Transmission Systems

Higher education teachers: Tomažič Sašo
Credits: 6
Semester: winter
Subject code: 64222

Subject description

Content (Syllabus outline):

  • The basic model of digital transmission. Basic concepts of information theory (probability, information, random variables, information sources, entropy, redundancy). Lossless source coding (elimination of redundancy). Loosely source coding (elimination of irrelevance). Information channel. Binary symmetric channel. Gaussian channel. Mutual entropy and information channel capacity. Channel coding. Error detecting and error correcting codes.. Examples of channel coding (uncoded transmission, block codes, convolution codes, trellis diagram). Maximum likelihood decoding. Viterbi algorithm.
  • Baseband transmission. Linear distortion and intersymbol interference (ISI). Nyquist criterion for ISI free transmission. Adaptive equalization and ISI cancellation. Spectrum of baseband signals and spectral efficiency.
  • Transmission of signals in the higher frequency bands. Digital modulation (amplitude, phase, and frequency modulation). Examples of digital modulation (PAM, FSK, PSK, DPSK, CPM, MSK, GMSK, QAM). Spread spectrum. Multiple access to a common transmission medium.

Objectives and competences:

The course provides basic knowledge in the field of the transmission of information signals, which is the basis of all modern communication systems. The purpose of the course is to acquaint the future engineers with the theoretical basics of efficient and reliable transmission of digital signals through the non-ideal communication channel. The theory provides a useful basis for the subjects in the second degree of the study. In addition to the theoretical foundations an overview of existing solutions is given, which gives the students a basic understanding of the existing communication systems faced in their everyday life.

Learning and teaching methods:

Lectures, tutorials and lab.

Study materials


  1. Tomažič, S., Osnove telekomunikacij I, Založba FE in FRI, Ljubljana 2002, ISBN 961-6210-97-1
  2. Haykin, S., Communication systems, 4th edition, John Wiley & Sons, New York, 2001, 816 str. ISBN 0-471-17869-1
  3. Glover, I., Grant, P., Digital communications, Prentice Hall, London 1998, 734 str., ISBN 0-13- 565391-6

Study in which the course is carried out

  • 1 year - 2nd cycle - Electrical Engineering - Electronics