WinProp is a complete suite of tools in the domain of wireless propagation and radio network planning. With applications
ranging from satellite to terrestrial, from rural via urban to indoor radio links, WinProp’s innovative wave propagation models combine accuracy with short computation time.
View the typical workflows when working with propagation simulations in specific scenarios, how to add a network planning
to a propagation simulation, include a receiver pattern, set up a time-variant scenario, include multiple-input multiple-output
(MIMO) at both the base station and the mobile station, connectivity analysis of sensor networks and optimization.
Use AMan to generate, edit and analyze a single antenna. Superimpose multiple antennas radiating similar signals to determine
the actual antenna pattern while taking into consideration the local environment.
WinProp includes empirical and semi-empirical models (calibration with measurements possible), rigorous 3D ray-tracing models
as well as the unique dominant path model (DPM).
In WinProp various air interfaces and applications are pre-defined: broadcasting, cellular, wireless access, WiFi, sensor networks,
ICNIRP and EM compliance.
Optimize the azimuth angle of the tilt of a base-station antenna.
Optimization Overview
During the installation of new radio networks, it is often difficult to find the
optimum azimuth and tilt of every base-station sector antenna. With OptMan, you can find the best radio coverage by adjusting
azimuth and tilt of a given set of antennas and sites. First, define a
radio-planning project with ProMan, including all
sites and antennas. Based on any specified network-planning result type, for
example, data rate, signal level, interference level, or similar and corresponding
optimization target definitions, OptMan finds the best
antenna azimuths and tilts to fulfill these specified targets or approach the
defined targets as close as possible.
Model Type
The ProMan project is an example of a network planning
project for an urban scenario.
Sites and Antennas
The ProMan project has three sites with a total of five
sector antennas, see Figure 1. The Site 1 antennas are located at a height of 15 m and the other two sites at 5
m. All operate on a single carrier frequency of 2120 MHz.
Tip: Click Project > Edit Project Parameter and click the Sites tab to view the sites
and antennas.
In OptMan, the antennas (transceivers) are listed, as
shown in Figure 2. This is
the list before optimization.
At the beginning of the optimization, the antennas to be varied have the check mark
Consider for Optimization in the settings at the bottom
of the list, and they have the green dot in the ID
column.
Optimization Target
The optimization target is to achieve a signal-to-noise-and-interference ratio of at
least 5 dB in the entire computational area.
Tip: Click Project > Parameter and click the Target tab to select the
optimization target.
The antennas all use the same carrier, which would
lead to significant interference.
Tip: If ProMan fails to start, confirm the path in Project > Local Settings.
During the optimization the optimization, chart shown in Figure 3 reports the success
rate of the individual runs.
Results
The optimum is achieved when the antennas at site 2 and site 3 point away from site
1. This is seen in the updated angles for azimuth in Figure 4.
Even after optimization, the SNIR plot (Figure 5) still shows large
blue areas where the SNIR is below 5 dB. This is mainly because the three-sector
antennas of Site 1 are on the same carrier and interfere with each other. The
optimization of the azimuths of the two other antennas was successful.