TEL 508 - Digital Communication Theory

Course Objectives

1 To introduce the basic properties of signals and systems used in digital communications,
2 To teach methods to evaluate the system performance
3 To convey approaches to improve the system performance

Course Description

Representation of bandpass signals and systems, complex envelope, lowpass equivalents, representation of bandpass random processes. Signal-space concept: Vector channels. Gram-Schmidt orthonormalization method, recovery of signal vectors, correlator and matched filter receivers. Calculation of the error probability in Gaussian noise channels, union bound for the error probability. Efficient signaling for message sequences: Time – bandwidth - dimension relationship, selection of efficient signals. Channel capacity theorem. Bandwidth efficient coding in signal space: Coded modulation, properties, design criteria, performance analysis.