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On the energy efficiency of IEEE 802.11 WLANs

Serrano, Pablo and Garcia-Saavedra, Andres and Hollick, Matthias and Banchs, Albert (2010) On the energy efficiency of IEEE 802.11 WLANs. In: The 16th European Wireless Conference - Invited Session on Greening of the Wireless Internet (EW 2010), 12 – 15 April 2010, Lucca, Italy.

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Abstract

Understanding the energy consumption of wireless interfaces is critical to provide guidelines for the design and implementation of new protocols or interfaces. In this work we analyze the energy performance of an IEEE 802.11 WLAN. Our contributions are as follows: i) we present an accurate analytical model that is able to predict the energy consumption, ii) we present an approximate model that sacrices accuracy for the sake of analytical tractability, iii) based on this simplied analysis, we derive the optimal conguration to maximize energy efciency of a WLAN, and iv) nally, we also analyze the tradeoff between throughput and energy efciency that IEEE 802.11 imposes. While most of these results consider a homogeneous WLAN scenario where all stations share the same energy features, we also discuss the case of heterogeneous environments, where different devices show different power consumption characteristics.

Item Type: Conference or Workshop Papers (Paper)
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Depositing User: Acosta Angel
Date Deposited: 20 Feb 2012 09:13
Last Modified: 09 Dec 2014 12:29
URI: http://eprints.networks.imdea.org/id/eprint/153

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