| Abstract
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<p>The data-rate in currently deploy … <p>The data-rate in currently deployed multi-carrier digital subscriber line (DSL) communication systems is limited by the interference among copper lines. This interference can be alleviated by multi-user transmit power allocation. Problem decomposition results in a large number of per-subcarrier problems. Our objective is to solve these nonconvex integer per-subcarrier power control problems at low complexity. For this purpose we develop ten combinatorial heuristics and test them by simulation under a small complexity budget in scenarios with tens of DSL users, where optimal solutions are currently intractable. Simulation results lead us to the conclusion that simple randomized greedy heuristics extended by a specific local search perform well despite the stringent complexity restriction. This has implications on multi-user discrete resource allocation algorithms, as these can be designed to jointly optimize transmit power among users even in large-scale scenarios.</p>s even in large-scale scenarios.</p>
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| Author
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Martin Wolkerstorfer +
, Tomas Nordström +
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| DOI
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http://dx.doi.org/10.1016/j.sigpro.2014.05.004 +
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| Diva
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http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:715126
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| Journal
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Signal Processing +
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| PublicationType
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Journal Paper +
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| Publisher
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Elsevier +
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| Title
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Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
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| Year
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2014 +
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| Has queryThis property is a special property in this wiki.
|
Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
, Publications:Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks +
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| Categories |
Publication +
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| Modification dateThis property is a special property in this wiki.
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26 June 2014 03:44:31 +
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