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Insomnia in the Acc...
Insomnia in the Access (or How to Curb Access Network Related Energy Consumption)
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Goma, Eduard (författare)
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Canini, Marco (författare)
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Lopez, Alberto (författare)
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Laoutaris, Nikolaos (författare)
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- Kostic, Dejan (författare)
- EPFL
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Rodriguez, Pablo (författare)
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Stanojevic, Rade (författare)
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Yague, Pablo (författare)
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(creator_code:org_t)
- New York, New York, USA : Association for Computing Machinery (ACM), 2011
- 2011
- Engelska.
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Ingår i: Proceedings of the ACM SIGCOMM 2011 Conference on Applications, Technologies, Architectures, and Protocols for Computer Communications. - New York, New York, USA : Association for Computing Machinery (ACM). - 9781450307970 ; , s. -349
- Relaterad länk:
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http://dl.acm.org/ci...
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https://kth.diva-por... (primary) (Raw object)
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http://kth.diva-port...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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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.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
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