E-Book Overview
Communication technology has become pervasive in the modern world, and ever more complex. Focusing on the most basic ideas, this carefully paced, logically structured textbook is packed with insights and illustrative examples, making this an ideal introduction to modern digital communication. Examples with step-by-step solutions help with the assimilation of theoretical ideas, and MATLAB exercises develop confidence in applying mathematical concepts to real-world problems. Right from the start the authors use the signal space approach to give students an intuitive feel for the modulation/demodulation process. After a review of signals and random processes, they describe core topics and techniques such as source coding, baseband transmission, modulation, and synchronization. The book closes with coverage of advanced topics such as trellis-coding, CMDA, and space-time codes to stimulate further study. This is an ideal textbook for anyone who wants to learn about modern digital communication.
E-Book Content
A First Course in Digital Communications Ed Shwedyk Department of Electrical & Computer Engineering University of Manitoba Winnipeg, MB, CANADA R3T 5V6
Ha H. Nguyen Department of Electrical & Computer Engineering University of Saskatchewan Saskatoon, SK, CANADA S7N 5A9 October 4, 2006
Contents
1
Introduction page 1 1.1 Why Digital? 1 1.2 Block Diagram of a Digital Communication System 2
2
Fundamentals of Signals and Systems
3
Review of Probability Theory and Random Processes 5 3.1 Probability and Random Variables 5 3.2 Random Processes 18 3.2.1 Statistical Averages 20 3.2.2 Stationary Processes 21 3.3 Power Spectral Density 25 3.4 Random Processes and Linear Systems 26 3.5 Noise in Communication Systems 27
4
Sampling and Quantization 4.1 Sampling of Continuous-Time Signals 4.1.1 Ideal