Cargando…

Broadband local loops for high-speed Internet access /

If you are a an engineer working for a telecommunications carrier or Internet service provider, or a manufacturer or student interested in communication technology and digital communications, this comprehensive overview of broadband access technologies is essential reading for you. The book offers y...

Descripción completa

Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Gagnaire, Maurice
Formato: Electrónico eBook
Idioma:Inglés
Francés
Publicado: Boston : Artech House, ©2003.
Colección:Artech House telecommunications library.
Temas:
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Broadband Local Loops for High-Speed Internet Access
  • Contents vii
  • Foreward xvii
  • Preface xix
  • Motivation xix
  • Intended Audience and Objectives xx
  • Acknowledgments xxi
  • Introduction xxiii
  • 1 Telecommunications Network Evolution 1
  • 1.1 Introduction 1
  • 1.2 The Internet and Its Access Modes 1
  • 1.3 QoS Provisioning in Data Networks 6
  • 1.4 IP-VPNs 16
  • 1.5 Conclusion and Perspectives 18
  • References 18
  • Selected Bibliography 19
  • 2 Existing Infrastructure and Dial-Up Modems 21
  • 2.1 Introduction 21
  • 2.2 Dial-Up Modems 22
  • 2.3 Access to the Telephone System 31.
  • 2.4 Leased Lines and Basic Access to Narrowband ISDN 33
  • 2.5 V5 Interface and Unbundling 40
  • 2.6 Digital Loop Carrier and Carrier Serving Area 41
  • 2.7 Dial-Up Modems and Erlang's Formula 43
  • 2.8 Conclusion and Perspective 44
  • References 44
  • Selected Bibliography 44
  • 3 Unbundling Characteristics and Alternative Technologies 45
  • 3.1 Introduction 45
  • 3.2 The Interconnection Concept 46
  • 3.3 The Unbundling Concept 49
  • 3.4 The "Churn" Problem 56
  • 3.5 Colocation Status in Europe and in North America 58
  • 3.6 Alternative Technologies for the Local Loop 60
  • 3.7 Cable Networks 63.
  • 3.8 PLC 75
  • 3.9 Conclusion and Perspectives 76
  • References 77
  • Selected Bibliography 77
  • 4 Twisted Pair Electrical Characteristics 79
  • 4.1 Introduction 79
  • 4.2 Electrical Characteristics of a Copper Pair 80
  • 4.3 Shannon's Capacity of a Twisted Copper Pair 86
  • 4.4 Electrical Characteristics of a Subscriber Line 88
  • 4.5 Impact of NEXT on Shannon's Capacity 100
  • 4.6 Conclusion and Perspectives 101
  • References 102
  • Selected Bibliography 103
  • 5 HDSL and Its Variants 105
  • 5.1 Introduction 105
  • 5.2 HDSL Modems 106
  • 5.3 HDSL Framing 115
  • 5.4 HDSL Variants 119.
  • 5.5 Conclusion and Perspectives 125
  • References 125
  • Selected Bibliography 126
  • ADSL Physical Layer 127
  • 6.1 Introduction 127
  • 6.2 Reference Model 133
  • 6.3 NEXT Predominance Under High Frequencies 136
  • 6.4 Modulation Techniques 138
  • 6.5 ADSL System Configuration 157
  • 6.6 DMT-ADSL Modulator 158
  • 6.7 Reed-Solomon Encoding 167
  • 6.8 Interleaver 169
  • 6.9 Convolutional Coder 171
  • 6.10 DMT-ADSL Receiver 178
  • 6.11 Line Initialization 186
  • 6.12 Conclusion and Perspectives 189
  • References 191
  • Selected Bibliography 192
  • 7 G.lite and VDSL 193
  • 7.1 Introduction 193.
  • 7.2 G.lite 193
  • 7.3 VDSL 203
  • 7.4 Conclusion and Perspectives 224
  • References 225
  • 8 DSLAM and Home Network 227
  • 8.1 Introduction 227
  • 8.2 DSLAM 228
  • 8.3 Home Networking 231
  • 8.4 Conclusion and Perspectives 242
  • References 243
  • Selected Bibliography 243
  • 9 Protocol Architecture 245
  • 9.1 Introduction 245
  • 9.2 Why the ATM Technique in the Local Loop? 245
  • 9.3 Physical Layer ADSL Data Formatting 246
  • 9.4 The PPP Protocol 252
  • 9.5 NAS Servers and the RADIUS Protocol 256
  • 9.6 The L2TP Protocol 258
  • 9.7 ATM-Based ADSL Protocol Architectures 266.