Understanding Digital Subscriber Line Technology, 1st edition

  • Thomas Starr
  • John M. Cioffi
  • Peter J. Silverman

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DSL technologies explained by the experts who created the standards

The most complete coverage anywhere: ISDN, HDSL, ADSL, and VDSL

The basic infrastructure for the global broadband network of the future is already in place in most homes and offices. Ordinary telephone lines can provide low-cost, high-volume access to the exploding world of telecommunications services that users increasingly rely on.

Now, leading experts in the field have come together to share their insights in a single volume, explaining the past, present, and future of all the DSL technologies. Understanding Digital Subscriber Line Technology:

  • Covers the entire DSL family, from ISDN at 144 kb/s to VDSL at 52 Mb/s
  • Details DSL at all layers of protocol, with special emphasis on the physical layer
  • Discusses applications from both provider and end-user points of view
  • Gives an insider's view of the telecommunications standards process

Key standards are explained, including transmission line characteristics, data rates, modulation and coding methods, operations procedures, transconvergence layers, protocols, and network architectures.

With its inside track and extensive level of detail, Understanding Digital Subscriber Line Technology will be indispensable to telecom and datacom engineers at every level. It also offers a comprehensible explanation of issues in this growing field to managers, marketing experts, and consumers of DSL technology.

Table of contents

1. DSL Fundamentals.

Alternatives to DSLs: Fiber, Wireless, and Coax. Worldwide Extent. Voice-Band Modems and DSLs. Transmission Modes. DSL Terminology. Rate Versus Reach. Crosstalk. Enabling and Disabling Forces. Applications. Evolution of Digital Transmission.

2. Types of DSLs.

DSL Design Margin. DSL Precursors. Basic Rate ISDN. HDSL. ADSL. VDSL.

3. Twisted-Pair Transmission.

Twisted-Wire-Pair Origins. Telephone Network and Loop Plant Characteristics. Line Powering. Sealing Current. Transmission Line Characterization. Noises. Spectral Compatibility. More Two-Port Networks. Three-Port Networks for DSLs. References.

4. Comparison with Other Media.

Fiber-to-the-Home. Coax and Hybrid Fiber Coax. Wireless Alternatives. Satellite Services. References.

5. Transmission Duplexing Methods.

Four-Wire Duplexing. Echo Cancellation. Time-Division Duplexing. Frequency-Division Multiplexing. References.

6. Basic Digital Transmission Methods.

Basic Modulation and Demodulation. Baseband Codes. Passband Codes. References.

7. Loop Impairments, Solutions, and DMT.

Intersymbol Interference. Multichannel Line Codes. Trellis Coding. Error Control. References.

8. Initialization, Timing and Performance.

Initialization Methods. Adaptation of Receiver and Transmitter. Measurement of Performance. Timing Recovery Methods. References.

9. Operations, Administration Maintenance, and Provisioning.

OAM&P Features. Loop Qualification.

10. DSL in the Context of the ISO Reference Model.

The ISO Model. Theory and Reality. The Internet Protocol Suite. ATM in the Seven-Layer Model.

11. ADSL: The Bit Pump.

ADSL System Reference Model. ATU-C Reference Model. ATU-R Reference Model. Specific Configurations to Support ATM. Framing. Operations and Maintenance. Initialization. Reference.

12. ATM Transmission Convergence on ADSL.

Functions of ATM Transmission Convergence. Transmission Convergence in an ADSL Environment. Reference.

13. Frame-Based Protocols over ADSL.

PPP over a Frame-Based ADSL. FUNI over ADSL. Reference.

14. ADSL in the Context of End-to-End Systems.

An Overview of a Generic DSL Architecture. Potential ADSL Services and the Service Requirements. Specific Architectures for Deploying ADSL in Different Business Models. Several ADSL Architectures. References.

15. Network Architecture and Regulation.

Private Line. Circuit Switched. Packet Switched. ATM. Remote Terminal. Competitive Data Access Alternatives. Regulation.

16. Standards.

ITU. Committee T1. ETSI. ADSL Forum. ATM Forum. DAVIC. IETF. EIA/TIA. IEEE. The Value of Standards and Participation in Their Development. Standards Process.

Appendix A: Glossary.

Appendix B: Selected Standards and Specifications.

Appendix C: Selected T1E1.4 Contributions and ADSL Forum Technical Reports (found on website).


Published by Pearson (December 29th 1998) - Copyright © 1999