Advances in Communication Systems

List of Contributors

Preface

Contents of Previous Volumes

The Outlook for Communication

I. Communication In Our World

II. Broadcast Radio

III. Television

IV. Ultrahigh Frequency TV

V. Cable TV

VI. Person-To-Person Communication

VII. Mobile Telephones

VIII. Mobile Communication For Ships

IX. Video Telephones

X. Optical Fibers

XI. Domestic Satellites

XII. The Introduction Of Video Service

XIII. Plain Old Telephone Service

XIV. Data Communication

XV. Data Networks

XVI. Data Terminals - The Crucial Problem

XVII. The Outlook And The Problems

Advances in Communication through Light Fibers

I. Introduction

II. Theoretical Considerations

A. General Properties of Optical Dielectric Waveguides

B. Optical Fiber Waves

C. Excitation of Modes on Optical Fibers

D. Pulse Distortion in Optical Fibers

E. Coupled Mode Theory of Optical Fibers

F. Effects of Fiber Imperfections

III. Practical Considerations

A. Glass Fibers

B. Sources

C. Modulators

D. Detectors

E. Systems

IV. Integrated Optical Circuits

A. Basic IOC Structure

B. Couplers

C. Materials and Fabrication Techniques

D. Concluding Remarks

References

Advances in Equalization for Intersymbol Interference

I. Introduction

A. Intersymbol Interference in Data Transmitted through Time-Dispersive Channels

B. A Discrete-Time Channel Model

II. Linear Equalization

A. Transversal Equalizer

B. Linear Feedback Equalizer

C. Performance Limiations of Linear Equalizers

III. Nonlinear Detection Techniques

A. Decision-Feedback Filter

B. A Detection Technique Based on Maximum a Posteriori Probabilities

C. Maximum Likelihood Sequence Estimation (MLSE) and the Viterbi Algorithm (VA)

D. An Adaptive Channel Estimator

E. Performance of the Adaptive Viterbi Algorithm

F. Concluding Remarks on Nonlinear Detection Techniques

IV. Recursive Algorithms for Adaptive Equalization

A. The Performance Index

B. Adaptive Algorithms Based on Estimates of Gradients

C. Stability and Self-Noise of the Algorithms Based on Linearly Filtered Gradients

References

Advances in Data Compression

I. Introduction

A. Summary

B. Source Modeling

II. Variable-Rate Noiseless Source Codes

III. Fixed-Rate Noiseless Coding

IV. Universal Coding on Video Data

V. Fixed-Rate Coding Subject to a Fidelity Criterion

VI. Variable-Rate Coding with Distortion

VII. Conclusions

References

Some Advances in Broadcast Channels

I. Introduction

II. An Example of a Gaussian Broadcast Channel

III. Broadcast Channel Formulation

IV. Review of Some Extreme Broadcast Channels

A. Orthogonal Channels

B. Incompatible Channels

C. Bottleneck Channels

V. Degraded Broadcast Channels

VI. An Achievable Region for the General Broadcast Channel

A. Random Encoding for Theorem 2'

B. Decoding Rule

VII. The General Multiuser Framework

VIII. The Multiaccess Gaussian Channel

IX. Concluding Remarks

References

Feedback Decoding of Convolutional Codes

I. Introduction

II. Convolutional Encoding

III. Feedback Decoding

IV. Syndrome Decoding for Systematatic Codes

V. Code Selection

VI. Performance

VII. Application to Burst Error Channels

VIII. Code Synchronization

IX. Conclusions

References

Advances in Coding and Modulation for Noncoherent Channels Affected by Fading, Partial Band, and Multiple-Access Interference

I. Introduction

II. Basic Modulation, Channel Models, and Optimum Diversity

III. Performance Improvement Through Coding

A. Multiple Alphabets - Block Orthogonal Codes

B. Convolutional Codes

C. Conclusions and Comparisons

Appendix I Worst-Case Distribution for Partial Band Interference

Appendix II Dual-k Convolutional Codes: Structure and Performance

Appendix III Random Coding Bound

References

Index