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DSL Advances by Peter J. Silverman, John M. Cioffi, Massimo Sorbara, Thomas Starr

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Chapter 4. HDSL and Second-Generation HDSL (HDSL2)

4.1 Review of First-Generation HDSL

4.1.1 Dual Duplex Architecture

4.1.2 Frame Structure

4.1.3 HDSL Transmitter Structure

4.1.4 HDSL Frame Structure

4.1.5 Scrambler

4.1.6 Bit-to-Symbol Mapping

4.1.7 2B1Q Spectral Shaper

4.1.8 2B1Q HDSL Transceiver Structure

4.1.9 CAP-based HDSL

4.2 Second-Generation HDSL(HDSL2)

4.2.1 Performance Objectives for HDSL2

4.2.2 Evolution of the Modulation Method for HDSL2

4.2.3 System Reference Model

4.2.4 HDSL2 Framing

4.2.5 Core Transceiver Structure

4.2.6 Scrambler

4.2.7 Trellis Encoder

4.2.8 Channel Precoder

4.2.9 Spectral Shaper

4.3 Initialization

4.4 HDSL4 and SHDSL

The origin of the high-rate digital subscriber line (HDSL) began in the late 1980s after the successful demonstration ...

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