A Statistical Model for the Connectivity of Nodes in a Multi-Sink Wireless Sensor Network Over a Bounded Region

Konferenz: European Wireless 2008 - 14th European Wireless Conference
22.06.2008 - 25.06.2008 in Prague, Czech Republic

Tagungsband: European Wireless 2008

Seiten: 6Sprache: EnglischTyp: PDF

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Fabbri, Flavio (WiLAB, DEIS, University of Bologna, ITALY)
Verdone, Roberto (WiLAB, IEIIT-BO/CNR, DEIS, University of Bologna, ITALY)

In this Paper we present a novel mathematical approach to evaluate the degree of connectivity of a multisink Wireless Sensor Network. We consider both unbounded and bounded domains, specifically squares and rectangles, and the impact of border effects is also shown. Our channel model takes random fluctuations into account, as well as a distancedependent deterministic path-loss. In particular, we deal with randomly shaped wireless footprints, rather than with the less realistic (yet widely adopted) disk model, which is a special case of our channel model. Our performance metric is based on the probability that a randomly chosen sensor is not isolated, from which the probability that a certain amount of nodes are connected can be easily derived.