Lecturer: Prof. Dr.-Ing. Peter Jax

Contact:Stefan Kühl

Type: Bachelor lecture

Credits: 4

Lecture in RWTHonline
Exercise in RWTHonline
RWTHmoodle learning room
(Registration via RWTHonline)

Course language: German

Lecture notes and exercise problems in German language will be sold before the first lecture as well as by Irina Ronkartz.

All scripts and auxiliary sheets will also be available for download at the RWTHmoodle learning room.



from Friday, October 30, 2020
08:30 - 10:00


from Friday, October 30, 2020
10:15 - 11:00

Consultation hours:

Wednesday, July 14, 2021
10:15-11:15 a.m.

Wednesday, July 21, 2021
10:15-11:15 a.m.

Monday, July 26, 2021
14:00-15:00 p.m.

Monday, August 2, 2021


Thursday, August 5, 2021
The exam takes place as an online remote exam via Zoom. Please refer to the announcements in Moodle for more information.

Exam duration: 90 minutes

Remarks: The exam is in written form. The date corresponds also to the proof of achievements(Leistungsnachweise) in written form.

Resources: The exam is held with open books excluding programmable pocket calculators and communication devices.

Please note: Please bring along your student ID (BlueCard)!


Wednesday, September 15, 2021

The lecture "Kommunikationstechnik" is part of the Bachelor program "Elektrotechnik, Informationstechnik und Technische Informatik" in the 5th semester. The formal connection to the module catalogs can be found at RWTHonline


In this one term lecture theory and practice of digital transmission of information is discussed. After an introduction to information theory of sources and transmission channels the main elements of modern digital communication systems are discussed:

  • source coding
  • channel coding
  • modulation
  • multiplex and multiple access methods.

The goal of this lecture is to teach the basics of the individual parts as well as to give the system overview which is necessary for the understanding of complex transmission systems. Here, the information theoretical background, the principle bounds, and the interaction of the individual parts are of particular interest.

The practical application will be discussed with numerous examples, e.g.,

  • speech and channel coding in GSM/UMTS mobile radio network
  • data compression of the facsimile transmission
  • MPEG video coding
  • error correction in CD and DVD systems
  • transmission technology of the GSM/UMTS mobile radio network.

Particular topics can be examined at the laboratories "Communications Engineering" and "Real-Time Audio Processing" in experiments which are coordinated with this lecture. Furthermore this course is harmonized with the special lectures "Advanced Coding and Modulation", "Audio Signal Enhancement" and "Digital Speech Transmission" of the Master program.


The results of the evaluation of the last years are summarized below.

Winter term 2019/20

Participants of the evaluation: 28
Global grade: 1,2
Concept of the lecture: 1,3
Instruction and behaviour: 1,2

Participatns of the evaluation: 28
Global grade: 1,6
Concept of the exercise: 1,5
Instruction and behaviour: 1,7