Research Issues in VDSL

• How to cancel cross-talk?

• How to remove alien noise?

• • Alien Noise is the crosstalk typically from non-VDSL users, using the same bundle.

• How to allocate power across different tones, also called Optimal Spectrum Balancing

• Key parameters:

• • To get the best performance ( Data Rate)
  • Minimize the computational complexity
  • Involves efficient receiver and transmitter design