Telecommunication switching systems and networks 英文版PDF电子书下载

Chapter 1 Introduction 1

1.1 Evolution of Telecommunications 1

1.2 Simple Telephone Communication 5

1.3 Basics of a Switching System 8

1.4 Manual Switching System 11

1.5 Major Telecommunication Networks 15

Further Reading 18

Exercises 18

Chapter 2 Strowger Switching Systems 20

2.1 Rotary Dial Telephone 20

2.2 Signalling Tones 23

2.3 Strowger Switching Components 25

2.4 Step-by-Step Switching 29

2.5 Design Parameters 33

2.6 100-line Switching System 34

2.6.1 Design 1 35

2.6.2 Design 2 36

2.6.3 Design 3 36

2.6.4 Design 4 37

2.6.5 Design 5 38

2.7 1000-line Blocking Exchange 39

2.8 10,000-line Exchange 42

Further Reading 42

Exercises 42

Chapter 3 Crossbar Switching 44

3.1 Principles of Common Control 44

3.2 Touch Tone Dial Telephone 48

3.2.1 Design Considerations 49

3.3 Principles of Crossbar Switching 52

3.4 Crossbar Switch Configurations 54

3.5 Crosspoint Technology 56

3.6 Crossbar Exchange Organisation 58

Further Reading 59

Exercises 59

Chapter 4 Electronic Space Division Switching 81

4.1 Stored Program Control 61

4.2 Centralised SPC 62

4.3 Distributed SPC 68

4.3.1 Level 3 Processing 68

4.3.2 Level 2 Processing 69

4.3.3 Level 1 Processing 70

4.4 Software Architecture 71

4.5 Application Software 79

4.6 Enhanced Services 84

4.7 Two-Stage Networks 89

4.8 Three-Stage Networks 92

4.9 n-Stage Networks 96

Further Reading 97

Exercises 97

Chapter 5 Speech Digitisation and Transmission 99

5.1 Sampling 99

5.2 Quantisation and Binary Coding 101

5.3 Quantisation Noise 103

5.4 Companding 105

5.5 Differential Coding 109

5.6 Vocoders 111

5.7 Pulse Transmission 112

5.8 Line Coding 119

5.9 Time Division Multiplexing 123

Further Reading 126

Exercises 126

Chapter 6 Time Division Switching 128

6.1 Basic Time Division Space Switching 128

6.2 Basic Time Division Time Switching 133

6.3 Time Multiplexed Space Switching 140

6.4 Time Multiplexed Time Switching 144

6.5 Combination Switching 150

6.6 Three-Stage Combination Switching 152

6.7 n-Stage Combination Switching 155

Further Reading 157

Exercises 157

Chapter 7 Optical Fibre Systems 159

7.1 Types of Optical Fibres 159

7.2 Fibre Optic Transmission 162

7.3 Optical Sources 166

7.3.1 Light Emitting Diodes 168

7.3.2 Laser Diodes 172

7.4 Optical Detectors 175

7.4.1 p-i-n Photodiode 178

7.4.2 Avalanche Photodiode 180

7.5 Power Budget Analysis 183

7.6 Telecommunication Applications 187

Further Reading 189

Exercises 189

Chapter 8 Traffic Engineering 191

8.1 Network Traffic Load and Parameters 191

8.2 Grade of Service and Blocking Probability 195

8.3 Modelling Switching Systems 196

8.3.1 Markov Processes 198

8.3.2 Birth-death Processes 199

8.4 Incoming Traffic and Service Time Characterisation 201

8.5 Blocking Models and Loss Estimates 205

8.5.1 Lost Calls Cleared System with Infinite Sources 205

8.5.2 Lost Calls Cleared System with Finite Subscribers 208

8.5.3 Lost Calls Returned System 212

8.5.4 Lost Calls Held System 212

8.6 Delay Systems 213

Further Reading 218

Exercises 218

Chapter 9 Telephone Networks 221

9.1 Subscriber Loop Systems 221

9.2 Switching Hierarchy and Routing 227

9.3 Transmission Plan 229

9.4 Transmission Systems 233

9.4.1 Ionospheric Communication 233

9.4.2 Microwave Communication 237

9.4.3 Tropospheric Scatter Communication 244

9.4.4 Satellite Communications 245

9.4.5 Coaxial Cable Transmission 249

9.5 Numbering Plan 252

9.6 Charging Plan 256

9.7 Signalling Techniques 259

9.8 Inchannel Signalling 263

9.9 Common Channel Signalling 268

9.10 Cellular Mobile Telephony 272

Further Reading 274

Exercises 274

Chapter 10 Data Networks 277

10.1 Data Transmission in PSTNs 278

10.1.1 Data Rates in PSTNs 279

10.1.2 Modems 281

10.2 Switching Techniques for Data Transmission 283

10.2.1 Circuit Switching 284

10.2.2 Store and Forward Switching 287

10.3 Data Communication Architecture 291

10.3.1 ISO-OSI Reference Model 292

10.4 Link-to-link Layers 297

10.4.1 Physical Layer 298

10.4.2 Data Link Layer 298

10.4.3 Network Layer 304

10.5 End-to-End Layers 306

10.5.1 Transport Layer 306

10.5.2 Session Layer 307

10.5.3 Presentation Layer 308

10.5.4 Application Layer 311

10.6 Satellite Based Data Networks 313

10.7 Local Area Networks 317

10.7.1 LAN Technologies 318

10.7.2 Multiple Access Bus LAN 319

10.7.3 Token Passing Ring LAN 323

10.7.4 Token Passing Bus LAN 325

10.8 Metropolitan Area Networks 326

10.9 Fibre Optic Networks 328

10.10 Data Network Standards 332

10.11 Protocol Stacks 337

10.11.1 Manufacturing Automation Protocol(MAP) 337

10.11.2 Technical and Office Protocol(TOP) 339

10.11.3 Library Automation Protocol(LAP) 339

10.12 Internetworking 339

Further Reading 341

Exercises 341

Chapter 11 Integrated Services Digital Network 345

11.1 Motivation for ISDN 346

11.2 New Services 347

11.2.1 Videotex 348

11.2.2 Electronic Mail 348

11.2.3 Facsimile 353

11.2.4 Teletex 355

11.2.5 Database Access 356

11.3 Network and Protocol Architecture 357

11.4 Transmission Channels 362

11.5 User-Network Interfaces 363

11.5.1 Functional Grouping and Reference Points 365

11.6 Signalling 366

11.6.1 User Level Signalling 367

11.6.2 Network Level Signalling 368

11.7 Numbering and Addressing 370

11.7.1 Address Structure 370

11.8 Service Characterisation 371

11.9 Interworking 374

11.9.1 Numbering Interworking 376

11.10 ISDN Standards 377

11.11 Expert Systems in ISDN 380

11.11.1 Components of an Expert System 382

11.11.2 Example of an Expert System 384

11.12 Broadband ISDN 385

11.12.1 Broadband ISDN Architecture 385

11.12.2 Broadband ISDN Protocols 387

Further Reading 388

Exercises 388

Chapter 12 Asynchronous Transfer Mode 391

12.1 Protocol Architecture 391

12.2 ATM Logical Connections 392

12.2.1 Virtual Channel Connection Uses 392

12.2.2 Virtual Path/Virtual Channel Characteristics 394

12.2.3 Control Signalling 394

12.3 ATM Cells 395

12.3.1 Header Format 395

12.3.2 Generic Flow Control 397

12.3.3 Header Error Control 398

12.4 Transmission of ATM Cells 399

12.4.1 Cell-Based Physical Layer 399

12.4.2 SDH-Based Physical Layer 400

12.5 ATM Service Categories 402

12.5.1 Real-Time Services 402

12.5.2 Non-Real-Time Services 403

Chapter 13 Softswitch and Next Generation Network(NGN) 404

13.1 Softswitch 404

13.2 Next Generation Networking 404

13.2.1 Description 404

13.2.2 Underlying technology components 405

13.2.3 NGN Functional Architecture 406

13.3 Applications 407

Answers to Selected Exercises 408