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Publisher:

Dover Publications

Publication Date:

1994

Number of Pages:

496

Format:

Paperback

Price:

19.95

ISBN:

9780486682105

Category:

Textbook

[Reviewed by , on ]

Tom Schulte

12/14/2011

Originally published in 1961, this work appears on the surface to be a graduate-level text for computer engineering students. As such, it may seem to have only historical interest. It would be tempting to skip over it in favor of more up-to-date works. Besides being part of the constellation of seminal works on information theory, however, this book is still very illustrative and enlightening, especially for someone mathematically sophisticated.

The first four chapters take the reader from elementary probability to the basics of information theory. Beginning with such basic concepts as sets, sample spaces, and random variables, Reza develops the mathematics of measuring information, stochastic elements in communication, and channel capacity.

The final chapter, on group codes, can serve as a supplement in the classroom or for independent study, since it does not require the higher mathematics of earlier chapters. It is an excellent introduction to the topic of coding theory.

This is a straight republishing of the classic work and there is no new or updated material. Still, it is a complete and classic overview that includes advanced topics, avoids being overly rigorous, and makes room for practical applications. It is comparable to *Information Theory* by Robert B. Ash; both are suitable additions to any information theory library focused on historical development of the topic. I recommend reading Reza before Ash. Reza’s book is an excellent follow-up to *An Introduction to Information Theory* by John R. Pierce for those seeking greater insight into the development of this important area of applied mathematics. (All three seminal works exist as Dover reprints.)

Chapters rich with examples conclude with exercises that are very illustrative. Generally, answers are not given. Sometimes exercises include explicit guidance to help the reader accomplish the tasks. Closely mingling applications with theory and including detailed exercises designed for illumination makes the book an excellent opportunity for self-study. Shining a light on Shannon’s theoretical advances, Reza connects probability to the mathematics of information to coding schemes.

The first two chapters alone are a very good introduction to probability. An axiomatic approach based on fundamentals of set theory and Boolean algebra is used to develop discrete probability from the ground up. From these building blocks it is a very direct line of development to describe mathematically such concepts as information transition rate, channel noise, redundancy, and more.

This book is an excellent opportunity to connect basic mathematical literacy to a higher level understanding of information theory and is sufficiently self-contained for independent study.

Tom Schulte designs Statistical Process Control (SPC) software for manufacturers at Plex Systems in Michigan.

PREFACE | |||||||

CHAPTER 1 Introduction | |||||||

1-1. Communication Processes | |||||||

1-2. A Model for a Communication System | |||||||

1-3. A Quantitative Measure of Information | |||||||

1-4. A Binary Unit of Information | |||||||

1-5. Sketch of the Plan | |||||||

1-6. Main Contributors to Information theory | |||||||

1-7. An Outline of Information Theory | |||||||

Part 1 : Discrete Schemes without Memory | |||||||

CHAPTER 2 Basic Concepts of Probability | |||||||

2-1. Intuitive Background | |||||||

2-2. Sets | |||||||

2-3. Operations on Sets | |||||||

2-4. Algebra of Sets | |||||||

2-5. Functions | |||||||

2-6. Sample Space | |||||||

2-7. Probability Measure | |||||||

2-8. Frequency of Events | |||||||

2-9. Theorem of Addition | |||||||

2-10. Conditional Probability | |||||||

2-11. Theorem of Multiplication | |||||||

2-12. Bayes's Theorem | |||||||

2-13. Combinatorial Problems in Probability | |||||||

2-14. Trees and State Diagrams | |||||||

2-15. Random Variables | |||||||

2-16. Discrete Probability Functions and Distribution | |||||||

2-17. Bivariate Discrete Distributions | |||||||

2-18. Binomial Distribution | |||||||

2-19. Poisson's Distribution | |||||||

2-20. Expected Value of a Random Variable | |||||||

CHAPTER 3 Basic Concepts of Information Theory: Memoryless Finite Schemes | |||||||

3-1. A Measure of Uncertainty | |||||||

3-2. An Intuitive Justification | |||||||

3-3. Formal Requirements for the Average Uncertainty | |||||||

3-4. H Function as a Measure of Uncertainty | |||||||

3-5. An Alternative Proof That the Entropy Function Possesses a Maximum | |||||||

3-6. Sources and Binary Sources | |||||||

3-7. Measure of Information for Two-dimensional Discrete Finite Probability Schemes | |||||||

3-8. Conditional Entropies | |||||||

3-9. A Sketch of a Communication Network | |||||||

3-10. Derivation of the Noise Characteristics of a Channel | |||||||

3-11. Some Basic Relationships among Different Entropies | |||||||

3-12. A Measure of Mutual Information | |||||||

3-13. Set-theory Interpretation of Shannon's Fundamental Inequalities | |||||||

3-14. "Redundancy, Efficiency, and Channel Capacity" | |||||||

3-15. Capacity of Channels with Symmetric Noise Structure | |||||||

3-16. BSC and BEC | |||||||

3-17. Capacity of Binary Channels | |||||||

3-18. Binary Pulse Width Communication Channel | |||||||

3-19. Uniqueness of the Entropy Function | |||||||

CHAPTER 4 Elements of Encoding | |||||||

4-1. The Purpose of Encoding | |||||||

4-2. Separable Binary Codes | |||||||

4-3. Shannon-Fano Encoding | |||||||

4-4. Necessary and Sufficient Conditions for Noiseless | |||||||

4-5. A Theorem on Decodability | |||||||

4-6. Average Length of Encoded Messages | |||||||

4-7. Shannon's Binary Encoding | |||||||

4-8. Fundamental Theorem of Discrete Noiseless Coding | |||||||

4-9. Huffman's Minimum-redundancy Code | |||||||

4-10. Gilbert-Moore Encoding | |||||||

4-11. Fundamental Theorem of Discrete Encoding in Presence of | |||||||

4-12. Error-detecting and Error-correcting Codes | |||||||

4-13. Geometry of the Binary Code Space | |||||||

4-14. Hammings Single-error Correcting Code | |||||||

4-15. Elias's Iteration Technique | |||||||

4-16. A Mathematical Proof of the Fundamental Theorem of Information Theory for Discrete BSC | |||||||

4-17. Encoding the English Alphabet | |||||||

Part 2: Continuum without Memory | |||||||

CHAPTER 5 Continuous Probability Distribution and Density | |||||||

5-1. Continuous Sample Space | |||||||

5-2. Probability Distribution Functions | |||||||

5-3. Probability Density Function | |||||||

5-4. Normal Distribution | |||||||

5-5. Cauchy's Distribution | |||||||

5-6. Exponential Distribution | |||||||

5-7. Multidimensional Random Variables | |||||||

5-8. Joint Distribution of Two Variables: Marginal Distribution | |||||||

5-9. Conditional Probability Distribution and Density | |||||||

5-10. Bivariate Normal Distribution | |||||||

5-11. Functions of Random Variables | |||||||

5-12. Transformation from Cartesian to Polar Coordinate System | |||||||

CHAPTER 6 Statistical Averages | |||||||

6-1. Expected Values; Discrete Case | |||||||

6-2. Expectation of Sums and Products of a Finite Number of Independent Discrete Random Variables | |||||||

6-3. Moments of a Univariate Random Variable | |||||||

6-4. Two Inequalities | |||||||

6-5. Moments of Bivariate Random Variables | |||||||

6-6. Correlation Coefficient | |||||||

6-7. Linear Combination of Random Variables | |||||||

6-8. Moments of Some Common Distribution Functions | |||||||

6-9. Characteristic Function of a Random Variable | |||||||

6-10. Characteristic Function and Moment-generating Function of Random Variables | |||||||

6-11. Density Functions of the Sum of Two Random Variables | |||||||

CHAPTER 7 Normal Distributions and Limit Theorems | |||||||

7-1. Bivariate Normal Considered as an Extension of One-dimensional Normal Distribution | |||||||

7-2. MuItinormal Distribution | |||||||

7-3. Linear Combination of Normally Distributed Independent Random Variables | |||||||

7-4. Central-limit Theorem | |||||||

7-5. A Simple Random-walk Problem | |||||||

7-6. Approximation of the Binomial Distribution by the Normal Distribution | |||||||

7-7. Approximation of Poisson Distribution by a Normal Distribution | |||||||

7-8. The Laws of Large Numbers | |||||||

CHAPTER 8 Continuous Channel without Memory | |||||||

8-1. Definition of Different Entropies | |||||||

8-2. The Nature of Mathematical Difficulties Involved | |||||||

8-3. Infiniteness of Continuous Entropy | |||||||

8-4. The Variability of the Entropy in the Continuous Case with Coordinate Systems | |||||||

8-5. A Measure of Information in the Continuous Case | |||||||

8-6. Maximization of the Entropy of a Continuous Random Variable | |||||||

8-7. Entropy Maximization Problems | |||||||

8-8. Gaussian Noisy Channels | |||||||

8-9. Transmission of Information in the Presence of Additive Noise | |||||||

8-10. Channel Capacity in Presence of Gaussian Additive Noise and Specified Transmitter and Noise Average Power | |||||||

8-11. Relation Between the Entropies of Two Related Random Vari | |||||||

8-12. Note on the Definition of Mutual Information | |||||||

CHAPTER 9 Transmission of Band-limited Signals | |||||||

9-1. Introduction | |||||||

9-2. Entropies of Continuous Multivariate Distributions | |||||||

9-3. Mutual Information of Two Gaussian Random Vectors | |||||||

9-4. A Channel-capacity Theorem for Additive Gaussian Noise | |||||||

9-5. Digression | |||||||

9-6. Sampling Theorem | |||||||

9-7. A Physical Interpretation of the Sampling Theorem | |||||||

9-8. The Concept of a Vector Space | |||||||

9-9. Fourier-series Signal Space | |||||||

9-10. Band-limited Singal Space | |||||||

9-11. Band-limited Ensembles | |||||||

9-12. Entropies of Band-limited Ensemble in Signal Space | |||||||

9-13. A Mathematical Model for Communication of Continuous Signals | |||||||

9-14 Optimal Decoding | |||||||

9-15. A Lower Bound for the Probability of Error | |||||||

9-16. An Upper Bound for the Probability of Error. | |||||||

9-17. Fundamental Theorem of Continuous Memoryless Channels in Presence of Additive Noise | |||||||

9-18. Thomasian's Estimate | |||||||

Part 3 : Schemes with Memory | |||||||

CHAPTER 10 Stochastic Processes | |||||||

10-1. Stochastic Theory | |||||||

10-2. Examples of a Stochastic Process | |||||||

10-3. Moments and Expectations | |||||||

10-4. Stationary Processes | |||||||

10-5. Ergodic Processes | |||||||

10-6. Correlation Coefficients and Correlation Functions | |||||||

10-7. Example of a Normal Stochastic Process | |||||||

10-8. Examples of Computation of Correlation Functions | |||||||

10-9. Some Elementary Properties of Correlation Functions Stationary Processes | |||||||

10-10. Power Spectra and Correlation Functions | |||||||

10-11. Response of Linear Lumped Systems to Ergodic Excitation | |||||||

10-12. Stochastic Limits and Convergence | |||||||

10-13. Stochastic Differentiation and Integration | |||||||

10-14. Gaussian-process Example of a Stationary Process | |||||||

10-15. The Over-all Mathematical Structure of the Stochastic Processes | |||||||

10-16. A Relation between Positive Definite Functions and Theory of Probability | |||||||

CHAPTER 11 Communication under Stochastic Regimes | |||||||

11-1. Stochastic Nature of Communication | |||||||

11-2. Finite Markov Chains | |||||||

11-3. A Basic Theorem on Regular Markov Chains | |||||||

11-4. Entropy of a Simple Markov Chain | |||||||

11-5. Entropy of a Discrete Stationary Source | |||||||

11-6. Discrete Channels with Finite Memory | |||||||

11-7. Connection of the Source and the Discrete Channel with Memory | |||||||

11-8. Connection of a Stationary Source to a Stationary Channel | |||||||

Part 4 : Some Recent Developments | |||||||

CHAPTER 12 The Fundamental Theorem of Information Theory | |||||||

PRELIMINARIES | |||||||

12-1. A Decision Scheme | |||||||

12-2. The Probability of Error in a Decision Scheme | |||||||

12-3. A Relation between Error Probability and Equivocation | |||||||

12-4. The Extension of Discrete Memoryless Noisy Channels | |||||||

FEINSTEIN'S PROOF | |||||||

12-5. On Certain Random Variables Associated with a Communication S | |||||||

12-6. Feinstein's Lemma | |||||||

12-7. Completion of the Proof | |||||||

SHANNON'S PROOF | |||||||

12-8. Ensemble Codes | |||||||

12-9. A Relation between Transinformation and Error Probability | |||||||

12-10. An Exponential Bound for Error Probability | |||||||

WOLFOWITZ'S PROOF | |||||||

12-11. The Code Book | |||||||

12-12. A Lemma and Its Application | |||||||

12-13. Estimation of Bounds | |||||||

12-14. Completion of Wolfowitz's Proof | |||||||

CHAPTER 13 Group Codes | |||||||

13-1. Introduction | |||||||

13-2. The Concept of a Group | |||||||

13-3. Fields and Rings | |||||||

13-4. Algebra for Binary n-Digit Words | |||||||

13-5. Hammings Codes | |||||||

13-6. Group Codes | |||||||

13-7. A Detection Scheme for Group Codes | |||||||

13-8. Slepian's Technique for Single-error Correcting Group Codes | |||||||

13-9. Further Notes on Group Codes | |||||||

13-10. Some Bounds on the Number of Words in a Systematic Code | |||||||

APPENDIX Additional Notes and Tables | |||||||

N-1 The Gambler with a Private Wire | |||||||

N-2 Some Remarks on Sampling Theorem | |||||||

N-3 Analytic Signals and the Uncertainty Relation | |||||||

N-4 Elias's Proof of the Fundamental Theorem for BSC | |||||||

N-5 Further Remarks oil Coding Theory | |||||||

N-6 Partial Ordering of Channels | |||||||

N-7 Information Theory and Radar Problems | |||||||

T-1 Normal Probability Integral | |||||||

T-2 Normal Distributions | |||||||

T-3 A Summary of Some Common Probability Functions | |||||||

T-4 Probability of No Error for Best Group Code | |||||||

T-5 Parity-check Rules for Best Group Alphabets | |||||||

T-6 Logarithms to the Base 2 | |||||||

T-7 Entropy of a Discrete Binary Source | |||||||

BIBLIOGRAPHY | |||||||

NAME INDEX | |||||||

SUBJECT INDEX |

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