Implementation And Applications of Xdsl Technology Book

POTS PROTECTION AND VOICE-DATA MULTIPLEXING AND SEPARATION—
xDSL SPLITTERS
Introduction to the Splitter Function
Physical Location of the Splitter Function
Low Pass Filter for POTS—Steady-State Behavior
Low Pass Filter for POTS—Transient Behavior
Low Pass Filter for ISDN
Low Pass Combi-Filter for POTS and ISDN
High Pass Filter
Passive Design Techniques
Active Design
Conclusion
DSL SPECIFIC INTEGRATED CIRCUITS: A SILICON PERSPECTIVE
Fifteen Bumpy Years of DSL IC Developments
A Preliminary Chipset Complexity Assessment from System Specifications
Chipset Implementations
CO and CPE Products
Conclusions
Acknowledgments
ANALOG FRONT-END
Implementation
DSL System Parameters That Drive Analog Design
Transmitter Noise Budget
Receiver Noise Budget
Digital-to-Analog Converter
Filtering
Line-Coupling Transformer
Line Driver
Hybrid
Echo Cancellation
Receive Amplifier—Programmable Gain Amplifier (PGA)
Analog-to-Digital Converter
LOCAL LOOP SIMULATION AND SIMULATORS
History and Background of Loop Simulators
Applications of Wideband Loop Simulators
Simulator Characteristics
Derivation of Equations
Different Types of Loop Simulators
Nonelectrical Characteristics of the Simulator
Recent Advances in Loop Simulator Design and Specifications
EVOLVING TEST AND PROVISIONING FROM POTS TO xDSL SERVICES
Line Test for POTS
Use of POTS Testing for DSL Services
Access Issues for DSL Testing
Testing the Next Generation Network
Introduction to Reflectometry Measurement
DSL-Specific Line Test
Summary
DSL PLANNING RULES,
LINE QUALIFICATION,
AND DEPLOYMENT ISSUES
Line Qualification for DSL Services
Factors Affecting the Successful Deployment of DSL Systems
Conclusion
SPECTRUM MANAGEMENT
Common Features
American Spectrum Management
Spectrum Management in Europe
Summary
Appendix on Spectral Compatibility Calculation
DYNAMIC SPECTRUM MANAGEMENT
History of DSM
Level of Coordination in DSM
Information Necessary for DSM Application of DSM to Other Systems
DSL ARCHITECTURE: OPPORTUNITIES FOR DIFFERENTIATION AND EVOLUTION
Early DSL Access Architectures
Evolution of the Architecture and DSL Delivered Services
Concluding Comments
DSLAM ARCHITECTURE AND FUNCTIONALITY
Genesis of the DSLAM
DSLAM Functionality
DSLAM Architecture Considerations
ATM DSLAMs
IP DSLAMs
DSLAM—Continuous Evolution
OPERATIONS, ADMINISTRATION,
AND MAINTENANCE
OAM Concepts General System Architecture Layer Model Controlling and Reporting OAM
SECURITY
Scope
What Are We Worried About?
The “Always-On” versus “Dial-Up”
Network Connection High-Level Security Requirements Currently Deployed Security Solutions Coming Attractions Sample Next-Generation DSL Security Framework
DATA PACKETS TRANSPORT OVER DSL
Overview
Key Requirements for Transport of Data Packets Functional Model of Packet Transport
VOICE OVER DSL: CVODSL,
VoATM, AND VoIP
VoDSL Reference Architecture General Requirements for VoDSL Lifeline Service Channelized Voice over DSL VoATM over DSL VoIP over DSL
BONDED DSL
ATM-Based Bonding Ethernet-Based Bonding
MULTI-LINE MIMO DSL SYSTEM ARCHITECTURES
The Challenges of Crosstalk for Single-Line and Multiline Systems
FEXT Mitigation Architectures Point-to-Multipoint Architectures Performance Conclusions
DSL STANDARDIZATION
The DSL Standards Organizations Symmetric DSL ADSL
VDSL Handshake Annex: History of Standardization Acronyms