<s>
Abiding	O
geocast	B-Protocol
is	O
a	O
time	O
stable	O
geocast	B-Protocol
scheme	O
used	O
in	O
some	O
ad	B-Protocol
hoc	I-Protocol
wireless	I-Protocol
networks	I-Protocol
.	O
</s>
<s>
In	O
contrast	O
to	O
an	O
ordinary	O
geocast	B-Protocol
,	O
which	O
is	O
delivered	O
to	O
all	O
nodes	O
which	O
are	O
inside	O
a	O
destination	O
region	O
exactly	O
at	O
the	O
time	O
of	O
sending	O
plus	O
distribution	O
delay	O
in	O
the	O
network	O
,	O
abiding	O
geocast	B-Protocol
allows	O
senders	O
to	O
define	O
a	O
lifetime	O
for	O
the	O
geocast	B-Protocol
message	O
.	O
</s>
<s>
Abiding	O
geocast	B-Protocol
is	O
created	O
by	O
the	O
retransmission	O
of	O
the	O
geocast	B-Protocol
message	O
,	O
either	O
periodically	O
to	O
the	O
destination	O
region	O
or	O
whenever	O
a	O
node	O
inside	O
the	O
destination	O
region	O
detects	O
a	O
new	O
neighbor	O
.	O
</s>
<s>
New	O
services	O
and	O
applications	O
such	O
as	O
position-based	O
advertising	O
,	O
position-based	O
publish	B-Operating_System
and	I-Operating_System
subscribe	I-Operating_System
use	O
abiding	O
geocast	B-Protocol
.	O
</s>
<s>
Abiding	O
geocast	B-Protocol
could	O
enable	O
the	O
creation	O
of	O
virtual	O
traffic	O
signs	O
such	O
as	O
local	O
hazard	O
warnings	O
.	O
</s>
<s>
For	O
example	O
,	O
an	O
abiding	O
geocast	B-Protocol
fixed	O
to	O
a	O
certain	O
geographical	O
area	O
could	O
warn	O
approaching	O
vehicles	O
about	O
an	O
icy	O
road	O
.	O
</s>
