What if software could simulate wireless nets?

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29 Οκτ 2013 (πριν από 3 χρόνια και 7 μήνες)

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EETimes.com - What if software could simulate wireless nets?
http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=20...
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EE Times
:
Latest
News
What
if
software
could
simulate
wireless
nets?
R.
Colin
Johnson
EE
Times
(04/29/2008
11:38
AM
EDT)
PORTLAND,
Ore.

A
scalable
emulation
and
simulation
software
environment
for
next-generation
wireless
technologies
aimed
at
both
civilian
and
military
networks
will
be
announced
today
by
Scalable
Network
Technologies
Inc.
(Los
Angeles).
Building
on
the
Global
Mobile
Information
Systems
(GloMo)
Program
simulator
developed
by
the
Defense
Advanced
Research
Projects
Agency
(Darpa),
Scalable
Network
Technologies'
QualNet
and
Exata
software
simulators
accurately
model
the
behavior
and
operations,
respectively,
of
3G
and
4G
mobile
communications
networks,
including
quality-of-service,
software
defined
radios
and
network-centric
services.
By
improving
the
predictability
of
wireless,
mobile
net-centric
services,
QualNet
and
Exata
seek
to
enable
developers
to
"what
if"
new
network
topologies
and
then
try
them
out
before
building
expensive
hardware
infrastructures.
QualNet
and
Exata
integrate
design,
visualization
and
analysis
software
toolsets
into
a
real-time
simulation
environment
capable
of
modeling
thousands
of
devices
in
simultaneous
use.
A
parallel
processing
architecture
enables
the
software
simulators
to
be
scaled
up
by
merely
adding
more
cores
to
execute
its
code.
Rather
than
using
inaccurate
abstractions,
QualNet
and
Exata
directly
emulate
networks
and
the
hierarchy
of
layers,
from
the
physical
layer,
Media
Access
Control
(MAC),
link
layer,
network
layer,
Internet
protocol
(IP)
layer,
transport
layer
and
user
applications,
such
as
Email,
VoIP,
web
browsing
and
video
servers.
Scalable
Network
Technologies
claims
that
users
interacting
with
the
software
simulator
get
the
same
responses
as
they
do
from
real
networks,
and
with
the
same
response
times.
Using
open
standard
interfaces,
QualNet
and
Exata
also
accurately
recreate
channel
environment
effects,
including
device
behaviors,
communication
links,
transmitters/antennas,
terrain
and
atmospheric
effects,
and


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EETimes.com - What if software could simulate wireless nets?
http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=20...
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human
interactions.
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is
available
now,
and
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in
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quarter
of
2008
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both
sequential
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