Quality of Service in Communications (ST 2021)

Quality-of-Service of Communication Systems

Lecture and exercise will be offered as online course via StudOn this semester. You can find the corresponding link below.


Type of Course Lecture (2 SWS) + Exercise (2 SWS)
ECTS Credits 2,5 + 2,5
Language English


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