Chapter 1 Introduction 1.1 Elements and Limitations of Communication Systems Information,Messages,and Signals Elements of a Communication System Fundamental Limitations 1.2 Modulation and Coding Modulation Methods Modulation Benefits and Applications Coding Methods and Benefits 1.3 Electromagnetic Wave Propagation Over Wireless Channels RF Wave Deflection Skywave Propagation 1.4 Emerging Developments 1.5 Societal Impact and Historical Perspective Historical Perspective 1.6 Prospectus Chapter 2 Signals and Spectra 2.1 Line Spectra and Fourier Series Phasors and Line Spectra Periodic Signals and Average Power Fourier Series Convergence Conditions and Gibbs Phenomenon Parseval's Power Theorem 2.2 Fourier Transforms and Continuous Spectra（2.1） Fourier Transforms Symmetric and Causal Signals Rayleigh's Energy Theorem Duality Theorem Transform Calculations 2.3 Time and Frequency Relations （2.2） Superposition Time Delay and Scale Change Frequency Translation and Modulation s Differentiation and Integration 2.4 Convolution（2.3） Convolution Integral Convolution Theorems 2.5 Impulses and Transforms in the Limit（2.4） Properties of the Unit Impulse Impulses in Frequency Step and Signum Functions Impulses in Time 2.6 Discrete Time Signals and the Discrete Fourier Transform Convolution Using the DFT（2.4） Chapter 3 Signal Transmission and Filtering 3.1 Response of LTI Systems （2.4） Impulse Response and the Superposition Integral Transfer Functions and Frequency Response Block-Diagram Analysis 3.2 Signal Distortion in Transmission（3.1）
Distortionless Transmission Linear Distortion Equalization Nonlinear Distortion and Companding 3.3 Transmission Loss and Decibels（3.2） Power Gain Transmission Loss and Repeaters Fiber Optics Radio Transmission 3.4 Filters and Filtering（3.3） Ideal Filters Bandlimiting and Timelimiting Real Filters Pulse Response and Risetime 3.5 Quadrature Filters and Hilbert Transforms（3.4） …… Chapter 4 Linear CW Modulation Chapter 5 Exponential CW Modulation Chapter 6 Sampling and Pulse Modulation Chapter 7 Analog Communication Systems Chapter 8 Probability and Random Variables Chapter 9 Random Signals and Noise Chapter 10 Noise in Analog Modulation Systems Chapter 11 Baseband Digital Transmission Chapter 12 Digitization Techniques for Analog Messages and Computer Networks Chapter 13 Channel Coding and Encryption Chapter 14 Bandpass Digital Transmission Chapter 15 Spread Spectrum Systems Chapter 16 Information and Detection Theory Appendix: Circuit and System Noise Tables Solutions to Exercises Answers to Selected Problems Index
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