Guia docente 2023_24 Escola de Enxeñaría de Telecomunicación

Grado en Ingeniería de Tecnologías de Telecomunicación

Signal Transmission and Reception Techniques

Contents

Topic	Sub-topic
1. Introduction to digital communication systems	-Basic elements and general description of a communication system. -Analog and digital communications -Description of a digital transmitter -Description of a digital receiver
2. Signals, systems and stochastic processes in communications	-Review of basic concepts: signals and systems. Continuous time Fourier transform. - Deterministic signals: energy-defined and power-defined. Autocorrelation. Spectral density. - Random variables. Stochastic processes: stationarity, autocorrelation, power spectral density, bandwidth. White noise.
3. Frequency conversion and analog processing	-Amplitude modulation (AM) and frequency modulation (FM) -I/Q modulation and demodulation - Transceiver requirements and specifications -Receiver architectures: direct conversion, intermediate frequency. Analog and digital stages.
4. Pulse amplitude modulation (PAM)	- Baseband PAM - Bandlimited channels and intersymbol interferences (ISI) - Nyquist criterion, raised cosine pulses, eye diagram - Matched filtering - Bandpass PAM
5. Modulation and detection in Gaussian channels	- Introduction to the Signal Subspace - Discrete equivalent channel - Maximum A Posteriori (MAP) and Maximum Likelihood (ML) detectors - Probability of error
6. The communication channel	-Transmission media -Signal to noise ratio -Multipath and frequency selectivity -Fading -Doppler effect
Practical content	In this course there is no division between theoretical and practical content. Indeed, practical exercises related to many of the previously described contents are considered.