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Energy-saving by Low-Power Modes in ADSL2
FTW Telecommunications Research Center Vienna, Vienna, Austria.
FTW Telecommunications Research Center Vienna, Vienna, Austria.
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Centrum för forskning om inbyggda system (CERES). FTW Telecommunications Research Center Vienna, Vienna, Austria.ORCID-id: 0000-0002-0562-2082
2012 (engelsk)Inngår i: Computer Networks, ISSN 1389-1286, E-ISSN 1872-7069, Vol. 56, nr 10, s. 2468-2480Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The large number of broadband users and its forecast growth has recently triggered research on energy-efficiency in digital subscriber lines (DSLs). A promising technique are low-power modes (LPMs) as standardized in asymmetric DSL 2 (ADSL2) which let the DSL connection operate in downstream direction with reduced transmit rate and power. We study the problem of optimizing the LPM rate-level for energy-efficiency. A traffic-independent rate setting is proposed based on an analytical competitive framework. Also, a Markov chain based LPM model is derived which facilitates the fast numerical optimization of the LPM rate-level under realistic traffic models and system constraints. Simulation results under various traffic settings and DSL scenarios demonstrate energy savings by LPMs of around 30–40% of the ADSL2 transceiver’s power consumption. Furthermore, they provide insights on how to set the LPM rate-levels in practice for energy-efficient DSL operation. © 2012 Elsevier B.V. All rights reserved.

sted, utgiver, år, opplag, sider
Amsterdam: Elsevier, 2012. Vol. 56, nr 10, s. 2468-2480
Emneord [en]
Digital subscriber lines, Low-power modes, Optimization
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-18019DOI: 10.1016/j.comnet.2012.03.015ISI: 000306209200011Scopus ID: 2-s2.0-84862024102OAI: oai:DiVA.org:hh-18019DiVA, id: diva2:534373
Merknad

Funding: The Competence Center FTW Forschungszentrum Telekommunikation Wien GmbH is funded within the program COMET - Competence Centers for Excellent Technologies by BMVIT, BMWA, and the City of Vienna.

Tilgjengelig fra: 2012-06-16 Laget: 2012-06-16 Sist oppdatert: 2017-04-18bibliografisk kontrollert

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