Communication Systems

Přednášející:

Robert Bešťák (gar.), Ivan Pravda

Cvičící:

Robert Bešťák (gar.), Ivan Pravda

Předmět zajišťuje:

katedra telekomunikační techniky

Anotace:

The course gives an overview of the basic principles and methods used in digital communications in a variety of transmission environments (radio systems, metallic telecommunication lines, optical fiber). The students will learn the basic functional blocks of the communication systems, encoding and decoding, modulation and demodulation methods. The students obtain the idea about sources of errors in the transmission and ways for their detection and correction. They will learn how to calculate the theoretical and practical communication channel capacity, the basic parameters on digital interfaces measurement, including error rate and jitter.

Požadavky:

K zápočtu se vyžaduje 100% účast a zpracování laboratorních úloh a odevzdání samostatné práce. Hodnocení u zkoušky je tvořeno cca 20% za cvičení, 20% za samostatnou práci, 60% za vlastní zkoušku.

Osnova přednášek:

1.Shannon?s diagram of a general communication system, blocks function, channel capacity

2.Channel coding, classification of the coding methods, convolutional and block codes

3.Error detection and correction (fundaments and implementation of the CRC and RS codes, interleaving, ARQ)

4.Digital modulation and its applications, multi-carrier modulation OFDM

5.Channel multiplexing, multiple access methods (TDMA, FDMA, CDMA), spread spectrum communication (DS SS, FH SS, TH SS)

6.Radio function blocks and their function

7.Radio systems, examples

8.Telecommunication line, using for broadband digital transmission, modeling of primary and secondary parameters

9.AWGN channel with NEXT and FEXT crosstalk, channel capacity and crosstalk cancellation

10.Regeneration of digital signal, inter-symbol interference, eye diagram

11.Probability of error for AWGN, measurement of error rate, parameters for evaluate bit and block error

12.Function blocks of modems, example of SHDSL and ADSL modems

13.Fiber optic communication, basic types of fiber, elementary calculation of fiber lines

14.Basic parameters of optical and digital interfaces measurement, impulse mask, jitter and wander

Osnova cvičení:

1.Preliminary exercises, introduction to the 1st block of exercise

2.Exercise 1A - Channel coding (in Matlab)

3.Exercise 1B - Basic property of the digital modulations (in Matlab)

4.Exercise 1C - Spread spectrum (in Matlab)

5.Exercise 1D - Measurement of the basic radio blocks

6.Exercise 1E - Measurement of the basic parameters of the radio receiver

7.Test and introduction to the 2nd block of exercise

8.Exercise 2A - Measurement and modeling of telecommunication line parameters

9.Exercise 2B - Measurement and modeling of error rate for baseband transmission

10.Exercise 2C - Measurement on the digital subscriber line

11.Exercise 2D - Estimation of digital subscriber line capacity

12.Exercise 2E - Measurement of jitter tolerance

13.The replacement exercise

14.Credit

Cíle studia:

Studijní materiály:

1.Rohde, U.- Whitaker, J.: Communications receivers: DSP, software radios, and design. McGraw-Hill, New York. 2001.

2.Meyr, H. - Moeneclaey, M. - Fechtel, S. A.: Digital Communication Receivers. John Wiley and sons. New York. 1998.

Poznámka:

Rozsah výuky v kombinované formě studia: 14p+6l

Rozvrh na zimní semestr 2011/2012:

Rozvrh není připraven

Rozvrh na letní semestr 2011/2012:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Po	místnost T2:B3-710 Pravda I. 07:30–09:00 (přednášková par. 1) Dejvice Laboratoř K332místnost T2:B3-710 Pravda I. 12:45–14:15 (přednášková par. 1) Dejvice Laboratoř K332místnost T2:B3-710 Pravda I. 14:30–16:00 (přednášková par. 1) Dejvice Laboratoř K332
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Předmět je součástí následujících studijních plánů:

• Communications, Multimedia and Electronics - Communication Technology (povinný předmět programu)
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• Communications, Multimedia and Electronics - Applied Electronics (povinný předmět programu)
• Communications, Multimedia and Electronics - Network and Information Technology (povinný předmět programu)
• Communications, Multimedia and Electronics (povinný předmět programu)