The Triangle Metric: Fast link quality estimation for mobile wireless sensor networks

Carlo Alberto Boano, Marco Antonio Zúñiga, Thiemo Voigt, Andreas Willig, Kay Romer

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

88 Citations (Scopus)

Abstract

Link quality estimation is a thorny problem in wireless sensor networks, because its accuracy affects the design and the efficiency of networking protocols and applications. Especially in the context of low-power wireless, estimating the link quality poses a sort of catch-22 dilemma, whereby a large number of packet samples are required to accurately estimate a channel, but only a few samples should be used due to limited energy resources. This paradox becomes even more severe in mobile wireless sensor networks, since the high variability of the medium imposes even stricter constraints on the timing in which the estimation has to be carried out. In this paper we propose the Triangle Metric, a metric that combines geometrically the information of PRR, LQI, and SNR into a robust estimator that guarantees a fast and reliable assessment of the link quality. Our evaluation shows that the triangle metric can identify the quality of links using as few as 10 packet samples, making it an eligible solution for highly mobile sensor networks.

Original languageEnglish
Title of host publication2010 Proceedings of 19th International Conference on Computer Communications and Networks, ICCCN 2010
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 19th International Conference on Computer Communications and Networks, ICCCN 2010 - Zurich, Switzerland
Duration: 2 Aug 20105 Aug 2010

Publication series

NameProceedings - International Conference on Computer Communications and Networks, ICCCN
ISSN (Print)1095-2055

Conference

Conference2010 19th International Conference on Computer Communications and Networks, ICCCN 2010
Country/TerritorySwitzerland
CityZurich
Period2/08/105/08/10

Fingerprint

Dive into the research topics of 'The Triangle Metric: Fast link quality estimation for mobile wireless sensor networks'. Together they form a unique fingerprint.

Cite this