Link-level Measurements from an 802.11b Mesh Network

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Link-level Measurements from an 802.11b Mesh Network (2004)

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by Daniel Aguayo , John Bicket , Sanjit Biswas , Glenn Judd , Robert Morris

Venue:	In SIGCOMM
Citations:	566 - 11 self

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@INPROCEEDINGS{Aguayo04link-levelmeasurements,
    author = {Daniel Aguayo and John Bicket and Sanjit Biswas and Glenn Judd and Robert Morris},
    title = {Link-level Measurements from an 802.11b Mesh Network},
    booktitle = {In SIGCOMM},
    year = {2004},
    pages = {121--132}
}

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Abstract

This paper anal yzes the causes of packetl oss in a 38-node urban mul ti-hop 802.11b network. The patterns and causes oflv# are important in the design of routing and errorcorrection proto colv as wel as in networkplqq"(v The paper makes the fol l owing observations. The distribution of inter-nodel oss rates is rel'RfivD' uniform over the wh ol range oflv$ rates; there is no clq$ threshol separating "in range" and "out of range." Mostls ks have relj tivel stabl el oss rates from one second to the next, though a smal l minority have very burstyl osses at that time scal e. Sign al to-noise ratio and distance have lv tl e predictive val e forl oss rate. Thel arge number of lv ks with intermediate l oss rates is probabl y due to mul ti-path fading rather than attenuation or interference. The phenomena discussed here are al l wel l -known. The contributions of this paper are an understanding of their rel ative importance, of how they interact, and of the impl ications for MAC and routing protocol design.

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