BLIND CROSSTALK CANCELLATION FOR DMT SYSTEMS. Nadeem Ahmed Nirmal Warke ECE Dept. DSPS R&D Center Rice University Texas Instruments. Motivation. ADSL. POTS. VDSL. ISDN. HDSL. 10 kHz. 100 kHz. 1 MHz. 10 MHz. 100 MHz.
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Nadeem Ahmed Nirmal Warke
ECE Dept. DSPS R&D Center
Rice University Texas Instruments
FDD modems virtually eliminate self-NEXT.
Main source of crosstalk comes from other services (i.e. HDSL, T1, etc), which are much stronger than self-FEXT.DSL System Model
2 => main band 1 => excess band
From 1 into 2
From 11 into 5