Communication Systems

Higher education teachers: Levstek Andrej

Subject description

Prerequisits:

• Enrolment in semester.

Content (Syllabus outline):

• Fundamentals of communication: information, communication channel. Redundancy and irrelevance of information signals.
• Random signals and noise: probability, random variable, probability density function; stochastic process, autocorrelation, power density spectrum.
• Properties of common information signals: sound signals, video, data.
• Digital transmission of analogue signals: sampling, quantization, coding; reconstruction, origins of signal degradation.
• Physical transmission media: wireless medium, optical fibre, transmission line. Fundamentals of lossy transmission lines: attenuation, dispersion. Wave phenomena on short lines.
• Wired transmission of analogue signals: equalization, noise accumulation.
• Baseband pulse signaling: line codes, intersymbol interference, bit error rate.
• Bandpass signaling: continuous wave modulations. Linear and angle modulation schemes, principles of modulation and demodulation, superheterodyne receiver.
• Digital signal modulations: OOK, FSK, PSK, QAM.

Objectives and competences:

Basics of information signal transmission for electronic engineers. Proper selection of communication requirements based on theoretical concepts and existing solutions.

Intended learning outcomes:

• Students should :Understand basic concepts of communications
• Know requirements of real-time transmission of analog signals
• Be familiar with logarithmic units (dB, dBm, dBV) that are common in recommendations and specifications
• Understand basic constraints of physical signal transmission

Learning and teaching methods:

• Lectures,
• tutorial,
• homework.

Study materials

Readings:

• S. Tomažič, Osnove telekomunikacij I, Založba FE in FRI, Ljubljana 2002
• S. Haykin, Communication systems, 4th edition, John Wiley, New York 2001
• L. W. Couch, Digital and analog communication systems, Prentice-Hall, New Jersey 2001