[Firebug-cvs] firebug/web smartstruct_abs.txt,NONE,1.1

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	smartstruct_abs.txt 
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Title:

Sensor network behavior at the urban-rural interface:
making smart structures smarter

Authors:

A. Sharma, M. M. Chen, D. M. Doolin, N. Sitar, S. Glaser


Smart structures incorporating wired and wireless network 
sensors are becoming closer to practical reality.  Interpreting
data from such structures, however, 
often requires context: brick cladding sensor 
high temperatures as a result of radiant heating 
from solar or from wildfire.  Interpreting such data 
often requires knowing the environmental conditions
surrounding the structure.  Convenience dictates that 
any such surrounding network be wireless and self-organizing.

Wireless self-organizing sensor networks are the topic 
of much current interest.  One of the most difficult 
aspects to constrain with these networks is the 
efficacy of radio communications.  Work at Berkeley
and elsewhere has established base-line behavior 
of radio communication in a number of relatively
unobstructed environments, such as flat outdoor areas,
and large indoor and indoor corridors.

 
Here, we present the results of field experiments using the 
Mica2 platfrom, and Atmel 128L microprocessor running 
the Tiny Operating System (TinyOS) deployed in Claremont
Canyon, a wooded riparian environment 
straddling the Berkeley and Oakland  (CA) 
city limits. Vegetation in Claremont Canyon consists 
of a high proportion of Eucalyptus and Monterey Pine
groves, extremely flammable in the dry conditions 
common in late summer and early autumn in the area.
The upper ends of the canyon are part of the East Bay 
Regional Parks system, while the lower parts are 
heavily developed with single family residences.

Our main interest is in developing wireless communication 
in the wildland environment.  We present the results of 
on-location behavior of the network, including a number
of link statistics.