Introduction to Digital Communications. Vitaly Skachek

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1 MTAT Vitaly Skachek

2 Administration information Instructor: Vitaly Skachek Office: J. Liivi Phone:

3 Related subjects Signal processing Information theory Coding theory Network communications, protocols, algorithms Compression Image processing

4 Course organization Books John Proakis, Digital communications Robert G. Gallager, Principles of digital communications Hwei Hsu, Analog and digital communications

5 Course organization Books John Proakis, Digital communications Grade Robert G. Gallager, Principles of digital communications Hwei Hsu, Analog and digital communications Homeworks 60% (both math and MATLAB exercises) Final exam 40%

6 History of communications 490BC: the battle of Marathon

7 History of communications 490BC: the battle of Marathon before BC: smoke signals

8 History of communications 490BC: the battle of Marathon before BC: smoke signals around 1AC: message pigeons

9 History of communications 490BC: the battle of Marathon before BC: smoke signals around 1AC: message pigeons 1767: optical telegraph, Sir Richard Lovell Edgeworth

10 History of communications 490BC: the battle of Marathon before BC: smoke signals around 1AC: message pigeons 1767: optical telegraph, Sir Richard Lovell Edgeworth 1832: electromagnetic telegraph, Pavel Schilling; 1833: Gauss and Weber; 1833: Samuel Morse

11 History of communications 490BC: the battle of Marathon before BC: smoke signals around 1AC: message pigeons 1767: optical telegraph, Sir Richard Lovell Edgeworth 1832: electromagnetic telegraph, Pavel Schilling; 1833: Gauss and Weber; 1833: Samuel Morse 1844: Morse code

12 Morse code Source: Wikipedia

13 History of communications (cont.) 1858: first transatlantic cable

14 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell

15 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi

16 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA

17 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA)

18 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley

19 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley 1948: mathematical theory of communications - Claude Shannon

20 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley 1948: mathematical theory of communications - Claude Shannon 1948: transistor - Shockley, Bardeen, Brattain

21 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley 1948: mathematical theory of communications - Claude Shannon 1948: transistor - Shockley, Bardeen, Brattain 1955: laser - Townes, Schawlow

22 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley 1948: mathematical theory of communications - Claude Shannon 1948: transistor - Shockley, Bardeen, Brattain 1955: laser - Townes, Schawlow around 1974: the Internet

23 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley 1948: mathematical theory of communications - Claude Shannon 1948: transistor - Shockley, Bardeen, Brattain 1955: laser - Townes, Schawlow around 1974: the Internet 1978: cellular radio

24 History of communications (cont.) 1858: first transatlantic cable 1875: invention of telephone - Alexander Graham Bell 1895: wireless telegraphy - Marconi 1907: regular radio broadcasts - USA 1926: television - Baird (UK), Jenkins (USA) 1928: information theory - Ralph Hartley 1948: mathematical theory of communications - Claude Shannon 1948: transistor - Shockley, Bardeen, Brattain 1955: laser - Townes, Schawlow around 1974: the Internet 1978: cellular radio 1980: first fiber optics system, Bell Systems

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