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spie_reviews.tex
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RCS file: /cvsroot/firebug/firebug/web/spie_reviews.tex,v
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+ \paragraph{Ganesan et al.}~\cite{ganesan:d2002}
+ have done the first large scale study
+ for sensor networks to explore the behavior of such a
+ distributed system. Their data provides insight into
+ designing protocols and algorithms for scalable distributed
+ sensor networks. They differentiate how each of the layers
+ in the protocol stack, link, medium access, routing and
+ application is affected.
+
+ Their study involves using 150 motes laid out in a parking lot.
+ Link characteristics and statistics as well as aggregate
+ statistics for packet loss, and packet forwarding are gathered.
+ At the medium access layer they use timing information to
+ identify metrics that capture both end-to-end properties of a
+ basic flood propagation, and local properties such as contention
+ and collision. At the node level, they maintain the number of
+ hops to the base-station and the number of children each node
+ has to take into account the clustering dynamics.
+
+ What is observed at scale is termed as non-uniform flood
+ propagation. This is shown by the existence of backward links,
+ long links, assymetrice links, nodes that are missed out in the
+ flood process and even clustering behavior wherein a few nodes
+ have many children.
+
+
\paragraph{Bulusu et al.}~\citeyear{bulusu:n2002,bulusu:n2001}
have developed techniques for
|
