Course detail

Wireless Communication Theory

FEKT-NTRKAcad. year: 2011/2012

Radio communication system, radio communication signals, complex envelope, Channel capacity, information theory, Intersymbol interferences, signal shaping, receiver filter, Detection of radio communication signals, hypothesis testing, AWGN channel, PSK, BPSK, DPSK, QPSK, OQPSK, MQAM, MSK, GMSK, CPM - modulation, demodulation, applications, Spread spectrum systems I - DSSS, FHSS, spreading sequences, Spread spectrum systems I - rake receiver, synchronization, Communication channel characteristics, equalizers, nonlinear channels, UWB communications, OFDM - principle, modulation using IFFT, cyclic prefix and orthogonality, Synchronization and equalization, MB-OFDM and MC-CDMA systems, Block and convolutional codes, cyclic codes, turbo codes, concatenated codes, MIMO systems, space time coding, TCM

Language of instruction

English

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

prof. Ing. Roman Maršálek, Ph.D.

Department

Department of Radio Electronics (UREL)

Offered to foreign students

Of all faculties

Learning outcomes of the course unit

The students become thoroughly familiar with the wireless communication channel, its structure and properties, detection of the noisy signals, inter symbol interference, fading channel characteristics, phase keying, carrier recovery, clock recovery and modulation techniques QAM, OFDM and CDMA.

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

Lectures:

1. Radio communication system, radio communication signals, complex envelope
2. Channel capacity, information theory
3. Intersymbol interferences, signal shaping, receiver filter
4. Detection of radio communication signals, hypothesis testing, AWGN channel
5. PSK, BPSK, DPSK, QPSK, OQPSK
6. MQAM, MSK, GMSK, CPM - modulation, demodulation, applications
7. Spread spectrum systems I - DSSS, FHSS, spreading sequences
8. Spread spectrum systems I - rake receiver, synchronization
9. Communication channel characteristics, equalizers, nonlinear channels, UWB communications
10. OFDM - principle, modulation using IFFT, cyclic prefix and orthogonality
11. Synchronization and equalization, MB-OFDM and MC-CDMA systems
12. Block and convolutional codes, cyclic codes, turbo codes, concatenated codes
13. MIMO systems, space time coding, TCM

Computer experiment:

1. Complex envelope
2. ISI
3. Optimal receiver
4. Synchronization
5. CDMA
6. OFDM - principle
7. Radio channel
8. RF chain
9. OFDM II - influnce of RF parameters
10. UWB principles
11. Coding
12. test

Work placements

Not applicable.

Aims

The aim of the course is to make students familiar with the wireless communication channel, its structure and properties, with detection of the noisy signals, inter symbol interference, fading channel characteristics, phase keying, carrier recovery, clock recovery and modulation techniques QAM, OFDM and CDMA.

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

HAYKIN, S. Digital Communications, John Wiley & sons, 1998, 597 s., ISBN 0-471-62947-2. (EN)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-MN Master's

    branch MN-EST , 1. year of study, winter semester, compulsory

Type of course unit

 

Lecture

39 hours, optionally

Teacher / Lecturer

prof. Ing. Roman Maršálek, Ph.D.

Syllabus

The communication system. A wireless channel, a bandlimited channel, additive noise, fading.
Wireless communication signals. Power efficiency. Bandwidth efficiency. Error rate and E/N ratio. The equivalence of band-pass and low-pass. Line codes. Complex envelope.
Decision theory. Detection of signals. Additive white Gaussian noise channel. Antipodal signals. Detection of binary signals.
Inter symbol interference. Signal shaping. Receiver filter, transmitter filter. Equalizers.
Fading. Fading channel characteristics. Classification of the channels. Fading envelope distributions. Diversity techniques.
PSK, BPSK, DPSK. Waveforms, power spectral densities, constellations. Modulation and demodulation, error probability.
QPSK, OQPSK. Waveforms, power spectral densities, constellation diagrams, modulation, demodulation. Carrier recovery, clock recovery.
MSK. Power spectrum and bandwidth, modulation and demodulation, error probability, synchronisation.
CPM. The description, the trellis, the power spectral density, modulation, demodulation, synchronisation.
QAM. Power spectral densities, detection and error probability. Modulation and demodulation, synchronisation.
OFDM. Modulation using IFFT. The cyclic extension and orthogonality. A non-constant amplitude problem.
Spread spectrum systems. Direct sequence systems. Suppression of the undesirable signal. Rake receivers. Diversity. Frequency hoping.
Spreading sequences for CDMA and FH.
Space-time coding. UWB.

Exercise in computer lab

26 hours, compulsory

Teacher / Lecturer

prof. Ing. Roman Maršálek, Ph.D.

Syllabus

Modelling and simulation of the baseband signals.
Simulation of the bandpass signals.
Simulation of the frame synchronisation.
Modelling of the fading and diversity receptions.
Phase keying. Passing keying signals through the wireless channel, demodulation.
QPSK. MQAM. Passing keying signals through the wireless channel, demodulation.
OFDM. CDMA. Passing keying signals through wireless channels, demodulation.