%T YASS: a Scalable Sensornet Simulator for Large Scale Experimentation
%A Jonathan Tate, Iain Bate
%E Peter H. Welch, S. Stepney, F.A.C Polack, Frederick R. M. Barnes, Alistair A. McEwan, G. S. Stiles, Jan F. Broenink, Adam T. Sampson
%B Communicating Process Architectures 2008
%X Sensornets have been proposed consisting of thousands or
tens of thousands of nodes. Economic and logistical
considerations imply predeployment evaluation must take
place through simulation rather than field trials. However,
most current simulators are inadequate for networks with
more than a few hundred nodes. In this paper we demonstrate
some properties of sensornet application and protocols that
only emerge when considered at scale, and cannot be
effectively addressed by representative small\-scale
simulation. We propose a novel multi\-phase approach to
radio propagation modelling which substantially reduces
computational overhead without significant loss in accuracy.
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