<s>
Wireless	B-General_Concept
wide	I-General_Concept
area	I-General_Concept
network	I-General_Concept
(	O
WWAN	B-General_Concept
)	O
,	O
is	O
a	O
form	O
of	O
wireless	B-General_Concept
network	I-General_Concept
.	O
</s>
<s>
The	O
larger	O
size	O
of	O
a	O
wide	O
area	O
network	O
compared	O
to	O
a	O
local	B-General_Concept
area	I-General_Concept
network	I-General_Concept
requires	O
differences	O
in	O
technology	O
.	O
</s>
<s>
Wireless	B-General_Concept
networks	I-General_Concept
of	O
different	O
sizes	O
deliver	O
data	O
in	O
the	O
form	O
of	O
telephone	O
calls	O
,	O
web	O
pages	O
,	O
and	O
video	O
streaming	O
.	O
</s>
<s>
A	O
WWAN	B-General_Concept
often	O
differs	O
from	O
wireless	B-Architecture
local	I-Architecture
area	I-Architecture
network	I-Architecture
(	O
WLAN	B-Architecture
)	O
by	O
using	O
mobile	O
telecommunication	O
cellular	O
network	O
technologies	O
such	O
as	O
2G	O
,	O
3G	B-Architecture
,	O
4G	B-Architecture
LTE	O
,	O
and	O
5G	O
to	O
transfer	O
data	O
.	O
</s>
<s>
These	O
technologies	O
are	O
offered	O
regionally	O
,	O
nationwide	O
,	O
or	O
even	O
globally	O
and	O
are	O
provided	O
by	O
a	O
wireless	B-General_Concept
service	I-General_Concept
provider	I-General_Concept
.	O
</s>
<s>
WWAN	B-General_Concept
connectivity	O
allows	O
a	O
user	O
with	O
a	O
laptop	O
and	O
a	O
WWAN	B-General_Concept
card	O
to	O
surf	O
the	O
web	O
,	O
check	O
email	O
,	O
or	O
connect	O
to	O
a	O
virtual	B-Application
private	I-Application
network	I-Application
(	O
VPN	B-Application
)	O
from	O
anywhere	O
within	O
the	O
regional	O
boundaries	O
of	O
cellular	O
service	O
.	O
</s>
<s>
Various	O
computers	O
can	O
have	O
integrated	O
WWAN	B-General_Concept
capabilities	O
.	O
</s>
<s>
A	O
WWAN	B-General_Concept
may	O
also	O
be	O
a	O
closed	O
network	O
that	O
covers	O
a	O
large	O
geographic	O
area	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
mesh	B-Architecture
network	I-Architecture
or	O
MANET	B-General_Concept
with	O
nodes	O
on	O
buildings	O
,	O
towers	O
,	O
trucks	O
,	O
and	O
planes	O
could	O
also	O
be	O
considered	O
a	O
WWAN	B-General_Concept
.	O
</s>
<s>
A	O
WWAN	B-General_Concept
may	O
also	O
be	O
a	O
low-power	O
,	O
low-bit-rate	O
wireless	B-General_Concept
WAN	I-General_Concept
,	O
(	O
LPWAN	B-General_Concept
)	O
,	O
intended	O
to	O
carry	O
small	O
packets	O
of	O
information	O
between	O
things	B-Operating_System
,	O
often	O
in	O
the	O
form	O
of	O
battery	O
operated	O
sensors	O
.	O
</s>
<s>
Since	O
radio	O
communications	O
systems	O
do	O
not	O
provide	O
a	O
physically	O
secure	O
connection	O
path	O
,	O
WWANs	B-General_Concept
typically	O
incorporate	O
encryption	O
and	O
authentication	O
methods	O
to	O
make	O
them	O
more	O
secure	O
.	O
</s>
<s>
Some	O
of	O
the	O
early	O
GSM	O
encryption	O
techniques	O
were	O
flawed	O
,	O
and	O
security	O
experts	O
have	O
issued	O
warnings	O
that	O
cellular	O
communication	O
,	O
including	O
WWAN	B-General_Concept
,	O
is	O
no	O
longer	O
secure	O
.	O
</s>
<s>
UMTS	O
(	O
3G	B-Architecture
)	O
encryption	O
was	O
developed	O
later	O
and	O
has	O
yet	O
to	O
be	O
broken	O
.	O
</s>
