Annotated edit history of
ADSL2 version 1, including all changes.
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DanielLawson |
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[ADSL2] is the successor to ADSL. |
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Rough notes for now. Differences include: |
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* Different modulation. ADSL2 uses a "16-state trellis filter and 1-bit QAM constellation" to improve datarates on high SNR links |
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* Variable length framing information, which can be used to reduce overhead in low-performance (<128kbit) connections |
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* Seamless power cutback. ADSl2 makes use of different power levels to reduce noise and crosstalk |
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* Line bonding for higher datarates |