440-2216/01 – Quality of Service (QoS)

Gurantor departmentDepartment of TelecommunicationsCredits4
Subject guarantorprof. Ing. Miroslav Vozňák, Ph.D.Subject version guarantorprof. Ing. Miroslav Vozňák, Ph.D.
Study levelundergraduate or graduateRequirementChoice-compulsory type A
Year2Semesterwinter
Study languageCzech
Year of introduction2021/2022Year of cancellation
Intended for the facultiesFEIIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
LAU0021 Ing. Filip Lauterbach
ROZ132 Ing. Jan Rozhon, Ph.D.
VAN0200 Ing. Michal Vaněk
VOZ29 prof. Ing. Miroslav Vozňák, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2
Part-time Credit and Examination 4+10

Subject aims expressed by acquired skills and competences

The subject Quality of services aims to introduce students to the issues of evaluation, definition, modeling and enforcement of quality parameters of multimedia services in networks based on the IP protocol implemented both using traditional technologies and software-defined networks.

Teaching methods

Lectures
Tutorials
Experimental work in labs

Summary

The course introduces students to the principles and methods for evaluating, determining and modeling quality parameters in IP networks, both from the point of view of the network (QoS) and from the point of view of the end user (QoE). Students verify the acquired knowledge using software models of traditional and software-defined networks.

Compulsory literature:

[1] Zukerman M. Introduction to Queueing Theory and Stochastic Teletraffic Models. ArXiv:1307.2968, 2022. URL: https://arxiv.org/abs/1307.2968. [2] Vozňák M. Voice over IP: Speech Quality and Related Issues. Gazi Academic Publishing, 2017. ISBN 9786053444794. [3] Mehic M., Rass S., Fazio P., and Vozňák, M. Quantum Key Distribution Networks: A Quality of Service Perspective. Springer, 2022. ISBN 9783031066085. [4] Goransson P. Software Defined Networks: A Comprehensive Approach 2nd Edition". Morgan Kaufmann, 2nd ed., 2016. ISBN 9780128045794.

Recommended literature:

[1] Chen Y., Wu K., and Zhang Q. From QoS to QoE: A Tutorial on Video Quality Assessment. IEEE Communications Surveys & Tutorials, vol. 17, no. 2, 2015, pp. 1126-1165. URL: https://ieeexplore.ieee.org/document/6933929. [2] Jelassi S., Rubino G., Melvin H., Youssef H., and Pujolle G. Quality of Experience of VoIP Service: A Survey of Assessment Approaches and Open Issues. IEEE Communications Surveys & Tutorials, vol. 14, no. 2, 2012, pp. 491-513. URL: https://ieeexplore.ieee.org/document/6129367. [3] Raake A., and Möller S. Quality of Experience: Advanced Concepts, Applications and Methods. Springer, 2014. ISBN 978-3-319-02680-0. , URL: https://link.springer.com/book/10.1007/978-3-031-06608-5 [4] Bhat, U. N. "An Introduction to Queueing Theory: Modeling and Analysis in Applications (Statistics for Industry and Technology)", 2nd ed., Birkhauser, 2015. [5] Baiocchi A. Network Traffic Engineering: Stochastic Models and Applications. New York: Wiley, 2020. ISBN 978-1119632436.

Way of continuous check of knowledge in the course of semester

Five scored tasks from the discussed issue Individual tasks (40 points in total), each for 8 points: 1/ Simulation of network traffic, scored task, T4 2/ Determining the MOS of a call in a mobile network, scored task, T6 3/ Evaluation of video quality, scored task, T8 4/ Basic tasks in SDN with the Mininet tool, scored task, T10 5/ SDN controller, advanced SDN simulations, scored task, T12 Knowledge is verified by a test in the exam.

E-learning

https://lms.vsb.cz

Other requirements

The course assumes students' basic knowledge of programming (Python language) and operating systems.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Information theory, information entropy, coding, noisy and noiseless channel, channel capacity. 2. Kendall's classification of queueuing systems, general notation and solution of basic models. 3. QoS vs QoE and approaches to achieving QoS. 4. Models of network traffic and their use in determining qualitative parameters of transmission in IP networks. 5. Methods of evaluating the quality of multimedia services I. 6. Methods of evaluating the quality of multimedia services II. 7. Evaluation of the quality of the Internet access service (ČTÚ - invited lecture) 8. Network modeling in software tools 9. Concept of SDN networks and their use. 10. Quality of service in SDN networks - I. 11. Quality of services in SDN networks - II . 12. Quality of services in SDN networks - III. 13. QoS in quantum communication infrastructure.

Conditions for subject completion

Part-time form (validity from: 2022/2023 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of pointsMax. počet pokusů
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 40  15
        Examination Examination 60  20 3
Mandatory attendence participation: There are no requirements on compulsory attendance.

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Conditions for subject completion and attendance at the exercises within ISP: Completion of all mandatory tasks within individually agreed deadlines

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Occurrence in study plans

Academic yearProgrammeBranch/spec.Spec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2024/2025 (B0714A060023) Communication and Information Technology KIT P Czech Ostrava 2 Compulsory study plan
2024/2025 (B0714A060023) Communication and Information Technology KIT K Czech Ostrava 2 Compulsory study plan
2023/2024 (B0714A060023) Communication and Information Technology KS P Czech Ostrava 2 Choice-compulsory type A study plan
2023/2024 (B0714A060023) Communication and Information Technology KS K Czech Ostrava 2 Choice-compulsory type A study plan
2022/2023 (B0714A060023) Communication and Information Technology KS K Czech Ostrava 2 Choice-compulsory type A study plan
2022/2023 (B0714A060023) Communication and Information Technology KS P Czech Ostrava 2 Choice-compulsory type A study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner

Assessment of instruction



2023/2024 Winter