analyse the performances and the critical points of a data transmission system.
*) Communication: the student should be able to clearly express the technical concepts and correctly user the scientific language.
*) Learning skills: the student should be able to update the acquired knowledge by using different sources, and to achieve a deeper knowledge of the field, being able to follow master courses within the telecommunication sector.

Prerequisites

It is needed to learn from the courses “Teoria dei segnali” and “Teoria dei Fenomeni Aleatori” the following knowledge:
- basic concepts ofprobability and random variables;
- fundamental concepts of signal analysis, in particular by using the Fourier transform
(direct and inverse).

Syllabus

RANDOM PROCESSES (26 hours)
Random Processes(r.a.). R.a. classification. R. a. first order, second order and complete statistical description. Mean, variance, squared mean. Auto and cross correlation function. Auto and cross covariance function. Correlation and covariance functions properties. Synthetical statistical description. SSS and SSL r.a. Cyclostationary processes, Gaussian processes. Independent, orthogonal and uncorrelated random processes. IID processes proprerties. Bernoulli processes. Convergence. Temporal mean of r.a. Power of r.a. Ergodicity conditions, Ergodicity theorem. Power spectreal density. Einstein-Wiener-Khinchin theorem. AWG noise. Termic noise. Noise figure. Noise equivalent temperature. Cascade systems. Hilbert transform. Passband signals and systems. Hilbert transform properties. Noise and passband processes.

ANALOGICAL MODULATIONS (12 hours)
Linear modulations (DSB, AM, SSB, VSB). Angular modulations (FM, PM). Noise in the Linear modulations. Bandwidth of angular modulated signals. Narrow band m odulation. SNR in the andular modulation. Pre-emphasis and De-emphasis.

NUMERICAL MODULATIONS (30 hours)
Source coding. First Shannon’s theorem. Uniform and not-uniform scalar quantization. Channel coding. Second Shannon’s theorem. Numerical transmissions over AWGN. Signals geometrical rappresentation. Base band transmission (PAM, PPM, PDM). Optimal receiver. Correlation based demodulator. Mathced filter demodulator. Optimal detection criteria: MAP and ML. Memoryless signals demodulation and detection. Error probability. Regenerative repeater. Power spectrum of a PLM signal. ISI. Pass band transmissions. ASK, FSK, PSK, CPM. Spectral Efficiency. Error probability computation. Comparison between different modulation schemes.

FOUNDATIONS OF COMPUTER AND TLC NETWORK (4 hours)
PSTN and internet, ISO/OSI standard, Physical, Data Link, Net and Transport layers. TCP/IP, ATM, wireless network standards, routing, network security.

RANDOM PROCESSES (26 hours)
Random Processes(r.a.). R.a. classification. R. a. first order, second order and complete statistical description. Mean, variance, squared mean. Auto and cross correlation function. Auto and cross covariance function. Correlation and covariance functions properties. Synthetical statistical description. SSS and SSL r.a. Cyclostationary processes, Gaussian processes. Independent, orthogonal and uncorrelated random processes. IID processes proprerties. Bernoulli processes. Convergence. Temporal mean of r.a. Power of r.a. Ergodicity conditions, Ergodicity theorem. Power spectreal density. Einstein-Wiener-Khinchin theorem. AWG noise. Termic noise. Noise figure. Noise equivalent temperature. Cascade systems. Hilbert transform. Passband signals and systems. Hilbert transform properties. Noise and passband processes.

ANALOGICAL MODULATIONS (12 hours)
Linear modulations (DSB, AM, SSB, VSB). Angular modulations (FM, PM). Noise in the Linear modulations. Bandwidth of angular modulated signals. Narrow band m odulation. SNR in the andular modulation. Pre-emphasis and De-emphasis.

NUMERICAL MODULATIONS (30 hours)
Source coding. First Shannon’s theorem. Uniform and not-uniform scalar quantization. Channel coding. Second Shannon’s theorem. Numerical transmissions over AWGN. Signals geometrical rappresentation. Base band transmission (PAM, PPM, PDM). Optimal receiver. Correlation based demodulator. Mathced filter demodulator. Optimal detection criteria: MAP and ML. Memoryless signals demodulation and detection. Error probability. Regenerative repeater. Power spectrum of a PLM signal. ISI. Pass band transmissions. ASK, FSK, PSK, CPM. Spectral Efficiency. Error probability computation. Comparison between different modulation schemes.

FOUNDATIONS OF COMPUTER AND TLC NETWORK (4 hours)
PSTN and internet, ISO/OSI standard, Physical, Data Link, Net and Transport layers. TCP/IP, ATM, wireless network standards, routing, network security.

Teaching Methods

The course is divided into frontal lessons and excercises..

Textbooks

1) A. Leon-Garcia, Probability and Random Processes for Electrical Engineering, Addison-Wesley, 2nd edition, 1994.
2) J. G. Proakis, M. Salehi, Communication Systems Engineering, Prentice Hall, 1994.
3) A. S. Tanenbaum, , David J. Wetherall, Reti di calcolatori, 5a Edizione, Pearson, 2011.
4) online matherial.

Learning assessment

The examination aims at verifying the achievement of the previously
stated educational targets. The examination is divided in an oral and a written test.
The written test has the aim of evaluating the student capacity of develop and analyse different modulation strategies by using the techniques studied during the lessons; the minimal score to pass the test is 14 of 30; students have 2 hours to complete the test.
The oral exam is intended for evaluating the student ability in linking an analysing the different topics studied during the course; the minimal score to pass the test is 18 of 30.
The final grade is a weighted mean of the two scores. The weight applied to the written test is 1/3, while it is 2/3 in case of the oral one. In case the global grade is below 18, the student has to repeat the two tests.

More information

The teaching material is available on the site "www.edi.uniparthenope.it".