Djafar K. Mynbaev, Lowell L. Scheiner

Essentials of Modern Communications (eBook, ePUB)

• Format: ePub

Produktbeschreibung

Explore Modern Communications and Understand Principles of Operations, Appropriate Technologies, and Elements of Design of Communication Systems Modern society requires a different set of communication systems than has any previous generation. To maintain and improve the contemporary communication systems that meet ever-changing requirements, engineers need to know how to recognize and solve cardinal problems. In Essentials of Modern Communications, readers will learn how modern communication has expanded and will discover where it is likely to go in the future. By discussing the fundamental principles, methods, and techniques used in various communication systems, this book helps engineers assess, troubleshoot, and fix problems that are likely to occur. In this reference, readers will learn about topics like: * How communication systems respond in time and frequency domains * Principles of analog and digital modulations * Application of spectral analysis to modern communication systems based on the Fourier series and Fourier transform * Specific examples and problems, with discussions around their optimal solutions, limitations, and applications * Approaches to solving the concrete engineering problems of modern communications based on critical, logical, creative, and out-of-box thinking For readers looking for a resource on the fundamentals of modern communications and the possible issues they face, Essentials of Modern Communications is instrumental in educating on real-life problems that engineering students and professionals are likely to encounter.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 1088
• Erscheinungstermin: 14. Juli 2020
• Englisch
• ISBN-13: 9781119521457
• Artikelnr.: 59848358

Autorenporträt

DJAFAR K. MYNBAEV, PHD, is a professor at the New York City College of Technology (CUNY) Electrical and Telecommunications Engineering Technology Department. He has spent a significant part of his career working at telecommunications in general and optical communications in particular fields and has published more than 100 papers on these subjects. He currently holds over two dozen patents and is a well-known speaker at conferences worldwide. In 2001, he, with Lowell L. Scheiner, published a book entitled Fiber-Optic Communications Technology. LOWELL L. SCHEINER was an acclaimed writer and editor in the engineering and technology industries. He worked for numerous publications concerning technology and design in his main capacity and at major corporations as a public relations consultant. Lately, he was a professor at NYU Tandon School of Engineering.

Inhaltsangabe

About the Authors xxi

Preface xxiii

Acknowledgments xxvii

1 Modern Communications: What It Is? 1

Objectives and Outcomes of Chapter 1 1

1.1 What and Why of Modern Communications 4

Objectives and Outcomes of Section 1.1 4

1.1.1 What is Modern Communications? 5

1.1.2 General Block Diagram of a Communication System 6

1.1.3 Operation of a Communication System 7

1.1.4 Why DoWe Need Modern Communications? 8

1.1.5 From Today to Tomorrow - Two Examples 9

1.1.5.1 The Internet of Things (IoT) 10

1.1.5.2 Data Centers 12

Questions and Problems for Section 1.1 13

1.2 Communication Technology on a Fast Track 16

Objectives and Outcomes of Section 1.2 16

Sidebar 1.2.S.1 Brief Notes on History of Telegraph, Telephone, Radio, and Television 22

1.2.1 The Internet 28

1.2.1.1 Basics of Networks 28

1.2.1.2 The Internet: From a Point-to-Point Link to a Network of Networks 37

1.2.2 Optical Communications 42

1.2.2.1 Introduction to Optical Communications 43

1.2.2.2 Developments in Optical Communications: From First Inventions to Modern Advances 46

1.2.3 Wireless Communications 49

1.2.3.1 Introduction to Wireless Communications 49

1.2.3.2 Contemporary Wireless Communications Technologies 54

1.2.3.3 Mobile Cellular Communications 57

1.2.4 Satellite Communications 59

1.2.4.1 Historical Notes 59

1.2.4.2 Principle of Operation of Satellite Communication Systems 60

1.2.4.3 Satellite Orbits 62

Questions and Problems for Section 1.2 67

1.3 Fundamental Laws and Principles of Modern Communications 75

1.3.1 Fundamental Laws of Modern Communications 75

1.3.1.1 Hartley's Information Law 75

1.3.1.2 Signal Bandwidth and Transmission Bandwidth from the Transmission Standpoint 76

1.3.1.3 Bandwidth and Bit Rate, Nyquist's Formula, and Hartley's Capacity Law 77

1.3.1.4 Shannon's Law (Limit) 79

1.3.1.5 More Clarifications of the Shannon Law 82

1.3.1.6 The Shannon Law for Digital Communications 83

1.3.2 Fundamental Principles of Modern Communications 86

1.3.2.1 Channel Capacity, Bandwidth, and Carrier Frequency 86

1.3.2.2 Bandwidth-Length Product 90

1.3.2.3 Power-Bandwidth Trade-Off 91

1.3.2.4 Spectral Efficiency and Transmission Technology 92

1.3.2.5 Bit Rate vs. Bandwidth in Digital Transmission 93

1.3.3 Laws, Principles, and Models - Importance, Limitations, and Applications 94

1.3.3.1 Limitations and Applications of the Laws and Principles 94

1.3.3.2 Models 96

1.3.3.3 Modeling and Simulation 98

Questions and Problems for Section 1.3 99

2 Analog Signals and Analog Transmission 103

Objectives and Outcomes of Chapter 2 103

2.1 Analog Signals - Basics 104

Objectives and Outcomes of Section 2.1 104

2.1.1 Definitions 104

2.1.1.1 Waveforms 104

2.1.1.2 Analog and Digital Signals 108

2.1.2 Sinusoidal Signal 110

2.1.2.1 The Waveform of a Sinusoidal Signal 110

2.1.2.2 Period and Frequency 111

2.1.2.3 Frequency, Radian (Angular) Frequency and Angle 115

2.1.2.4 Phase Shift (Initial Phase) 117

2.1.2.5 Amplitude 121

Questions and Problems for Section 2.1 125

2.2 Analog Signals - Introduction 129

Objectives and Outcomes of Section 2.2 129

2.2.1 More About a Sinusoidal Signal 130

2.2.1.1 Considering All T