Selective Iterative Waterfilling for Digital Subscriber Lines

  title={Selective Iterative Waterfilling for Digital Subscriber Lines},
  author={Yang Xu},
  journal={EURASIP J. Adv. Sig. Proc.},
This paper presents a high-performance, low-complexity, quasi-distributed dynamic spectrum management (DSM) algorithm suitable for DSL systems. We analytically demonstrate that the rate degradation of the distributed iterative waterfilling (IW) algorithm in near-far scenarios is caused by the insufficient utilization of all available frequency and power resources due to its nature of noncooperative game theoretic formulation. Inspired by this observation, we propose the selective IW (SIW… CONTINUE READING


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