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PREFACE1 INTRODUCTION1. 1 Historical Review 11.2 Elements of an Electrical Communication System1.2.1 Digital Communication System 91.2.2 Early Work in Digital Communications 131.3 Communication Channels and Their Characteristics1.4 Mathematical Models for Communication Channels1.5 Organization of the Book 281.6 Further Reading 302 ANALOG SIGNAL TRANSMISSION AND RECEPTION2.1 Introduction to Modulation 322.2 Amplitude Modulation £¨AM£© 332.2.1 Double-Sideband Suppressed Carrier AM 332. 2. 2 Conventional Amplitude Modulation 402.2.3 Single-Sideband AM 44* 2.2.4 Vestigial-Sideband AM 482.2.5 Implementation of AM Modulators and Demodulators 522.2.6 Signal Multiplexing 582.3 Angle Modulation 612.3. 1 Representation of FM and PM Signals 622.3.2 Spectral Characteristics of Angle-Modulated Signals 662.3. 3 Implementation of Angle Modulators and Demodulators 732.4 Radio and Television Broadcasting 812.4.1 AM Radio Broadcasting 822.4. 2 FM Radio Broadcasting 842.4.3 Television Broadcasting 872.5 Mobile Radio Systems 972.6 Further Reading 100Problems 1003 EFFECT OF NOISE ON ANALOG COMMUNICATION SYSTEMS 1153.1 Effect of Noise on Linear-Modulation Systems 1153.1.1 Effect of Noise on a Baseband System 1163. 1.2 Effect of Noise on DSB-SC AM 1163. 1.3 Effect of Noise on SSB AM 1183.1.4 Effect of Noise on Conventional AM 119*3.2 Carrier-Phase Estimation with a Phase-Locked Loop £¨PLL£© 1243.2. 1 The Phase-Locked Loop £¨ PLL £© 1253.2.2 Effect of Additive Noise on Phase Estimation 1283.3 Effect of Noise on Angle Modulation 1353.3. 1 Threshold Effect in Angle Modulation 1453.3.2 Pre-emphasis and De-emphasis Filtering 1493.4 Comparison of Analog-Modulation Systems 1533.5 Further Reading 154Problems 1554 INFORMATION SOURCES AND SOURCE CODING 1614.1 Modeling of Information Sources 1624. 1.1 Measure of Information 1644.1.2 Joint and Conditional Entropy 1674.2 Source-Coding Theorem 1694.3 Source-Coding Algorithms 1724.4 Rate-Distortion Theory 1774. 4. 1 Mutual Information 1784. 4. 2 Differential Entropy 1794.4.3 Rate-Distortion Function 1814.5 Quantization 1874.5. 1 Scalar Quantization 188* 4.5.2 Vector Quantization 1984.6 Waveform Coding 2014.6. 1 Pulse-Code Modulation £¨ PCM£© 2014. 6. 2 Differential Pulse-Code Modulation £¨ DPCM£© 2074.6. 3 Delta Modulation £¨AM£© 2104.7 Digital Audio Transmission and Digital Audio Recording 2134. 7. 1 Digital Audio in Telephone Transmission Systems 214* 4. 7. 2 Digital Audio Recording 2164.8 Further Reading 221Problems 2225 DIGITAL TRANSMISSION THROUGH THE ADDITIVE WHITE GAUSSIAN NOISE CHANNEL6 DIGITAL TRANSMISSION THROUGH BANDLIMITED AWGN CHANNELS7 CHANNEL CAPACITY AND CODING8 WIRELESS COMMUNICATIONSREFERENCESINDES