<s>
A	O
special	O
form	O
of	O
ad	B-Protocol
hoc	I-Protocol
network	I-Protocol
,	O
they	O
make	O
entirely	O
different	O
demands	O
on	O
a	O
network	O
protocol	O
(	O
for	O
example	O
,	O
the	O
Internet	O
)	O
and	O
therefore	O
require	O
network	O
protocols	O
specially	O
build	O
for	O
them	O
(	O
SMAC	O
)	O
.	O
</s>
<s>
Sensor	B-Protocol
Media	I-Protocol
Access	I-Protocol
Control	I-Protocol
specifies	O
in	O
detail	O
how	O
the	O
nodes	O
of	O
a	O
sensor	O
network	O
exchange	O
data	O
,	O
controls	O
the	O
Media	O
Access	O
Control	O
(	O
MAC	O
)	O
to	O
access	O
the	O
shared	O
communication	O
medium	O
of	O
the	O
network	O
,	O
regulates	O
the	O
structure	O
of	O
the	O
network	B-Architecture
topology	I-Architecture
,	O
and	O
provides	O
a	O
method	O
for	O
synchronizing	O
.	O
</s>
