Fundamentals of Telecommunication Systems
FEKT-GFTSAcad. year: 2019/2020
The course deals with analog and digital telecommunications system architectures, with description of the building blocks function and with the methods of signal processing used. The course introduces the basic techniques of signal processing from analog to digital conversion through the source and channel coding, encryption, modulation, to multiple access techniques or synchronization. The basic types of transmission media are presented and their influence on transmitted signals and methods of negative effects suppression are discussed. Selected signal processing techniques are demonstrated in laboratory measurements. Students will use the gained knowledge in related courses oriented to specific wired and wireless communication systems.
Learning outcomes of the course unit
The graduate is able to: (1) describe the common telecommunication system architecture, (2) explain the basic building blocks operation, (3) characterize the transmission media and influences of the transmission environment, (4) explain the methods of signal processing in the sub-parts of the system, (5) discuss the signal processing techniques in specific systems.
Knowledge of bachelor mathematics (integral calculus, solution of equations, fundamentals of probability analysis and statistics) and fundamentals of signal processing (convolution, correlation, filtering, spectrum analysis) are requested.
Recommended optional programme components
Recommended or required reading
SKLAR, B. Digital Communications Fundamental and Applications. Upper Saddle River: Prentice Hall, 2001. (EN)
COUCH, L.V. Digital and analog Communications. Upper Saddle River: Prentice Hall, 2001. (EN)
DUNLOP, J., SMITH, D.G. Telecommunications Engineering, CRC Press, 1994. (EN)
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
Students can obtain maximally 30 points for their activities during semester and 70 points for the final exam. The honored activities are as follows: one midterm test oriented to the application of selected signal processing techniques (10 points) and laboratory measurements (20 points). The written final exam is based on the theory as well as calculations (70 points).
Language of instruction
1. Telecommunication system common architecture, basic building blocks.
2. Formatting and source coding. Compression of voice, video (JPEG, MPEG) and digital data (LZW, Huffman coding).
3. Channel coding. Block and convolutional codes, concatenated codes, Turbo and LDPC codes.
4. Baseband modulation (PAM, PWM, PPM). Line codes. Spectrum and bit error probability calculation.
5. Detection of communication signals in noise. AWGN channel. Binary signal reception, hypothesis testing. Matched filter.
6. Inter-symbol interference. Impulse shaping. Signal equalization (zero forcing, MMSE).
7. Band-pass modulation (AM, FM, MPSK, MSK, GMSK, MQAM). Constellation diagrams, bit error probability.
8. Multiple access systems (deterministic and stochastic). Multiplexing techniques.
9. Communication channel (metallic line, optical fiber, free space). Noise and fading channel. Diversity reception.
10. Spread spectrum techniques, FH/DS-SS.
11. Carrier frequency and phase synchronization. Symbol, frame and network synchronization.
12. Selected telecommunication systems and technology. ISDN, ADSL.
13. Selected telecommunication systems and technology. Satellite communication, optical fiber and wireless links.
1. Analog modulations.
2. Digital modulations.
3. Matched filter.
4. Baseband modulation, line codes.
5. Data transmission over ADSL.
The course is aimed to present common telecommunication system architecture, transmission characteristics of the environment and methods of signal processing in the sub-parts of this system.
Specification of controlled education, way of implementation and compensation for absences
Laboratory exercises are compulsory. Missed lessons can be made up usually by the end of semester.