Portale di Ateneo - En.Unibs.it

Introduction.
Course structure.

Modulation and demodulation for the AWGN channel
Characterization of signals and noise waveforms.
Modulation and demodulation for the Additive White Gaussian Noise channel (AWGN).
The optimal receiver for the AWGN channel.
Performance estimation. The Union bound. Examples.

Digital Modulation Systems (OFDM, CPM, DSSS)
Orthogonal Frequency Division Multiplexing (OFDM). Transmitter and receiver. Channel equalization in the frequency domain. Effects of non-linearities. Examples of applications of OFDM.
Continuos Phase Modulation techniques (CPM). Full and partial respone CPM. Optimal and symplified receivers. Power spectrum estimation. Practical examples (GMSK, TFM, ...).
Direct Sequence Spread Spectrum (DSSS) Modulation and Code Division Multiple Access (CDMA) techniques.

Block and Convolutional Linear Codes
Linear block codes.
The generation matrix and the parity check matrix. Cyclic codes. Hard and soft decision decoding. Performance evaluation. Burst error correction. Examples.
Convolutional codes.
Definition. Optimum decoding. The Viterbi algorithm. Performance evaluation. Classic concatenated codes. Examples.

Recent trends in channel coding
Turbo codes.
Low Density Parity Check codes.
Examples.

Examples of modern communications systems
GSM, UMTS, LTE, xDSL, DPL, DAB, DVB, WiMax, WiFi, Software Radio, Cognitive Radio, MIMO Systems, UWB, RFID, Domotic Applications, Wireless communications in the Smart Cities, etc.