Course detail

Theory of Communication

FEKT-MTSDAcad. year: 2011/2012

Communication systems, basic terms focused on digital modulations. Classification of modulating techniques. Base-band discrete coded modulations. Signal patterns for digital data representation. Intersymbol interference and its reduction. Discrete modulations with harmonic carrier. Main parameters and geometric representation of modulated signals. BFSK, BPSK, D-BPSK, MPSK, QPSK, D-QPSK, O-QPSK, p/4 - QPSK modulations. CPM (CPFSK, MSK, GMSK). M-QAM techniques. Modulating formats with multiple carriers MCM, orthogonal frequency multiplex OFDM. Techniques of reconstruction of reference carrier and time raster for digital modulations.

Language of instruction

Czech

Number of ECTS credits

7

Mode of study

Not applicable.

Guarantor

Ing. Radim Číž, Ph.D.

Department

Department of Telecommunications (UTKO)

Learning outcomes of the course unit

Knowledge of principles and typical applications of modern techniques of transmission of the communication and data signals.

Prerequisites

The subject knowledge on the Bachelor´s degree level is requested.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Requirements for completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every.

Course curriculum

Signals in communication systems (continuous, discrete). Basic waveform representation of binary digits. Line codes.
Digital communication system. Mediums for data transfer.
Noise in communication systems. Receiving of disturbed signal.
Amplitude and frequency modulations and keyings.
Phase modulation and keying. Problems of BPSK data transfer.
Reducing of intersymbol interference (ISI). Synchronization. Scrambling.
Equalizers. Modern discrete modulations with harmonic carrier (QPSK, 8PSK, OK-QPSK, MSK, FFSK, GMSK, pi/4-DQPSK, MQAM).
Digital representation of analog signal. Quantization.
Pulse modulations (PAM, PDM, PPM, PWM, PCM, DPCM, DM, SDM).
Multiplexing and multiple access. OFDM.
Modulations in optoelectronics. Effect of the noise in passband.
Systems of digital subscriber lines (xDSL).
Introduction to the information theory. Trellis coding.

Work placements

Not applicable.

Aims

To elaborate actual and to acquire more of the knowledge about the current modern methods of transmission of communication and data signals in base-band and radio-channels.

Specification of controlled education, way of implementation and compensation for absences

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Not applicable.

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-M Master's

    branch M-TIT , 1. year of study, winter semester, compulsory

  • Programme EEKR-CZV lifelong learning

    branch ET-CZV , 1. year of study, winter semester, compulsory

Type of course unit

 

Lecture

39 hours, optionally

Teacher / Lecturer

Ing. Radim Číž, Ph.D.

Syllabus

Basic terms of the theory of communication and data transmission.
Communication systems focused on digital modulations. Classification of modulating techniques.
Base-band discrete coded modulations.
Signal formats for digital data representation. Intersymbol interference (ISI) and its reduction.
Digital data filtering. SNR maximization.
Two-stage and more-stage discrete modulations with harmonic carriers.
Geometric representation of modulated signals. Main groups of digital modulations.
BFSK, BPSK, D-BPSK modulations.
MPSK, QPSK, D-QPSK, O-QPSK, pi/4 - QPSK modulations.
CPM (CPFSK, MSK, GMSK) modulation. M-QAM modulations.
Modulating formats with multiple carriers MCM, orthogonal frequency multiplex OFDM.
Techniques of reconstruction of reference carrier and time raster for digital modulations.
Techniques of signal visualization for discrete modulations. Comparison of the individual techniques.

Fundamentals seminar

13 hours, compulsory

Teacher / Lecturer

Ing. Radim Číž, Ph.D.

Syllabus

Transmission and modulating rate. Signals and their spectrum.
PCM, DPCM, DM.
Formats of digital signals. Their parameters in the time and frequency domains.
ASK, BFSK, DPSK.
Test (10 points). Shift keying I.
Shift keying II.

Exercise in computer lab

13 hours, optionally

Teacher / Lecturer

Ing. Radim Číž, Ph.D.

Syllabus

Base-band data transmission.
BPSK.
QPSK.
MSK and GMSK.
Data communication bz means of modem.
Testing and credit hour.

Laboratory exercise

13 hours, compulsory

Teacher / Lecturer

Ing. Radim Číž, Ph.D.
Ing. Ľubomír Mráz
Ing. Ján Zátyik

Syllabus

Base-band data transmission.
BPSK.
QPSK.
MSK and GMSK.
Data communication bz means of modem.
Testing and credit hour.