Quality of Service in Communications (SS 2022)

Quality-of-Service of Communication Systems

Lecture and exercises will be offered as presence courses. On request, the lecture can also be streamed via Zoom. In addition, videos of the previous year’s lecture are available on StudOn.


Type of Course Lecture (2 SWS) + Exercise (2 SWS)
ECTS Credits 2,5 + 2,5
Language English
Lecture Monday, 16:15 – 17:45, Room H7 UnivIS
Exercises Tuesday, 14:15 – 15:45, Room 01.153-113 CIP UnivIS
Tuesday, 16:15 – 17:45, Room 01.153-113 CIP


We introduce the term quality-of-service (QoS), discuss important approaches to achieve certain degrees of QoS, and show how the implementation in computer networks. Then a number of methodologies to assess and design systems with respect to their QoS:

  • network planning and optimization,

  • network simulation,

  • stochastic analysis (Markov chains, non-Markovian models, queuing systems),

  • deterministic analysis with network calculus to determine QoS guarantees

  • measurements (hardware, software, and hybrid monitoring, benchmarks).

All methods are illustrated by examples.


Kurose, Ross. Computer Networking: A Top-Down Approach Featuring the Internet. 6th Ed., Addison Wesley, 2013

W. Stallings. Data and Computer Communications, 10th ed., Pearson Education, 2014

W. Stallings. Foundations of Modern Networking: SDN, NFV, QoE, IoT, and Cloud, Pearson Education, 2016