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On metrics and models for energy-efficient design of wireless access networks
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).ORCID iD: 0000-0001-7642-3067
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).ORCID iD: 0000-0003-4986-6123
2014 (English)In: IEEE Wireless Communications Letters, ISSN 2162-2337, E-ISSN 2162-2345, Vol. 3, no 6, 649-652 p., 6877636Article in journal (Refereed) Published
Abstract [en]

The energy efficiency of wireless access networks has attracted significant interest, due to escalating energy cost and environmental concerns. How energy efficiency should be measured is, however, still disputed in the literature. In this letter, we discuss the impact of performance metrics and energy consumption models in network dimensioning. We argue that, using a popular metric, the number of bits/Joule may give misleading results, unless the capacity and coverage requirements of the system are carefully defined. We also claim that the energy consumption in the backhaul and the idle power of the base stations have to be taken into account. To support our claims, we demonstrate in a simple example how misleading results can be obtained by using flawed performance metrics.

Place, publisher, year, edition, pages
2014. Vol. 3, no 6, 649-652 p., 6877636
Keyword [en]
Energy efficiency, network deployment, performance metric, power consumption model, wireless access network
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-161492DOI: 10.1109/LWC.2014.2347319Scopus ID: 2-s2.0-84919783177OAI: oai:DiVA.org:kth-161492DiVA: diva2:794764
Note

QC 20150312

Available from: 2015-03-12 Created: 2015-03-12 Last updated: 2017-12-04Bibliographically approved

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Sung, Ki WonZander, Jens

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