<s>
The	O
Multipath	B-Protocol
On-demand	I-Protocol
Routing	I-Protocol
(	O
MOR	O
)	O
protocol	O
is	O
a	O
protocol	O
to	O
connect	O
nodes	O
in	O
wireless	B-Architecture
sensor	I-Architecture
networks	I-Architecture
.	O
</s>
<s>
It	O
is	O
an	O
ad	B-Protocol
hoc	I-Protocol
routing	I-Protocol
protocol	I-Protocol
which	O
is	O
reactive	O
or	O
on-demand	O
,	O
meaning	O
that	O
it	O
establishes	O
routes	O
as	O
needed	O
.	O
</s>
<s>
MOR	O
lessens	O
the	O
disadvantages	O
of	O
on-demand	O
routing	O
in	O
wireless	B-Architecture
sensor	I-Architecture
networks	I-Architecture
by	O
having	O
the	O
likely	O
targets	O
of	O
communication	O
perform	O
an	O
initial	O
broadcast	O
.	O
</s>
<s>
The	O
main	O
characteristic	O
distinguishing	O
MOR	O
from	O
other	O
ad	B-Protocol
hoc	I-Protocol
routing	I-Protocol
protocols	I-Protocol
is	O
that	O
it	O
maintains	O
multiple	O
routes	O
to	O
each	O
destination	O
,	O
when	O
available	O
,	O
whereas	O
most	O
other	O
such	O
protocols	O
only	O
keep	O
a	O
single	O
route	O
.	O
</s>
<s>
It	O
then	O
sends	O
successive	O
packets	O
to	O
each	O
such	O
node	O
in	O
round-robin	B-Algorithm
fashion	O
.	O
</s>
<s>
This	O
allows	O
automatic	O
and	O
graceful	O
recovery	O
from	O
occasional	O
localized	O
congestion	B-Protocol
as	O
well	O
as	O
longer-term	O
reasons	O
for	O
node	O
unavailability	O
.	O
</s>
