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2008
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Semi-Blind Power Allocation for Digital Subscriber Lines

8 years 8 months ago
Semi-Blind Power Allocation for Digital Subscriber Lines
— Digital subscriber lines (DSL) are today one of the most important means for delivering high-speed data transmission. An emerging technique for dealing with one of the technology’s most harmful problems, crosstalk, is dynamic spectrum management (DSM). DSM literature already counts with some half a dozen important solutions. These solutions can be classified according to four different aspects: optimality, computational cost, distribution and required crosstalk channel information. In this work we present an algorithm, named semiblind spectrum balancing, which achieves a compelling trade-off between these four aspects. The scheme is based on the idea of optimization against a virtual line, a fictitious line to represent the damage caused to other users in the network. This line is adjusted with the aid of limited message-passing between modems and a central agent and very simple crosstalk channel information. Crosstalk channel knowledge required should be much simpler to obtain...
Rodrigo Moraes, Boris Dortschy, Aldebaro Klautau,
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Where ICC
Authors Rodrigo Moraes, Boris Dortschy, Aldebaro Klautau, Jaume Rius i Riu
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