Scheda insegnamento


L'insegnamento contribuisce al perseguimento degli Obiettivi di Sviluppo Sostenibile dell'Agenda 2030 dell'ONU.

Istruzione di qualità Parità di genere Imprese innovazione e infrastrutture

Anno Accademico 2020/2021

Conoscenze e abilità da conseguire

Acquisition of skills in fundamental mathematical models and methodologies for performance evaluation and dimensioning of communication networks, and related applications to network design. Knowledge of main network models, quality of service mechanisms, control and management techniques and protocols for traffic and service engineering in evolving and emerging network scenarios, with applications to practical case studies.


Part I - Introduction to queuing theory

  1. Review of main network transfer modes: circuit, packet, cell switching. Deterministic and statistical multiplexing. Identification of performance evaluation and design aspects

  2. Methods to represent and evaluate network systems: analysis simulation and measurement

  3. Traffic theory: basic concepts and definitions

  4. Poisson process as arrival process: arrival probability, inter-arrival time, residual time

  5. Bernoulli process as arrival process: inter-arrival time

  6. Discrete-time Markov Chains

  7. Continuous-time Markov Chains

  8. Birth/Death Markov processes

  9. Queuing systems, Kendall's notation

  10. Little's formula

  11. Pure loss Systems, Erlang B

  12. Ideal waiting systems, Erlang C

  13. M/M/1 queue case study and applications

Part II - Application examples of network design

  1. Routing and forwarding in the Internet

  2. Router architectures and queuing techniques

  3. Discrete-time input and output queueing

  4. Application examples of network design

  5. Simple TCP modeling


Part I

L. Kleinrock, 'Queuing systems, part I', Wiley editions.

Part II

J. F. Kurose, K. W. Ross, ' Computer Networking, a Top-Down Approach', Fifth ed. Pearson.

L. Peterson, B. Davie, "Computer networks: a system approach", Elsevier, Morgan Kaufmann

M. Hassan, R. Jain, High Performance TCP/IP Networking, Concepts, Issues and Solutions, Pearson, Prentice Hall, 2004.

Metodi didattici

Theoretical lectures and numerical exercises.

Exercises on practical daily situations.

Modalità di verifica dell'apprendimento

Written exercise to test the ability to solve new design problems by applications of the methodologies explained in the course.

The oral exam will immediately follow the written part and will check the ability of the student to elaborate the demonstrations of the theorems and to explain motivations and reasoning in support of network design methodologies. 

The highest scores, and especially summa cum laude, will require, in addition to correctness, appropriate reporting and good speech organization. Lower grades are scaled down in relation to some inaccuracy in esposition and uncompleteness. Minimum score is not granted in the presence of severe lack even of a single topic.

Strumenti a supporto della didattica

Slides prepared by the teacher available on Unibo iol platform.

Some tests are proposed during the course using the iol platform.

Link ad altre eventuali informazioni


Orario di ricevimento

Consulta il sito web di Carla Raffaelli