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Essentials of Modern Telecommunications Systems.
In today's competitive and fast-changing telecom industry, most professionals find themselves in the difficult situation of having to sacrifice keeping on top of the latest technology because they are striving to meet another round of high-pressure deadlines. Essentials of Modern Telecommunicat...
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Norwood :
Artech House,
2004.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Bookmarks; Contents; Foreword; Preface; Acknowledgments; 1. The Communication Channel and the Communication Network 1; 1.1 Development of Telecommunications 1; 1.2 Introduction to Telecommunications 4; 1.3 Signals in Communications 5; 1.4 Characteristics of the Communications Channel 10; 1.5 The Communications Network 22; 1.6 The Future 24; 1.7 Enabling Technologies 27; 2. Digital Telephony 29; 2.1 From Analog to Digital 29; 2.2 Advantages of Digital Techniques 31; 2.3 Disadvantages of Digital Techniques 34; 2.4 PCM Techniques and Standards 35; 2.5 Low Bit-Rate Voice Coding 44.
- 2.6 Voice over the Internet 562.7 Devices for Digital Telephony 73; 3. Switching and Signaling Systems 99; 3.1 Evolution of Switching Systems 99; 3.2 Essentials of Switching, Signaling, and Control 100; 3.3 Principles of Switching 101; 3.4 Circuit Switching and Packet Switching 105; 3.5 Signaling Systems 107; 3.6 Digital Exchanges 112; 3.7 Private Branch Exchanges and Key Phone Systems 119; 3.8 Merging Data and Voice 121; 3.9 Packet Switching Systems 121; 3.10 Switch Fabric Interfaces and ICs 137; 3.11 Optics and the Future 139; 4. Cellular Systems 143; 4.1 Introduction 143.
- 4.2 Advantages and Constraints of Wireless Access 1434.3 Basic Components of Wireless Access 144; 4.4 Cellular Systems as an Access Technology 145; 4.5 Cellular System Operation 151; 4.6 The Cellular Radio Environment 155; 4.7 Frequency Assignment and Multiple Access Schemes for Cellular Systems 163; 4.8 Capacity of Cellular Systems 168; 4.9 First Generation Cellular Systems and Standards 169; 4.10 Second Generation Digital Cellular Systems 172; 4.11 Third Generation Mobile Systems 182; 4.12 Mobile Device Hardware, Architecture, and Implementation 188; 4.13 Technological Trends 192.
- 5. Fixed Wireless Access 1975.1 Introduction 197; 5.2 Access Technologies 198; 5.3 WLL Technologies Primarily for Voice Provision 200; 5.4 Broadband Fixed Wireless Access Systems 207; 5.5 Enabling Technologies 217; 5.6 The Future 220; 6. Digital Subscriber Loop 223; 6.1 Introduction 223; 6.2 Signal Impairments and the Channel Length 223; 6.3 DSL Techniques 229; 6.4 Different Versions of DSL 239; 6.5 Spectral Considerations in DSL 247; 6.6 Operation of DSL 250; 6.7 DSL Chip Sets 254; 6.8 The ISO Seven-Layer Model, ATM, and DSL Systems 264; 6.9 End-to-End ADSL Systems 264; 6.10 Standards 265.
- 7. Transmission Techniques 2717.1 Introduction 271; 7.2 Transmission Line Behavior 271; 7.3 Decibel Measurements 273; 7.4 Basic TDM Techniques and Digital Transmission Systems 274; 7.5 Plesiochronous Higher-Order Digital Multiplexing or PDH 279; 7.6 Synchronous Digital Multiplexing 281; 7.7 Optical Networks 287; 7.8 The Future 290; 8. Telecommunication Systems Testing 293; 8.1 Introduction 293; 8.2 Measurement Areas 293; 8.3 Measurement of Power Levels in Telecommunications Circuits 294; 8.4 High-Frequency Power Measurements 296.