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Comparative Simulat...
Comparative Simulation Study of Fast Heuristics for Power Control in Copper Broadband Networks
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- Wolkerstorfer, Martin (författare)
- FTW Telecommunications Research Center Vienna, Vienna, Austria
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- Nordström, Tomas, 1963- (författare)
- Högskolan i Halmstad,Centrum för forskning om inbyggda system (CERES),FTW Telecommunications Research Center Vienna, Vienna, Austria
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(creator_code:org_t)
- Amsterdam : Elsevier, 2014
- 2014
- Engelska.
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Ingår i: Signal Processing. - Amsterdam : Elsevier. - 0165-1684 .- 1872-7557. ; 104:November 2014, s. 437-449
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Digital subscriber lines
- Power control
- Meta-heuristics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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