Methods of upstream power backoff on very high speed digital subscriber lines

  • Authors:

  • K. S. Jacobsen

  • Affiliations:

  • Texas Instrum. Inc.

  • Venue:
  • IEEE Communications Magazine
  • Year:
  • 2001

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Abstract

This article describes the near-far problem in the upstream direction of VDSL, which results when the lengths of VDSL loops in a binder vary significantly. Methods of upstream power backoff to mitigate the near-far problem are then described. Simulation results are presented, and the performances of the methods are discussed