ADSL

About this class

This course introduces and explores the realm of Digital Subscriber Lines, their market, performance and technology. There are hundreds of millions of local telephone loops in the world and these are the lines that xDSL technologies enable to deliver high speed data. There is a complete and evolving family of technologies in the DSL set and this course, whilst describing all of them, is focussed mainly on Asymetric DSL.

What prerequisites are required

There are no pre-requisites for attending this course.

Contents of this class

• Introduction & Background
• Information and Services
• Conferencing and Meeting Switch Congestion
• xDSL Business Case
• xDSL Markets
• Copper Wire and the 4KHz Limit
• Typical Product Offerings
• xDSL Technologies
• Distance can be a Problem
• Terminology
• Splitters
• ISDN
• HDSL
• HDSLVersion 2
• G.SHDSL
• ADSL
• RADSL
• VDSL
• ADSL. Lite
• G ADSL.Lite
• Splitterless Operation
• Microfilters
• ADSL Architecture
• Why is ADSL Asymetric?
• Standards and the Forum
• Network Model

• Technologies

• and Modulation
• ADSL Multiplexed Channels
• Transport Capacity
• The Line Codes CAP versus DMT
• Signalling and Management
• ADSL Framing
• Frames and Superframes
• Frame Structure
• Fast and Interleaved Data
• An ATM Refresher
• IP and ADSL
• The DSL Access Mux (DSLAM)
• DSLAM Requirements
• Control and Management
• ADSL Applications
• Ethernets Video Streaming
• Voice over DSL
• Delay A
• DSL and ISDN
• VeDSL
• VoDSL
• Sharing the Line
• Unbundling Strategies
• The Regulators Role
• Asymmetry
• Different Ways of Unbundling
• xDSL Alternatives and Competition
• Cable Modems
• Power Cables
• Wireless Local Loop
• Low Earth Orbit Satellites
• Broadband Wireless Access