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Table of contents
Slide 1
Communications
Milestones in Communications
Internet
Speed
Broadband Access
Digital Subscriber Line (DSL)
Wireless Access
DSL
DMT DSL
Slide 11
Lets Focus on Upstream (US)
Upstream Mathematical Model – tone wise
Crosstalk Characteristics
Performance loss due to FEXT *
Research Issues in VDSL
US Cross-talk Cancellation System Overview
DS Cross-talk Cancellation
Typical Complexity Numbers
Full FEXT Cancellation
Partial Cancellation
Spectrum Balancing
Various Contributions
Contributions: Off Diagonal operators at the CO to cancel crosstalk.
Contributions: Partial Cancellation
Contributions: SAGE
Future Directions
Conclusion