Modern Network Technologies
FEKT-NMOSAcad. year: 2019/2020
The course makes the students familiar with recent trends in the fields of modern network technologies especially from the viewpoint of control algorithms and mechanisms implemented into communication protocols. The first part of the course provides sufficient mathematical background from queuing theory. It is followed by a detailed analysis of flow-control methods on the data link layer of the OSI/ISO Reference Model. The next part of the lectures is oriented to the control mechanisms implemented in the TCP transport protocol. The last part deals with the topics of Quality of Service support, from basic principles up to implementation details in mobile and wireless networks.
Learning outcomes of the course unit
After completing the course, students will have a detailed theoretical and practical overview of flow-control mechanisms on different levels of the OSI/ISO Reference Model. Additionally, they will have formed an overall view of the way quality-of-service support mechanisms used in fixed, wireless and mobile communication networks.
The subject knowledge on the Bachelor´s degree level is requested.
Recommended optional programme components
Recommended or required reading
STALLINGS, W. High-speed networks and internet Performance and Quality of Service, Prentice Hall, 2002
3GPP 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; IP Multimedia Subsystem (IMS); Stage 2, Release 7, 3GPP, 23.228, V7.9.0, 2007
IEEE Std 802.11e Information technology - Telecommunications and information exchange between systems - Local and metropolitan area network - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements, IEEE, 2005
Planned learning activities and teaching methods
Techning methods include lectures, computer laboratories and practical laboratories. Course is taking advantage of e-learning (Moodle) system.
Assesment methods and criteria linked to learning outcomes
For work during the course, it is possible to get up to 100 points. Elaborating 10 protocols up to 30 points can be gained during the laboratory exercises. The course is finished by taking a written exam, for which up to 70 points can be obtained.
Language of instruction
1) Queuing theory - mathematical repsentation, random processes
2) Queuing theory - Markovian system of queue control
3) Queuing theory - qualitative parameters of queuing systems
4) Flow-control - congestion control and congestion avoidance
5) Flow-control - flow-control and error correction on data link layer errors
6) Protocol TCP - flow control in TCP
7) Protocol TCP - congestion avoidance in TCP
8) Quality of Service - basic requirements, IntServ, DiffServ
9) Quality of Service - marking, classification, metering, packet scheduling
10) Quality of Service - active queue management, DiffServ domain
11) Quality of Service support in wireless networks (802.11e)
12) Quality of Service support in mobile networks (IMS)
The aim of the course is to introduce new principles and methods implemented in modern network technologies. The course is oriented mainly to different aspects of Quality of Service support in packet networks.
Specification of controlled education, way of implementation and compensation for absences
Attendance at laboratory exercises is compulsory, justified absence in a laboratory exercise can be made up during the credit week after prior arrangement with the instructor.