SCALE: A Low-Complexity Distributed Protocol for Spectrum Balancing in Multiuser DSL Networks

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關鍵詞速查

  • near–far effect:the near–far effect occurs when a user enjoying a good channel close to the receiver overpowers the received signal of a user further away having a worse channel
  • DSL:digital subscriber line
  • DSM:dynamic spectrum management
  • SCALE:(Successive Convex Approximation for Low complExity)
  • very high speed DSL: (VDSL)

問題背景

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總之,好處是顯而易見的
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This paper is concerned with the balancing of users’ power spectral densities (PSDs), explicitly taking crosstalk effects into account. A significant improvement in network capacity is possible by such a judicious allocation of users’ power, and especially so in near–far situations as pictured in Fig. 1.

一個重要的不等式

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