The second edition of this accessible book provides readers with an introductory treatment of communication theory as applied to the transmission of information-bearing signals. While it covers analog communications, the emphasis is placed on digital technology. It begins by presenting the functional blocks that constitute the transmitter and receiver of a communication system. Readers will next learn about electrical noise and then progress to multiplexing and multiple access techniques.

Contents:
· Introduction.

· Fourier Representation of Signals and Systems.

· Amplitude Modulation.

· Angle Modulation.

· Pulse Modulation: Transition from Analog to Digital Communications.

· Baseband Data Transmission.

· Digital Band-Pass Modulation Techniques.

· Random Signals and Noise.

· Noise in Analog Communications.

· Noise in Digital Communications.

· System and Noise Calculations.

Appendix 1: Power Ratios and Decibel.

Appendix 2: Fourier Series.

Appendix 3: Bessel Functions.

Appendix 4: The Q-Function and Its Relationship to the Error Function.

Appendix 5: Schwarz's Inequality.

Appendix 6: Mathematical Tables.

Appendix 7: MATLAB Scripts for Computer Experiments to Problems in Chapters 7-10.

Appendix 8: Answers to Drill Problems.

Glossary.

Bibliography.

Index.