Iterative power pricing for distributed spectrum coordination in DSL

Yair Noam, Amir Leshem*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


In this letter we propose a novel distributed technique for dynamic spectrum management of DSL lines. The proposed method generalizes several known techniques, by imposing pricing for use of spectrum. We propose a simple mechanism that allows each line to choose an appropriate pricing function independently of the other lines. Finally, by incorporating a total power constraint, the algorithm is capable of self-correcting an overly ambitious pricing function. We also provide simulated examples based on measured DSL lines.

Original languageAmerican English
Pages (from-to)948-953
Number of pages6
JournalIEEE Transactions on Communications
Issue number4
StatePublished - 2009
Externally publishedYes

Bibliographical note

Funding Information:
This research was partially supported by a grant from the Israeli MOTC, as part of the iSMART consortium; by a fellowship from The Yitzhak and Chaya Weinstein Research Institute for Signal Processing at Tel-Aviv University, and by the Dutch Science and Technology Foundation under grant STW 10459. The authors would like to thank the anonymous reviewers for comments that significantly improved the quality of the paper. Digital Object Identifier 10.1109/TCOMM.2009.04.070057


  • DSL
  • Dynamic spectrum management
  • Game theory
  • Interference channel
  • Iterative water filling
  • Multicarrier systems
  • Pricing


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