OVERVIEW

The importance of quality of service is parallel with the recent evolution of telecommunication networks, which are characterized by a great heterogeneity. Even if the Quality of Service is the object of a great number of studies, questions to answer are: does QoS fit within heterogeneous networks? Which is the impact on the performance if information traverses different network portions that use specific QoS paradigms? These questions and corresponding possible answers are the core of the teaching unit.

AIMS AND CONTENT

LEARNING OUTCOMES

The students at the end of the lectures will have acquired theoretical and practical knowledge about modern architectures for telecommunications networks, about applications, and about their control. The aim is to understand different technological solutions and algorithms to control and design interworking elements within a network. The students will acquire the necessary know-how to design and manage advanced interworking technology, understand main protocols at application layer, and investigate technological challenges, still object of research both industrial and academic, as well as quality of service provision over heterogeneous networks, satellite, space, and interplanetary networks.

AIMS AND LEARNING OUTCOMES

The students at the end of the lectures will have acquired the skills to:

• to analyze modern architectures for telecommunications networks and their control;
• to select different technological solutions and algorithms to control and design interworking elements within a network;
• to design and manage advanced interworking technology and protocols;
• to investigate technological challenges, still object of research both industrial and academic, about quality of service provision over heterogeneous networks, satellite, space, and interplanetary networks.

TEACHING METHODS

Lectures integrated by possible laboratory trials, aimed at acquiring theoretical and practical knowledge about modern architectures for telecommunications networks, about applications, and about their control.

SYLLABUS/CONTENT

Definition of QoS, SLA (Service Level Agreement) and SLS (Service Level Specification).

Definition of heterogeneity.

QoS-oriented technologies: ATM, MPLS, IPv4, IPv6, user flow and traffic class identification.

Integrated Services, Differentiated Services and DSCP Assignation, advantages and drawbacks.

Network control issues versus time: Traffic Identification, Traffic Shaping, introduction to Scheduling, CAC (Feasibility Region, Equivalent Bandwidth, Bandwidth Reservation), QoS Routing.

QoS over Heterogeneous Networks: concepts and problems, Horizontal and Vertical QoS Mapping,  QoS Architectures, QoS Gateway, Relay Node and Relay Layer.

Software Defined Networking (SDN): introduction and aim, architecture, OpenFlow and Flow Table, conclusions and research activities.

Delay Tolerant Networking (DTN): introduction and aim, architecture, Bundle Layer, CLA, conclusions and research activities.

The lectures, dealing with topics of scientific-technological interest such as the QoS over Heterogeneous Networks contribute to the achievement of the following Sustainable Development Goals of the UN 2030 Agenda:

8.2 (Achieving higher standards of economic productivity through diversification, technological progress and innovation, also with particular attention to high added value and labor intensive sectors)

9.5 (Increase scientific research, improve the technological capabilities of the industrial sector in all states - especially in developing countries - as well as encourage innovations and substantially increase, by 2030, the number of employees for every million people, in the research and development sector and expenditure on research – both public and private – and on development)

RECOMMENDED READING/BIBLIOGRAPHY

- Mario Marchese , QoS Over Heterogeneous Networks , Wiley & Sons , Chichester , UK , 2007.
- Notes on specific topics issued by the lecturer.
- Extracts of international regulatory and scientific documentation provided by the lecturer.
- Recordings of the lectures of previous years still available on Teams.

- The slides used for each single lecture are made available on Aulaweb.

Students with disabilities or learning disorders can use specific modalities and supports that will be determined on a case-by-case basis in agreement with the Delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities, as indicated in Further Information section.

Students not following lectures may use the recommended reading material listed above and can ask the lecturer additional indications.

TEACHERS AND EXAM BOARD

LESSONS

LESSONS START

https://corsi.unige.it/10378/p/studenti-orario

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

The exam consists of a written test consisting of 4 questions of identical value followed by a brief oral comment on the writing test.

Students with learning disorders will be allowed to use specific modalities and supports that will be determined on a case-by-case basis in agreement with the delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities, as better specified in the Further Information section.

ASSESSMENT METHODS

The written test is aimed at checking the skills of the students about their skills:

• to analyze modern architectures for telecommunications networks and their control;
• to select different technological solutions and algorithms to control and design interworking elements within a network;
• to design and manage advanced interworking technology and protocols;
• to investigate technological challenges, still object of research both industrial and academic, about quality of service provision over heterogeneous networks, satellite, space, and interplanetary networks.

concerning:

1. technical knowledge,
2. methodology,
3. clarity of the description.

Students with learning disorders ("disturbi specifici di apprendimento", DSA) will be allowed to use specific modalities and supports that will be determined on a case-by-case basis in agreement with the delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities.

FURTHER INFORMATION

Students with valid certifications for Specific Learning Disorders (SLDs), disabilities or other educational needs are invited to contact the teacher and the School's contact person for disability at the beginning of teaching to agree on possible teaching arrangements that, while respecting the teaching objectives, take into account individual learning patterns. Contacts of the School's disability contact person can be found at the following link Comitato di Ateneo per l’inclusione delle studentesse e degli studenti con disabilità o con DSA | UniGe | Università di Genova