Communication Systems


Lectures Dates

  • In the summer semester 2020 the module "Communication Systems" will be organized as an online lecture via moodle. To participate you have to register for the course in moodle.
  • First online lecture: Friday, April 24, 2020 at 14.15 h


We are using the Moodle e-learning system, especially to keep in touch with students. So if you attend this lecture, please register here as soon as possible:


Then you will get all important information about the lecture via email and/or the Moodle system.


Communication systems play a major role in the modern society. Since the 1990ies especially wireless communications is of increasing interest worldwide. For the definition of such systems lots of aspects need to be taken into consideration. Among others, frequency band allocation, efficient use of radio and network resources, number of sites required to provide radio coverage, targeted user service characteristics like maximum bit rate and quality and last but not least cost of implementation.

After a short presentation of the wireless communications history, the characteristics of the terrestrial mobile radio channel are introduced.

This is followed by a discussion of the key components of wireless communication systems. Specifically, aspects such as the digital tranmsission over the mobile radio channel, multiplexing and multiple access, etc. are covered.

In the next chapter, we discuss and compare the mobile communication standards GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications Standard), and LTE (Long Term Evolution). A special focus is on the lower layer specifications for these systems. For UMTS we discuss spread spectrum systems and for LTE we give an introduction to OFDM.

Finally we have a brief look to market figures and discuss actual developements of wireless communication systems.


  1. Goldsmith, Andrea: Wireless Communication Systems, Cambridge University Press 2005
  2. Tse, Viswanath: Fundamentals of Wireless Communication, Cambridge University Press, 2005
  3. Bossert, Martin: Channel Coding for Telecommunications, John Wiley & Sons, 1999
  4. Lindner, Jürgen: Informationsübertragung: Grundlagen der Kommunikationstechnik, Springer-Verlag 2005
  5. Eberspächer, Vögel, Bettstetter: GSM, Global System for Mobile Communication, Teubner, 2001
  6. Khan, Farooq: LTE for 4G Mobile Broadband: Air Interface Technologies and Performance, Cambridge University Press 2009
  7. Holma, Toskala: WCDMA for UMTS, Wiley, 2006
  8. Holma, Toskala: HSDPA/HSUPA for UMTS. High Speed Radio Access for Mobile Communications, John Wiley & Sons, 2006
  9. Holma, Toskala: WCDMA for UMTS - HSPA Evolution and LTE, John Wiley & Sons, 2007
  10. Holma, Toskala: LTE for UMTS - OFDMA and SC-FDMA Based Radio Access, John Wiley & Sons, 2009
  11. Holma, Toskala: LTE for UMTS - Evolution to LTE Advanced, John Wiley & Sons, 2011
  12. Chris Johnson, Long Term Evolution in Bullets, 2nd edition, 2012,


Lecture Slides

Copies of the slides can be obtained from the Fachschaft Elektrotechnik:


Summer Semester 2020

Lecture: Friday, 14:15 - 15:45
Exercise: Friday, 16:00 - 17:30






Usually oral exam, otherwise written exam of 120 minutes duration.