|
|
News
|
News around the WinProp software package during the last months:
|
|
|
|
May 2012
Indoor Pixel Databases
The availability of 3D vector databases is
very often a problem in indoor scenarios.
If 3D vector data is not available, the data must be
generated in a time-consuming process with CAD tools (e.g. WallMan).
To accelerate the simulation process and to reduce the costs, WinProp is now
able to work directly with
scanned maps of the building floors.
The drawings of the different floors can be scanned and
the bitmaps can be imported into the WinProp suite. Of course, multi floor buildings
can be anaylzed in 3D with different maps and individual heights for each floor.
After assigning (pre-defined) material properties to the different colors
of the bitmaps, the user can directly start with the
propagation analysis.
No conversion to vector data is required! The user can now work directly with the
pixel maps.
|
__
|
|
|
April 2012
Parallel processing of propagation analysis
If multi core CPUs or even multiple CPUs are available in a PC, the different transmitters (sites)
within a ProMan project can now be computed in parallel (each core/CPU computes one
of the transmitters).
|
__
|
|
This accelerates significantly the total computation time for projects
with many transmitters (sites).
The multi-processing is available for
rural,
urban,
indoor, and
tunnel scenarios.
|
|
April 2012
Indoor ray tracing: More reflections possible
The 3D SRT (standard ray tracing) for indoor scenarios was extended. Now up to six reflections are
possible. Combined with max. 2 diffractions and an unlimited number of transmissions.
This increases especially the accuracy in scenarios with waveguiding effects in long corridors.
|
__
|
|
|
|
|
Obviously furniture and persons inside buildings have a significant impact on the wave propagation
and should therefore be considered in the propagation analysis - but their locations are non-deterministic,
i.e. the user does not know where these objects are located exactly (furniture) or they are even
non-stationary (persons).
Therefore the effects of furniture, persons, etc. in indoor databases
cannot be described with deterministic 3D objects (polygons).
|
__
|
|
WallMan offers now the possibility to define areas with non-deterministic
objects in the database. These areas can be defined to describe the shadowing in a statistical sense.
The propagation paths inside these areas (polygonal cylinders) get a higher attenuation
depending on the length of the path inside the object (and the type of object). Mobile stations located inside these
objects will also get a higher path loss assigned (depending on the type of the object).
Accordingly the above mentioned non-deterministic objects in indoor environments can now be considered in the propagation analysis,
leading to a higher accuracy.
|
|
|
|
WinProp's sophisticated Intelligent Ray Tracing (3D IRT)
combines very short computation times with a very high accuracy. Full 3D spatial mobile radio channel analysis
is possible within a few seconds for very large buildings.
The IRT requires a single preprocessing of the building data. This preprocessing has now been significantly
accelerated on PCs with multiple cores and/or CPUs. Each core/CPU can preprocess a part of the building data -
leading to a significant reduction of the totally required time for the preprocessing.
|
__
|
|
|
|
|
__
|
|
|
December 2011
New WinProp Release V12
The new release of WinProp is now available. WinProp V12
includes many new features.
Prepare to be amazed! WinProp is now faster, more flexible and achieves a higher accuracy.
|
__
|
|
|
December 2011
Redesign of ProMan GUI
The code for drawing the maps and for the display of the results was redesigned. Now the display is much faster and
the scrolling is also improved.
Additionally some dialogues are now in a new design and the tree view with results
got new icons to simplify the navigation in the project.
Also the display of prediction planes ( indoor scenarios) or
indoor penetration layers ( CNP results in
urban scenarios)
was improved. Now the propagation paths and best server links are also shown for these additional results.
|
__
|
|
|
November 2011
Enhanced network planning module
- Extensions for OFDM air interfaces to improve the accuracy for LTE planning.
- New mode for consideration of cell load in OFDM networks (bandwidth reduction instead of power reduction)
- Code combining and MIMO for CDMA air interfaces (to model HSPA evolutions).
- Independent results for throughout (for all users at pixel) and max data rate (for single user at pixel)
- and much more....
|
|
Especially for LTE the new interference module is very important. Now the cell load can either
influence the transmission power of the cell (power reduction mode) or the bandwidth of the
transmitted signals in the cell (bandwidth reduction mode i.e. number of subcarriers used).
This is especially important at the border of the cells, e.g. if two adjacent cells have a cell
load of 50%, they have no interference in case of bandwidth reduction mode while in power
reduction mode they would still have an interference!
|
|
October 2011
Extensions for Tunnel Propagation Engine
Variations in the ground elements of the tunnels
are now supported. The ground (bottom) of the tunnel has no longer to be flat. This "topography"
of the ground can now be defined in TuMan
and exported to be considered during the computation in ProMan.
This allows a more realistic modeling of tunnels.
Further improvements with respect to the definition of leaky feeder cables are now available to
simplfy the work with leaky feeder cables in tunnels.
|
__
|
|
|
September 2011
New results in the network planning: Nr of parallel streams and throughput
New prediction reults now available for the network planning: The number of parallel
streams at a given location with a selected transmission mode as well as the throughput
for each transmission mode is now predicted. This allows a more detailed network optimization
with respect to the throughput.
|
__
|
|
|
August 2011
New deterministic propagation model for rural scenarios
For rural scenarios described with topograhical
and clutter databases (with clutter heights)
a new deterministic propagation model is available. The
model computes propagation paths with multiple interactions
(reflections/diffractions) in the vertical plane (and optionally outside
the vertical plane). Additionally interactions Ireflections, diffractions) at arbitrary oriented
and located 3D vector objects in the scenario can be considered.
|
__
|
|
|
July
2011
Network
Planning
now individually for each carrier
The network
planning can now be computed
individually for each carrier, i.e.
multiple carriers in the same cell can
be analyzed individually.
TDD air interfaces can be described in
a new and enhanced way to increase the
accuracy in the network planning.
|
__
|
|
|
June
2011
Urban
IRT
Preprocessing supports now multiple
CPUs and Cores
The
preprocessing of
building databases for the 3D
Intelligent
Ray Tracing can now be
significantly accelerated in case of
multiple CPUs and/or Cores in the PC.
During the IRT preprocessing the
determination of the visibility
relations is distributed among the
CPUs and/or Cores available in the PC.
Up to 8 CPUs/cores are supported in
parallel leading to very high
acceleration factors. The
multi-threading in combination with
the 64 Bit version of WallMan
allows now the preprocessing of larger
urban scenarios for the IRT prediction
model.
|
__
|
|
|
May
2011
New
Prediction Model for the indoor
coverage in urban scenarios
WinProp's urban
propagation engine was extended
with respect to the prediction of the
indoor coverage. Now three different
coverage models are available for the
anaylsis of the penetration of
electromagnetic waves into buildings.
-
Model 1 is
the basic approach and considers
the (building depeneding)
penetration loss at the outer
walls and determines a constant
constant signal level inside the
building depending on the outdoor
coverage (and the penetration loss
of the outer walls).
-
Model 2
considers also the penetration
loss of the outer walls - but here
additionally an exponential
decrease of the signal level
inside the building is predicted
with an attenuation rate depending
on the depth of the building.
-
And the new
model 3 considers a user-defined
attenuation rate [dB/m] to model
the attenuation of the signal
inside the building very exactly.
The figures
compare the three different indoor
penetration and coverage models.
|
__
|
|
|
|
|
__
|
|
|
|
|
__
|
|
|
WinProp
has been extended towards the analysis of femto cells. Here especially the
transition between outdoor
and indoor scenarios is very important to determine the interference
between the femto cell and the outdoor network. The new module is calibrated
with the measurements in femto cells - obtained within the project FORUM.
|
__
|
|
|
|
|
|
|
|
Presentation
of the Company
|
|
|
|
|
Brochure
with an overview about the products
|
|
|
|
|
Brochure with
key
facts about AWE Communications
|
|
|
|
|
Read more about
the Company
|
|
|
|
|
