# Fundamentals of Telecommunications

**Course title: **Fundamentals of Telecommunications

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**Code:** FEIT10L007

**Number of credits (ECTS):** 6

**Weekly number of classes: **3+1+1+0** **

**Institute: **Telecommunications

**Prerequisite for enrollment of the subject: **Passed: Mathematics 2, Taken course: Mathematics 3

**Course goals/Competences:** Getting familiar with signal analysis, transmission though linear systems, signal distortions, amplitude and angle modulation and demodulation, analog to digital conversion, pulse coded modulation, binary modulation, thermal noise, signal-to-noise ratio, transmission errors (understanding the fundamental communications principles and schemes for information transmission)

**Total available number of classes: **180

**Curriculum:** Notion of information. Basic model of a telecommunication system. Classification of telecommunications signals. Periodic signals. Fourier series. Spectrum of periodic signals. Non periodic signals. Convolution. Correlation. Parseval’s theorem. Transfer function and impulse response of a linear system. Linear amplitude distortions. Ideal transmission of telecommunications signals. Distortion due to spectrum restriction. Amplitude modulation (AM). AM spectrum. Coherent demodulation. Envelope detector. Phase and frequency modulation. Spectrum of angle modulation. Demodulation of phase and frequency modulated signals. Random noise. White Gaussian noise and its properties. Signal-to-noise ratio in systems with amplitude and angle modulation. Sampling theorem. Natural and regular sampling. Uniform quantization. Non-uniform quantization. Pulse coded modulation (PCM). Transmission of PCM signals through bandwidth-limited systems. Criterions for distortion-less transmission. Inter-symbol interference. Notion of digital modulation. Binary shift keying (binary amplitude shift keying, binary phase shift keying, binary frequency shift keying). Coherent and non-coherent detection. Error probability.

**Literature: **

Literature |
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Compulsory literature |
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No. |
Author |
Title |
Publisher |
Year |

1 |
B. P. Lathi |
Modern digital and analog communication systems |
Oxford University Press |
1998 |

2 |
J. G. Proakis, M. Salehi |
Communications systems engineering |
Prentice Hall |
2002 |

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