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Insomnia in the Acc...
Insomnia in the Access (or How to Curb Access Network Related Energy Consumption)
- Article/chapterEnglish2011
Publisher, publication year, extent ...
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New York, New York, USA :Association for Computing Machinery (ACM),2011
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-147101
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147101URI
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https://doi.org/10.1145/2018436.2018475DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:kon swepub-publicationtype
Notes
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QC 20140704
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Access networks include modems, home gateways, and DSL Access Multiplexers (DSLAMs), and are responsible for 70-80% of total network-based energy consumption. In this paper, we take an in-depth look at the problem of greening access networks, identify root problems, and propose practical solutions for their user- and ISP-parts. On the user side, the combination of continuous light traffic and lack of alternative paths condemns gateways to being powered most of the time despite having Sleep-on-Idle (SoI) capabilities. To address this, we introduce Broadband Hitch-Hiking (BH2), that takes advantage of the overlap of wireless networks to aggregate user traffic in as few gateways as possible. In current urban settings BH2 can power off 65-90% of gateways. Powering off gateways permits the remaining ones to synchronize at higher speeds due to reduced crosstalk from having fewer active lines. Our tests reveal speedup up to 25%. On the ISP side, we propose introducing simple inexpensive switches at the distribution frame for batching active lines to a subset of cards letting the remaining ones sleep. Overall, our results show an 80% energy savings margin in access networks. The combination of BH2 and switching gets close to this margin, saving 66% on average.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Canini, Marco
(author)
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Lopez, Alberto
(author)
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Laoutaris, Nikolaos
(author)
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Kostic, DejanEPFL(Swepub:kth)u12eursm
(author)
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Rodriguez, Pablo
(author)
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Stanojevic, Rade
(author)
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Yague, Pablo
(author)
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EPFL
(creator_code:org_t)
Related titles
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In:Proceedings of the ACM SIGCOMM 2011 Conference on Applications, Technologies, Architectures, and Protocols for Computer CommunicationsNew York, New York, USA : Association for Computing Machinery (ACM), s. -3499781450307970
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