Course detail

Communication Systems

FEKT-BPA-KSYAcad. year: 2021/2022

In the first part of the course, students become familiar with architecture of common analog and digital communication systems (block diagram, basic functions). Then, the building blocks operation and methods of signal processing (source coding, encryption, channel coding, equalization, modulation, synchronization, etc.) will be described in detail and examples of the building blocks application in current communication systems will be given. In the next part of the course, methods of sharing of communications resources (multiple access, frequency spectrum allocation, methods of signal transmission) will be presented and the principle of spread spectrum and OFDM systems will be explained. At the end, the effects of the transmission environment on signal propagation and methods of their elimination (fading, Doppler effect, diversity) will be described.

Language of instruction

English

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

prof. Ing. Aleš Prokeš, Ph.D.

Department

Department of Radio Electronics (UREL)

Offered to foreign students

The home faculty only

Learning outcomes of the course unit

The graduate is able:
1. describe architecture of common analog, and digital communication systems,
2. explain basic building blocks operation,
3. apply some algorithms of signal processing,
4. explain the effects of the transmission environment and methods of sharing of communications resources,
5. orientate oneself in the use of partial building blocks in current communication systems.

Prerequisites

Fundamentals of signal processing and electronics are required.

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. Methods include lectures, laboratory exercises and numerical exercises. Course is taking advantage of e-learning (Moodle) system.

Assesment methods and criteria linked to learning outcomes

Students can obtain 30 points for the activity in laboratory and numerical exercises. The final exam is awarded by 70 points (maximally).

Course curriculum

1. History
2. Digital communication system architecture
3. Formatting and source coding. Sampling, quantization, audio/video/data compression
4. Cryptography. Conventional and public key cryptosystems
5. Channel coding. Block, cyclic, and convolutional codes
6. Pulse modulation. Line codes NRZ, RZ. Matched filter, equalization
7. Band-pass modulation. Analog modulations AM, FM, PM. Digital modulations ASK, FSK, PSK, QAM.
8. Multiple access, FDMA, TDMA, CDMA, Aloha, CSMA/CD
9. Wireless interface, circuit/packed-switched networks
10. Synchronization, network synchronization
11. Wired communication systems, ISDL, HDSL, SDSL, ADSL, VDSL
12. Wireless communication systems. Mobile systems 3G, 4G. Data networks WLAN, WWAN, PAN, WiFi, WEP, WPA, WPA2
13. Computer networks, OSI model, network topologies, active network components, LAN, WAN

Work placements

Not applicable.

Aims

The aim of the course is to acquaint students with the concept and common architecture of analogue and digital communication systems, with their basic building blocks operation and with the used methods of signal processing, explain the effects of the transmission environment and methods of sharing of communications resources, show examples of the use of partial building blocks in current communication systems.

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

Evaluation of activities is specified by a regulation, which is issued by the lecturer responsible for the course annually.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

COUCH, L.V. Digital and analog Communications. 6. vyd. Upper Saddle River, Prentice Hall, 2001 (EN)
GIBSON, Jerry D. Principles of Digital and Analog Communications. New York: Macmillan Publishing Company, 1990. (EN)
SAFAK, M, Digital Communications, John Wiley & Sons, 2017 (EN)
SKLAR, B. Digital Communications: Fundamental and Applications, 3rd Edition. Pearson, 2020 (EN)

Recommended reading

Not applicable.

Elearning

eLearning: currently opened course

Classification of course in study plans

  • Programme BPA-ELE Bachelor's

    specialization BPA-ECT , 3 year of study, winter semester, compulsory

  • Programme BPC-TLI Bachelor's 0 year of study, winter semester, compulsory-optional

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. Aleš Prokeš, Ph.D.

Syllabus

Theoretical fundamentals of communications. Theory of information. Channel capacity.
Components of communication systems.
Digital and analogue communication signals. Source coding. Adaptive prediction, Huffman code. Fundamentals of the audio and video compression.
Fundamentals of cryptography. Channel coding. Error correcting and detecting codes, redundancy. Cyclic, Hamming and convolutional codes. Turbo codes.
Baseband pulse transmission. Line coding. Synchronnous and asynchronnous transfer mode.
Passband data transmission. Amplitude and phase modulations.
Fundamentals of digital modulations FSK, ASK, PSK, QAM, MSK. Correlation coding. Matched filter. Carrier and symbol timming recovery.
Multiple-access techniques (FDMA, TDMA, CDMA). OFDM.
Fundamentals of spread-spectrum techniques. FH and DS systems.
Audio and video signal transmission. Telephone network. Radio and TV broadcasting.
Data Transmission. Telephone service, ISDN, AHDL. Wireless systems (trunking systems, WLL systems, point-to-multipoint systems). Terresterial Digital Audio Broadcasting (T-DAB, DVB).
Optical communication systems, modulation techniques.
Satelite communications. Local area networks.
Reliability of communicaton systems. Perspective of communication.

Laboratory exercise

26 hod., compulsory

Teacher / Lecturer

Ing. Radim Zedka, Ph.D.
Ing. Josef Vychodil, Ph.D.

Syllabus

Spectrum of modulated signals.
Data coding for transmission.
Performances of digital modulated signals.
Data communicaton using modems.
Matched filter.

Elearning

eLearning: currently opened course