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Is Green Networking Beneficial in Terms of Device Lifetime?
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).ORCID iD: 0000-0002-5636-9910
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Optical Network Laboratory (ON Lab).
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2015 (English)In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 53, no 5, 232-240 p.Article in journal (Refereed) Published
Abstract [en]

This article analyzes the impact that sleep mode (SM)-based green strategies have on the reliability performance of optical and cellular network elements. First, we consider a device in isolation (i. e., not plugged into a network in operation), showing how operational temperature and temperature variations, both introduced by SM, impact its lifetime. We then evaluate, from an operational cost perspective, the impact of these lifetime variations, showing that some devices are critical, that is, their achievable energy savings might not cover the potential additional reparation costs resulting from being put in SM too frequently. Moreover, we present a model for evaluating the impact of SM on the lifetime of a device plugged into an operational network. The analysis considers two case studies (one based on the optical backbone and one on cellular networks) showing that the lifetime of a device is influenced by both the hardware parameters, which depend on the specific design of the device, and the SM parameters, which instead depend on the energy-efficient algorithm used, the network topology, and the traffic variations over time. Our results show that (i) the changes in the operational temperature and the frequency of their variation are two crucial aspects to consider while designing a SM-based green strategy, and (ii) the impact of a certain SM-based strategy on the lifetime of network devices is not homogeneous (i. e., it can vary through the network).

Place, publisher, year, edition, pages
2015. Vol. 53, no 5, 232-240 p.
Keyword [en]
Power, Technologies, Performance
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-169274DOI: 10.1109/MCOM.2015.7105670ISI: 000354479400034OAI: oai:DiVA.org:kth-169274DiVA: diva2:822339
Funder
EU, FP7, Seventh Framework Programme, 318137 607078
Note

QC 20150616

Available from: 2015-06-16 Created: 2015-06-12 Last updated: 2016-05-16Bibliographically approved

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