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. |
4. Pulse amplitude modulation (PAM) |
- Baseband PAM
- Bandlimited channels and intersymbol interferences (ISI)
- Nyquist criterion, raised cosine pulses, eye diagram
- Matched filtering
- Bandpass PAM |
6. The communication channel |
-Transmission media
-Signal to noise ratio
-Multipath and frequency selectivity
-Fading
-Doppler effect |